“16S rRNA NGS-based characterization of a Flavobacterium-driven skin pathology in rainbow trout (7054)”
Abstract 16S rRNA NGS-based characterization of a Flavobacterium-driven skin pathology in rainbow trout Introduction Columnaris disease, a group of Flavobacterium species known collectively as Columnaris Causing Bacteria (CCB), is a well-recognized threat in freshwater fish farming worldwide, including salmonids. In recent years, unexplained peracute skin disease outbreaks with similarities to CCB have been reported in […]
“20,000 Leagues (or 15 years) under the water: a successful journey of the European College of Aquatic Animal Health (ECAAH) towards recognition of the veterinary specialty (6972)”
Abstract 20,000 Leagues (or 15 years) under the water: a successful journey of the European College of Aquatic Animal Health (ECAAH) towards recognition of the veterinary specialty Veterinarians have traditionally and historically been focused on domestic and farmed terrestrial mammals and birds, while other vertebrates such as reptiles, amphibians or fish were only anecdotally considered […]
“3D Histopathology: Advancing Disease Detection in Aquaculture Through Tissue Clearing, Whole-fish Imaging and AI (7384)”
Abstract 3D HISTOPATHOLOGY: ADVANCING DISEASE DETECTION IN AQUACULTURE THROUGH TISSUE CLEARING, WHOLE-FISH IMAGING AND AI Introduction Aquaculture faces various challenges that hinder its development and sustainability, particularly in disease management. Early detection of diseases is essential to reduce intervention periods and improve surveillance programs, which rely on advanced diagnostic tools. Histopathology, a commonly used untargeted […]
“A 3R approach for improving monitoring of salmon migration and health status (7157)”
Abstract A 3R approach for improving monitoring of salmon migration and health status The 3R’s are beneficial regardless of whether animals are used for research, wildlife management or health monitoring. The Baltic salmon (Salmo salar) struggles with health issues, and the number returning to spawn has decreased in the last years. River Torneälven with its […]
“A Chip Tool for Non-invasive Detection of Disease-causing Organisms in Danish Fish Aquaculture (6944)”
Abstract A CHIP TOOL FOR NON-INVASIVE DETECTION OF DISEASE-CAUSING ORGANISMS IN DANISH FISH AQUACULTURE When clinical fish diseases are discovered in aquaculture facilities, the fish are usually already very sick. Treatment is initiated immediately, but decreased welfare, increased mortality and economic loss is, nonetheless, often a consequence. Therefore, prophylaxis and non-invasive early detection of disease-causing […]
“A Chlorella Virus Surrogate System for High-Throughput Screening of Antiviral Agents Against DNA Viruses (7090)”
Abstract A Chlorella Virus Surrogate System for High-Throughput Screening of Antiviral Agents Against DNA Viruses Emerging fish DNA viruses such as Red Sea Bream Iridovirus (RSIV) have significant social, cultural and economic impacts. Due to the lack of effective vaccines or treatments, outbreaks are currently managed by culling infected animals to prevent transmission, resulting in […]
“A holistic approach to bivalve health: untangling complex interactions influencing the health status of Mytilus mussel populations (7105)”
Abstract A holistic approach to bivalve health: untangling complex interactions influencing the health status of Mytilus mussel populations Introduction: Bivalve molluscs (soft-bodied aquatic animals with two shell valves, including mussels, cockles, clams, scallops and oysters) are vital ecosystem engineers in aquatic environments, as well as some species being significant aquaculture and fisheries commodities globally. In […]
“A Method for Developing a pH-Responsive Chitosan–Alginate Encapsulated Oral Vaccine Against Streptococcus iniae in Barramundi (Lates calcarifer (7267)”
Abstract A Method a pH-Responsive Chitosan–Alginate Encapsulated Oral Vaccine Against Streptococcus iniae in Barramundi (Lates calcarifer) Introduction Streptococcus iniae is a significant pathogen in aquaculture, associated with high mortality in juvenile barramundi (Lates calcarifer). While injectable vaccines using formalin-inactivated antigens with oil adjuvants confer strong protection, their use is constrained by handling requirements and limited feasibility […]
“A new draft genome of the protozoan parasite Bonamia ostreae, a major pathogen of the flat oyster Ostrea edulis. (7055)”
Abstract A new draft genome of the protozoan parasite Bonamia ostreae, a major pathogen of the flat oyster Ostrea edulis. The flat oyster (Ostrea edulis) is a native European species that has experienced a dramatic decline towards functional extinction in many regions of the Northeast Atlantic. This decline has been attributed to several factors, including […]
“A retrospective histopathological study of disease in marine ornamental fish (7237)”
Abstract A retrospective histopathological study of disease in marine ornamental fish This retrospective histopathological study reviews diseases of marine ornamental fish submitted by clinicians from public aquaria or from private practices to the Veterinary Pathology laboratory at the University of Camerino between 2012 and 2024. A total of 416 fish belonging to 158 different species […]
“A retrospective study of adverse welfare effects of handling farmed salmonids when treated for ectoparasites at sea evaluated by a Delphi panel (7357)”
Abstract A retrospective study of adverse welfare effects of handling farmed salmonids when treated for ectoparasites at sea evaluated by a Delphi panel Norwegian legislation intended to protect wild stocks of Atlantic salmon (Salmo salar (L)) from excessive burdens of salmon lice (Lepeophtheirius salmonis) by being shedded from famed salmon at sea require systematic and frequent […]
“A single-nuclei atlas of whole Pacific oysters in response to OsHV-1 infection (7107)”
Abstract A single-nuclei atlas of whole Pacific oysters in response to OsHV-1 infection The Pacific oyster (Magallana or Crassostrea gigas) is a globally important species in aquaculture, yet its production remains threatened by recurring outbreaks of Ostreid herpesvirus 1 microvariant (OsHV-1 µVar), which can cause mass mortalities in juvenile oysters. Despite the scale of this […]
“A Systematic Map of Vertebrate Intestinal Epithelial Cell Culture Techniques to Refine Salmonid Models (7227)”
Abstract A Systematic Map of Vertebrate Intestinal Epithelial Cell Culture Techniques to Refine Salmonid Models Introduction Intestinal epithelial barrier cell models are utilised in numerous applications within fish health research including immunology, nutrition and toxicology. However, in other vertebrate species models, particularly those using human cell lines, more advanced methodologies such as scaffolds, matrices and […]
“Advanced computing and camera technology-based AI-powered probe for the real-time detection of shrimp diseases (7106)”
Abstract Advanced computing and camera technology-based AI-powered probe for the real-time detection of shrimp diseases Emerging and re-emerging diseases are persistent challenges for the global shrimp industry. Sustaining shrimp health is crucial, as failure to do so can result in significant losses for farms. Traditionally, farmers assess the health status of shrimp by observing them […]
“Aeromonas veronii, in farmed European seabass (Dicentrarchus labrax) in the Ionian Sea, Greece (7371)”
Abstract Aeromonas veronii, in farmed European seabass (Dicentrarchus labrax) in the Ionian Sea, Greece. Introduction The intensification of aquaculture in the Mediterranean area together with climate change, has led to increased disease outbreaks, which threaten productivity and food security. Aeromonas veronii, is known to cause severe systemic infections in a range of fish species and […]
“Algae-enriched diets improve the survival rate upon infection in juveniles of gilthead seabream (Sparus Aurata) (7158)”
Abstract ALGAE-ENRICHED DIETS IMPROVE THE SURVIVAL RATE UPON INFECTION IN JUVENILES OF GILTHEAD SEABREAM (SPARUS AURATA) ALGAE-ENRICHED DIETS IMPROVE THE SURVIVAL RATE UPON INFECTION IN JUVENILES OF GILTHEAD SEABREAM (SPARUS AURATA) Fernando Méndez-Vivancos¹, María Isabel Sáez2, Francisco Javier Alarcón-López2, 3, Tomás Francisco Martínez2, Marta Arizcun Arizcun¹, Elena Chaves Pozo¹* 1COMU-IEO, CSIC, Spain. 2Universidad de Almería, […]
“Aliivibrio wodanis strain diversity and interaction with other ulcer-bacteria (6933)”
Abstract Aliivibrio wodanis strain diversity and interaction with other ulcer-bacteria Introduction The bacteria most commonly associated with skin ulcers in Norwegian Atlantic salmon farmed in cold seawater are Moritella viscosa, Tenacibaculum finnmarkense, and Aliivibrio wodanis. While the two first are well recognized as bacterial pathogens with a strong skin ulcer association, the role of A. […]
“Amazonian Freshwater Ellipsomyxa (Cnidaria: Myxozoa): Insights into Taxonomy, Phylogeny, Host Specificity, and Ultrastructure (7070)”
Abstract Amazonian Freshwater Ellipsomyxa (Cnidaria: Myxozoa): Insights into Taxonomy, Phylogeny, Host Specificity, and Ultrastructure Introduction The genus Ellipsomyxa was originally established to accommodate the marine species Ellipsomyxa gobii, followed by the description of several additional species infecting the gallbladders of marine and brackish water fish. Since 2018, however, a growing diversity of Ellipsomyxa species has […]
“Amino acid mutations in reassortant NNV strains isolated from wild fish drive low-temperature replication and influence host specificity (7130)”
Abstract Amino acid mutations in reassortant NNV strains isolated from wild fish drive low-temperature replication and influence host specificity Nervous Necrosis Virus (NNV; Genus Betanodavirus) is the causative agent of Viral Encephalopathy and Retinopathy, a threatening neuropathological disease that affects mainly larvae and juvenile fish. The geographical distribution of NNV is correlated with the thermotolerance […]
“An Atypical Course of Cardiomyopathy Syndrome (CMS) in Farmed Atlantic Salmon (Salmo salar) Fed a Clinical Nutrition Diet (6954)”
Abstract An Atypical Course of Cardiomyopathy Syndrome (CMS) in Farmed Atlantic Salmon (Salmo salar) Fed a Clinical Nutrition Diet Cardiomyopathy syndrome (CMS) poses a significant threat to farmed Atlantic salmon (Salmo salar), leading to high mortality rates during the seawater phase. Given that controlled experimental challenge trials with PMCV do not reproduce the mortality observed […]
“Analysis of virus replication and host responses induced following infection with different doses of heart homogenate (7252)”
Abstract Analysis of virus replication and host responses induced following infection with different doses of heart homogenate Cardiomyopathy syndrome (CMS), caused by piscine myocarditis virus (PMCV), is one of the main infectious challenges facing the salmonid industry. The disease is widespread in different production areas in Norway and the numbers of registered cases has been […]
“Ancient Expansion of Teleost Fc Receptor-Like Genes Diversifies Antibody Effector Functions in Early Vertebrates (7196)”
Abstract Ancient Expansion of Teleost Fc Receptor-Like Genes Diversifies Antibody Effector Functions in Early Vertebrates Introduction The vertebrate adaptive immune system has been shaped by a fascinating interplay between immunoglobulins and their receptors. At the heart of this defense network are Polymeric-Ig receptors (pIgRs), fragment crystallizable (FcR) receptors, and their enigmatic cousins, the Fc receptor-like […]
“Anisakid nematodes in the liver of Baltic cod: Their impact on host condition, energy reserves and spawning success (6936)”
Abstract Anisakid nematodes in the liver of Baltic cod: Their impact on host condition, energy reserves and spawning success Introduction: The poor condition of cod (Gadus morhua) in the Baltic Sea is largely a consequence of biological changes in the stock over recent decades. One of several factors contributing to these changes is the high […]
“ANTI-BETANODAVIRUS ACTIVITY OF NATURAL SUBSTANCES OBTAINED FROM BACTERIA AND ALGAE (6991)”
Abstract ANTI-BETANODAVIRUS ACTIVITY OF NATURAL SUBSTANCES OBTAINED FROM BACTERIA AND ALGAE Introduction Nervous necrosis virus (NNV) infects a wide range of fish species, causing high mortality rates in cultured fish. A prophylactic practise to enhance the natural resistance of farmed fish to viral infections is the use of functional food. Extracellular products (ECPs) from […]
“Antibiotic-Driven Evolution and Fitness Trade-Offs in Vibrio harveyi (6938)”
Abstract Antibiotic-Driven Evolution and Fitness Trade-Offs in Vibrio harveyi Introduction Antibiotic resistance is widely recognized to invoke a substantial biological cost for bacteria, as antibiotics typically target essential cellular functions. However, adaptation experiments have demonstrated that resistance can induce several changes in the bacterial cell and be maintained even in the absence of antibiotic […]
“Antimicrobial peptide AP1 from microalgae as treatment for gilthead seabream (Sparus aurata) after hormonal disruption and bacterial challenge (7079)”
Abstract Antimicrobial peptide AP1 from microalgae as treatment for gilthead seabream (Sparus aurata) after hormonal disruption and bacterial challenge Antimicrobial peptide AP1 from microalgae as treatment for gilthead seabream (Sparus aurata) after hormonal disruption and bacterial challenge J.M. García-Beltrán1,2, F. Méndez-Vivancos1, M.A. Esteban2, M. Arizcun1, E. Chaves-Pozo1* 1 COMU-IEO, CSIC, Spain. 2 University of Murcia, […]
“Antimicrobial resistance in aquatic environment and freshwater fishfarm 7313”
Abstract KEYNOTE TALK: Antimicrobial resistance in aquatic environment and freshwater fishfarm Antimicrobial resistance (AMR) was one of the three health priorities during the tripartite (FAO, WHOA, WHO) meeting in 2011. It poses a critical threat to health of people and animals, food security, and economic stability. Projections estimate 39 million human deaths linked to AMR […]
“Antimicrobial Resistance in Ornamental Fish: monitoring data from 2020 to 2023 (7339)”
Abstract Antimicrobial Resistance in Ornamental Fish: monitoring data from 2020 to 2023 The frequent and often prophylactiac use of antibiotics at subtherapeutic doses in ornamental fish farming has contribuited to the emergence of multidrug resistant (MDR) bacterial strains. This phenomenon raises significant concerns due to the global trade of ornamental species and the potential environment […]
“Antimicrobial Susceptibility of Streptococcus suis serotype VI and Streptococcus agalactiae serotype VII Causing Streptococcosis in Snakeskin Gourami (Trichopodus pectoralis) during year 2021-2025 in Thailand (7011)”
Abstract Antimicrobial Susceptibility of Streptococcus suis serotype VI and Streptococcus agalactiae serotype VII Causing Streptococcosis in Snakeskin Gourami (Trichopodus pectoralis) during year 2021-2025 in Thailand Streptococcosis is a major bacterial disease impacting the health and productivity of snakeskin gourami (Trichopodus pectoralis), a freshwater species of economic importance in Southeast Asian aquaculture. The disease is primarily […]
“Antimicrobial susceptibility testing of Aeromonas salmonicida: one size fits all? (6940)”
Abstract Antimicrobial susceptibility testing of Aeromonas salmonicida: one size fits all? Introduction: Antimicrobial susceptibility testing (AST) is used for deciding type and dosage for treatment of diseased animals as well as surveillance of antimicrobial resistance (AMR) in bacterial populations. For bacterial pathogens of fish, knowledge gaps exist regarding suitable methodology used for AST. Aeromonas salmonicida […]
“Antimicrobial use and antimicrobial resistant profiles of bacteria recovered from fish farms in Oyo state (7036)”
Abstract Antimicrobial use and antimicrobial resistant profiles of bacteria recovered from fish farms in Oyo state The growing prevalence of antimicrobial resistance and its implication for food safety, human health, animal health, and the health ecosystem have become a global concern. Of great concern was the fact that similar antimicrobials were used to treat diseases […]
“Antimicrobial Use in Aquatic Animals: Results from the 9th Round of WOAH’s Global Data Collection (6870)”
Abstract Antimicrobial Use in Aquatic Animals: Results from the 9th Round of WOAH’s Global Data Collection In May 2015, during the 83rd General Session of the World Assembly of WOAH Delegates, Members of the World Organisation for Animal Health (WOAH) officially committed to tackling antimicrobial resistance (AMR) and promoting the prudent use of antimicrobials in […]
“Antiparasitic efficacy of glutaraldehyde against Ichthyobodo salmonis and Trichodina spp. in chum salmon (Oncorhynchus keta) and barfin flounder (Verasper moseri), with a toxicological assessment on host species (7089)”
Abstract Antiparasitic efficacy of glutaraldehyde against Ichthyobodo salmonis and Trichodina spp. in chum salmon (Oncorhynchus keta) and barfin flounder (Verasper moseri), with a toxicological assessment on host species Introduction: Ichthyobodo spp. and Trichodina spp. cause significant parasitic diseases in aquaculture, particularly affecting salmonid and flounder fishes. Since the ban on formalin use in many countries, […]
“Antiviral protection in the Pacific oyster Crassostrea (Magallana) gigas against OsHV-1 infection using UV-inactivated virus (6967)”
Abstract Antiviral protection in the Pacific oyster Crassostrea (Magallana) gigas against OsHV-1 infection using UV-inactivated virus The increase of the frequency and severity of marine diseases affecting farmed marine mollusks are currently threatening the sustainability of this aquaculture sector, with few available prophylactic or therapeutic solutions. Recent advances have shown that the innate immune system […]
“Aquaculture and fishery sector’s attitudes about ESG standards, current implementation and future outlook in the Adriatic-Ionian region (7324)”
Abstract Aquaculture and fishery sector’s attitudes about ESG standards, current implementation and future outlook in the Adriatic-Ionian region The Adriatic-Ionian region contributes around 3.4% of Europe’s total fish and shellfish production with around 600 thousand tonnes produced in 2022, of which 52.8% was attributed by aquaculture. These sectors provide employment and economic benefits, setting a […]
“Aquaculture in global efforts to mitigate antimicrobial resistance (AMR) (7423)”
Abstract Aquaculture in global efforts to mitigate antimicrobial resistance (AMR) Introduction: Antimicrobial resistance (AMR) demands collective action to reduce and mitigate its threats. The Quadripartite collaboration of the World Health Organization (WHO), Food and Agriculture Organization of the United Nations (FAO), United Nations Environment Programme (UNEP) and World Organization for Animal Health (WOAH) has led […]
“Are you really a Vibrio cholerae? Impact of V. cholerae-like species in the environment, aquacultures and food (7041)”
Abstract Are you really a Vibrio cholerae? Impact of V. cholerae-like species in the environment, aquacultures and food Introduction: As environmental bacteria of aquatic ecosystems, vibrios can be of significant importance for animal and human health. Currently, for consumer protection and food safety, a focus is set on V. parahaemolyticus, V. vulnificus and V. cholerae, which are […]
“Aspects of the histopathology of the rectum of Clarias gariepinus infected with the camallanid parasite Paracamallanus cyathopharynx (Baylis,1923) (6952)”
Abstract Aspects of the histopathology of the rectum of Clarias gariepinus infected with the camallanid parasite Paracamallanus cyathopharynx (Baylis,1923) Various studies have reported on Paracamallanus cyathopharynx (Baylis,1923) morphology in various river systems all over the African continent. The data on the impact of the parasite on the host is incomplete and includes mixed species infections. […]
“Aspects of the histopathology of the stomach of Clarias gariepinus (Burchell, 1822) infected by Procamallanus (Procamallanus) pseudolaeviconchus Moravec & Van As, 2015. (6951)”
Abstract Aspects of the histopathology of the stomach of Clarias gariepinus (Burchell, 1822) infected by Procamallanus (Procamallanus) pseudolaeviconchus Moravec & Van As, 2015. African sharptooth catfish is a preferred aquaculture species. They are omnivorous and host many parasite species. The current study reports on the impact of Procamallanus (Procamallanus) pseudolaeviconchus Moravec & Van As, 2015 […]
“Assessing PFOS Impact on Oxidative Stress and Tissue Damage in Ruditapes sp. (7135)”
Abstract Assessing PFOS Impact on Oxidative Stress and Tissue Damage in Ruditapes sp. Introduction In recent years, there has been an increasing attention on the issue of pollution by perfluoroalkyl compounds (PFAS), particularly perfluorooctanesulfonic acid (PFOS). This highly persistent and bioaccumulative compound, which is widely used in industrial and consumer products, has raised concerns due […]
“Assessing the Current State of Farmed Fish Welfare in Finland: Insights from Stakeholder and Veterinary Surveys (6987)”
Abstract Assessing the Current State of Farmed Fish Welfare in Finland: Insights from Stakeholder and Veterinary Surveys Introduction The welfare of farmed fish is a growing concern in aquaculture, impacting both ethical considerations and production efficiency. In Finland, the welfare of farmed fish has not previously been systematically assessed. Understanding current welfare conditions and evaluation […]
“Assessing the impact of PFOS exposure on Bluegill susceptibility to Novirhabdovirus piscine (7361)”
Abstract Assessing the impact of PFOS exposure on Bluegill susceptibility to Novirhabdovirus piscine IntroductionPer- and polyfluoroalkyl substances (PFAS) have been widely employed in both industrial and household applications throughout the Great Lakes region for decades, resulting in extensive contamination of soil, water, and associated aquatic organisms. Among these, perfluorooctane sulfonate (PFOS) is one of the […]
“Assessing the Suitability of Galleria mellonella Larvae for Vibrio harveyi Virulence Studies (7214)”
Abstract Assessing the Suitability of Galleria mellonella Larvae for Vibrio harveyi Virulence Studies Croatian Veterinary Institute, Zagreb, Croatia Alfier M, Grbin D, Zrnčić S, Oraić D, Zupičić I G, Introduction: Understanding host–pathogen interactions is crucial for developing effective strategies to manage infectious diseases in aquaculture. Although vertebrate models such as zebrafish are commonly used, their […]
“Assessment of gill health in exposed aquaculture (7331)”
Abstract Assessment of gill health in exposed aquaculture The Norwegian salmon farming industry is increasingly focused on developing innovative technologies to address sustainability challenges related to salmon lice and the scarcity of new production sites. One possible solution is to develop technology that can be used further out to sea where there is less infection […]
“Atlantic cod gill poxvirus case in the gills of Atlantic cod suffering from cardiorespiratory disease (6919)”
Abstract Atlantic cod gill poxvirus case in the gills of Atlantic cod suffering from cardiorespiratory disease Atlantic cod (Gadus morhua), is an economically important fisheries in the North Atlantic. In Norway, attempt at Atlantic cod farming began few decades ago, with partially successful, but production collapsed around 2012 because of infectious disease problem. In the […]
“Atlantic salmon trim25 is virus-inducible and protects Salmon Head Kidney cells from ISAV infection (6857)”
Abstract Atlantic salmon trim25 is virus-inducible and protects Salmon Head Kidney cells from ISAV infection TRIM25 is an E3-ubiquitin ligase that has been identified in multiple viral and viral mimic challenges as a virus-induced gene, putatively part of the type I interferon pathway. In model species, TRIM25 acts as both a sensor of viral RNA […]
“Bacterial community profiling reveals disease-associated changes in Sarcotragus foetidus sponges (7271)”
Abstract Bacterial community profiling reveals disease-associated changes in Sarcotragus foetidus sponges Introduction Little is known about disease in the dark stinging sponge (Sarcotragus foetidus) that has a Mediterranean-centred geographical distribution. Cases of sponge disease, during October of 2023 and 2024 in the Aegean Sea, were therefore investigated. Methodology 16S rRNA gene-based profiling of bacterial communities […]
“Bacteriophage-based prophylactic measures against Flavobacterium psychrophilum in rainbow trout: effects on the pathogen and in the host (7309)”
Abstract Bacteriophage-based prophylactic measures against Flavobacterium psychrophilum in rainbow trout: effects on the pathogen and in the host Background: Flavobacterium psychrophilum, the causative agent of Rainbow Trout Fry Syndrome (RTFS), is among the major bacterial pathogens in aquaculture and leads to substantial economic losses in hatchery worldwide. The emergence of strains with decreased sensitivity to […]
“Barley as a production platform for oral vaccines in sustainable fish aquaculture (7370)”
Abstract Barley as a production platform for oral vaccines in sustainable fish aquaculture Fish health remains a major bottleneck in carp aquaculture. Beyond water quality, which can considerably weaken their immunity, carp are highly susceptible to viral, bacterial, fungal, and parasitic infections. Because these pathogens persist in pond systems, total eradication is unrealistic, and recent […]
“Bayesian evaluation of sensitivity and specificity of three PCR-based assays to detect Aphanomyces astaci in crayfish (7060)”
Abstract Bayesian evaluation of sensitivity and specificity of three PCR-based assays to detect Aphanomyces astaci in crayfish Introduction Aphanomyces astaci, the pathogen responsible for crayfish plague, is causing decline and extinction of native freshwater crayfish populations in Switzerland and Europe. Therefore, crayfish plague is classified as reportable disease in Switzerland and is listed by the […]
“Betanodavirus infection in mullet (Mugil cephalus) in Mediterranean Sea, Italy (7224)”
Abstract Betanodavirus infection in mullet (Mugil cephalus) in Mediterranean Sea, Italy The flathead grey mullet (Mugil cephalus) is a promising species for sustainable aquaculture, thanks to its biological characteristics such as fast growth, low dietary requirements, and adaptability to a wide range of breeding systems. However, Italian farming is still based mainly on extensive systems […]
“Beyond the stain: investigating Ziehl-Neelsen negative granulomas in fish and human skin using molecular diagnostics (7122)”
Abstract Beyond the stain: investigating Ziehl-Neelsen negative granulomas in fish and human skin using molecular diagnostics Introduction. Mycobacterial infection is commonly considered a potential cause of granulomatous lesions. Traditionally, mycobacteria are classified into two main groups: the Mycobacterium tuberculosis complex and non-tuberculous mycobacteria (NTM). In humans, the skin lesion called “fish tank granuloma” is typically associated […]
“BIOAQUA Cost project “enhancing knowledge of biomolecular solutions for the well-being of European aquaculture sector”: opportunities for young researchers (7231)”
Abstract BIOAQUA Cost project “enhancing knowledge of biomolecular solutions for the well-being of European aquaculture sector”: opportunities for young researchers Over the past decade, there has been a significant surge in interest surrounding the development of innovative technologies aimed at enhancing the sustainability of the aquaculture sector. As global demand for sustainable seafood continues to […]
“Biochemical characteristics of digestive enzymes of fish and their intestinal cestode (Proteocephalus percae) (7165)”
Abstract Biochemical characteristics of digestive enzymes of fish and their intestinal cestode (Proteocephalus percae) Introduction. Various aspects of the relationship in the parasite-host system have been intensively studied in the last few decades. Of particular interest are the mechanisms of interaction between the host and helminths of its digestive tract. Cestodes have acquired a number […]
“Biocontrol strategy to reduce skin fluke infections by targeting the parasite’s pre-infection stages (6929)”
Abstract Biocontrol strategy to reduce skin fluke infections by targeting the parasite’s pre-infection stages Infections by skin flukes (Monogenea: Capsalidae) pose serious challenges in mariculture, causing growth retardation, secondary infections, and increased mortality in farmed fish. These parasites inflict substantial economic losses globally, particularly in the farming of groupers, seabreams, amberjacks, and many other species. […]
“Bioengineered outer membrane vesicles as a platform for producing multivalent fish vaccines (7010)”
Abstract Bioengineered outer membrane vesicles as a platform for producing multivalent fish vaccines Vaccination is crucial for controlling infectious outbreaks and reducing antibiotic use in aquaculture. Existing vaccines focus on bacterial and viral diseases, with limited coverage for parasites and fungi, and often provide incomplete protection. As a result, infectious diseases continue to cause major […]
“Biofilm formation and viability of Renibacterium salmoninarum under varying salinities and temperatures (7098)”
Abstract Biofilm formation and viability of Renibacterium salmoninarum under varying salinities and temperatures introduction: bacterial kidney disease (bkd), caused by renibacterium salmoninarum (r. salmoninarum), is a serious disease affecting both wild and farmed salmonid fish worldwide. reports indicate an 80% mortality rate in pacific salmon and 40% in atlantic salmon. in norway, where it was […]
“Biosecurity in aquaculture: a practical approach for on-farm implementation (7328)”
Abstract Biosecurity in aquaculture: a practical approach for on-farm implementation Introduction Aquaculture continues to expand as a major source of global animal protein. However, its growth is constrained by the persistent threat of infectious diseases. Effective biosecurity measures remain key for disease prevention yet their implementation at the farm level is often inconsistent due to […]
“Bloody Intruders: Gill Histopathology Caused by Aporocotyle Spinosicanalis Eggs in Merluccius Merluccius From the Catalan Coast (Nw Mediterranean) (7015)”
bstract BLOODY INTRUDERS: GILL HISTOPATHOLOGY CAUSED BY APOROCOTYLE SPINOSICANALIS EGGS IN MERLUCCIUS MERLUCCIUS FROM THE CATALAN COAST (NW MEDITERRANEAN) Introduction Blood flukes (Trematoda: Aporocotylidae) are common parasites in fish, often causing economic losses in aquaculture due to egg-induced pathologies. These parasites are often unnoticed and monitoring their pathological impact over time is even more complex. […]
“Booster immersion vaccination using hybrid lipid nanoparticle conferred prolonged protective immunity against Aeromonas veronii infection in red tilapia (Oreochromis spp.) (7340)”
Abstract Booster immersion vaccination using hybrid lipid nanoparticle conferred prolonged protective immunity against Aeromonas veronii infection in red tilapia (Oreochromis spp.) Red tilapia (Oreochromis spp.) is a commercially important freshwater species in Thai aquaculture; however, it is highly susceptible to bacterial diseases, particularly haemorrhagic septicaemia, primarily caused by Aeromonas veronii. Vaccination is a widely used […]
“Camera-based reading of group ID with estimation of individual fish outcomes; an innovation for field trials in large-scale salmon net pens (7129)”
Abstract Camera-based reading of group ID with estimation of individual fish outcomes; an innovation for field trials in large-scale salmon net pens We present the main results from a project focused on developing and evaluating a new method for conducting randomised field trials in commercial salmon farming using camera technology and automatic sampling with no […]
“Can stressed fish provoke ‘aggressive’ bacteria? (7312)”
Abstract Can stressed fish provoke ‘aggressive’ bacteria? FUNDING: Research Council of Norway (RCN), project no. 336037 INTRODUCTION: A resurgence of bacterial diseases, involving recognised fish pathogens as well as a few largely uncharacterised species, has occurred across Norwegian sea-based salmon farming in recent years. This trend closely parallels the widespread adoption and frequent use of […]
“Carp as a therapist? (7192)”
Abstract Carp as a therapist? It is not the way that we can stretch on a sofa while the carp is the psychologist. It would be wet anyway. Actually, it is much better. Carp have abilities due to their old fashion immune system which can be used for therapy for bee diseases. One of the […]
“Carp edema virus infection leads to systemic dysbiosis in common carp (7116)”
Abstract Carp edema virus infection leads to systemic dysbiosis in common carp. Introduction: Carp edema virus (CEV) is a highly contagious pathogen affecting common carp (Cyprinus carpio). The virus causes koi sleepy disease (KSD), which is characterized by disturbances of the gill function, resulting in hypoxia, hyponatremia, and hyperammonemia. Our previous studies shown that CEV […]
“Cell classification and characterization of gill-epithelial antigen sampling cell population based on gene expression patterns in rainbow trout (6917)”
Abstract Cell classification and characterization of gill-epithelial antigen sampling cell population based on gene expression patterns in rainbow trout Immersion vaccination drastically reduces the labor cost of vaccination to farmed fish. However, only limited number of immersion vaccine are available in aquaculture. Previously, we showed that gill-epithelial antigen sampling (GAS) cells take up vaccines during immersion, […]
“Cetyltrimethylammonium bromide-based mucoadhesive nano vaccine delivered via immersion enhances mucoadhesion and skin penetration in Striped catfish (Pangasianodon Hypophthalmus) against Edwardsiella Ictaluri (7282)”
Abstract Cetyltrimethylammonium bromide-based mucoadhesive nano vaccine delivered via immersion enhances mucoadhesion and skin penetration in Striped catfish (Pangasianodon Hypophthalmus) against Edwardsiella Ictaluri Edwardsiella ictaluriis a major bacterial pathogen responsible for severe disease outbreaks in striped catfish (Pangasianodon hypophthalmus), resulting in substantial economic losses in aquaculture. Traditional vaccine delivery methods, such as injection and oral administration, […]
“Changes in the helminth fauna and diet of the garfish, Belone belone, from the southern Baltic Sea (6853)”
Abstract Changes in the helminth fauna and diet of the garfish, Belone belone, from the southern Baltic Sea The garfish Belone belone is a pelagic oceanodromous fish found in brackish and marine waters in the eastern North Atlantic Ocean and adjacent seas. In the Polish waters of the southern Baltic Sea, fish occur especially in […]
“Changing Waters, Changing Parasites: Temperature-driven Shifts in Myxozoan Life Cycles (7049)”
Abstract changing waters, changing parasites: temperature-driven shifts in myxozoan life cycles parasites are integral to biodiversity and serve as an indicator for ecological stability, yet their role is often overlooked in conservation efforts. as we face the sixth mass extinction, parasites are not exempt. myxozoans require two hosts – a vertebrate (fish) and an invertebrate […]
“Characterization and host-parasite interactions of Myxobolus n. sp. (Cnidaria: Myxozoa) infecting the gills of a Brazilian bryconid (7169)”
Abstract Characterization and host-parasite interactions of Myxobolus n. sp. (Cnidaria: Myxozoa) infecting the gills of a Brazilian bryconid Myxozoa are a highly diverse group of endoparasitic cnidarians, comprising approximately 2,600 species that infect various tissues and organs of vertebrates, primarily fish. These parasites affect economically important fish species in aquaculture and commercial fishing, such as […]
“Characterization of aeromonas salmonicida subsp. masoucida (asm) and streptococcus parauberis isolated from cultured platichthys stellatus (starry flounder) in south korea (6963)”
Abstract characterization of aeromonas salmonicida subsp. masoucida (asm) and streptococcus parauberis isolated from cultured platichthys stellatus (starry flounder) in south korea aquaculture of starry flounder is increasingly important in south korea. however, as farming expands, mass mortality has risen significantly. while streptococcus parauberishas been recognized as a longstanding pathogen in korean aquaculture, recently, a. […]
“Characterization of Edwardsiella strains isolated from fish in the Netherlands (1995-2020) shows a relationship between Edwardsiella species and source (6964)”
Abstract Characterization of Edwardsiella strains isolated from fish in the Netherlands (1995-2020) shows a relationship between Edwardsiella species and source. Edwardsiella species are motile, facultative anaerobic, rod-shaped Gram-negative bacteria responsible for the disease edwardsiellosis, which leads to mass mortality in various populations and age groups of fish. Furthermore, E. tarda can infect mammals and cause […]
“Characterization of Interleukin-1 Receptor Beta (IL-1Rβ) and Its Immune Response against VHSV Infection in Olive Flounder (Paralichthys olivaceus) (7275)”
Abstract Characterization of Interleukin-1 Receptor Beta (IL-1Rβ) and Its Immune Response against VHSV Infection in Olive Flounder (Paralichthys olivaceus) interleukin-1 receptor beta (il-1rβ) plays a key role in the activation and regulation of immune responses, mediating inflammatory reactions and serving as an important component in the host’s defense mechanisms against infection. il-1rβ is particularly crucial […]
“Characterization of Korean Edwardsiella isolates and development of species-specific identification tools using multiplex qPCR and MALDI-TOF MS (6948)”
Abstract Characterization of Korean Edwardsiella isolates and development of species-specific identification tools using multiplex qPCR and MALDI-TOF MS Edwardsiella species—including E. tarda, E. piscicida, and E. anguillarum—are globally distributed fish pathogens with broad host ranges and significant economic impact. In Korea, accurate species identification has been challenging due to overlapping phenotypic traits and inconsistent diagnostic […]
“Characterization of new viruses isolated from sea bass fingerlings showing atypical clinical signs (6931)”
Abstract Characterization of new viruses isolated from sea bass fingerlings showing atypical clinical signs Introduction Sea bass is a major reared fish species regarding Mediterranean aquaculture. The first life stages, very sensitive to sanitary and environmental conditions, are particularly monitored in hatcheries. In this work, we characterized new viral agents recently isolated in a hatchery […]
“Characterization of viperin in Haliotis discus hannai using transcriptomic analysis after poly(I:C) stimulation (7277)”
Abstract Characterization of viperin in Haliotis discus hannai using transcriptomic analysis after poly(I:C) stimulation Introduction: Viperin is an interferon-inducible antiviral protein known for its role in innate immune responses in vertebrates. However, its function and expression dynamics in mollusks, particularly in Haliotis discus hannai (Pacific abalone), remain poorly understood. This study aimed to characterize the […]
“Chasing the plague, one passive filter at a time (7052)”
Abstract Chasing the plague, one passive filter at a time Environmental DNA (eDNA) is a rapidly advancing, powerful sampling tool that enables the detection of a species of interest and holds immense potential as a tool for large-scale disease monitoring programs in both freshwater and marine environments. It provides a non-invasive alternative to traditional field […]
“Chlorella vulgaris aquafeed supplementation as microbiota-gut-brain axis modulator in Dicentrarchus labrax (7229)”
Abstract Chlorella vulgaris aquafeed supplementation as microbiota-gut-brain axis modulator in Dicentrarchus labrax Introduction: Aquaculture holds considerable potential to contribute to food security by meeting the nutritional requirements of the growing population worldwide and supporting the transition to healthier oceanic and freshwater ecosystems. It is expected to drive continued growth in global fish production, providing a […]
“Chloromyxum dasyatidis (Myxosporea: Chloromyxidae) a parasite of the common stingray Dasyatis pastinaca (L.) from Tunisian waters (7076)”
Abstract Chloromyxum dasyatidis (Myxosporea: Chloromyxidae) a parasite of the common stingray Dasyatis pastinaca (L.) from Tunisian waters The present study, aims to describe a new marine coelozoic Chloromyxum species, based on morphological, ultrastructural, and molecular features. Phylogenetic analyses were performed for analysing the relationship of the new species with the existing marine Chloromyxum spp. from […]
“Circulating MicroRNAs: Indicators of immune response of European seabass (Dicentrarchus labrax) (7372)”
Abstract Circulating MicroRNAs: Indicators of immune response of European seabass (Dicentrarchus labrax) A rapidly emerging body of research has focused on circulating microRNAs (miRNAs) as non-lethal biomarkers in teleost fish. One of the earliest studies examined the association between circulating miRNAs and vitamin K levels in the Senegalese sole (Solea senegalensis), with a particular focus […]
“Clash of sea titans: Swordfish vs. Blue Shark. Forensic evidence of a double stabbing event (7146)”
Abstract Clash of sea titans: Swordfish vs. Blue Shark. Forensic evidence of a double stabbing event Attacks of swordfish (Xiphias gladius) on sharks and mainly in blue sharks (Prionace glauca) are becoming more frequently reported, mainly in the Mediterranean. In February 2025, an adult male blue shark stranded alive in a beach in the coast […]
“Classification of post-delousing mortality in farmed atlantic salmon: a case study (7046)”
Abstract classification of post-delousing mortality in farmed atlantic salmon: a case study introduction mechanical delousing, a common practice in norwegian salmon farming, is frequently reported as a significant cause of mortality. however, there is limited knowledge about the accuracy and quality of causal mortality recordings for these operations. this study aimed to identify the underlying […]
“Clinical and histopathological findings in Atlantic salmon (Salmo salar) infected with a novel species of Piscirickettsia (7047)”
Abstract Clinical and histopathological findings in Atlantic salmon (Salmo salar) infected with a novel species of Piscirickettsia Introduction Piscirickettsiosis, or salmonid rickettsial septicaemia (SRS), has emerged as a priority health challenge in marine stage farmed Atlantic salmon (Salmo salar) in Ireland and Scotland. Although the disease has been described in both countries since the early […]
“Clinical presentation and pathological effects of a hydrozoan bloom on farmed atlantic salmon (7239)”
Abstract clinical presentation and pathological effects of a hydrozoan bloom on farmed atlantic salmon Introduction Gelatinous plankton blooms, though largely unpredictable, are an increasing concern for the rapidly growing mariculture industry. In July 2023, a bloom of the colonial hydrozoan Apolemia sp. was first detected in mid-Norway through the citizen science platform Nye.dugnadforhavet.no. By November, […]
“Cockle health in the UK: a case study for the implementation of holistic investigative approaches to explain complex mortalities and long-term population declines (7202)”
Abstract Cockle health in the UK: a case study for the implementation of holistic investigative approaches to explain complex mortalities and long-term population declines Introduction: Cerastoderma edule (C.edule) populations of the Wash estuary embayment in eastern-England, UK have suffered long-term declines linked to recurrent annual mortalities. Essential to local fisheries, and wildlife populations, Wash cockle […]
“Coinfection process with tenacibaculosis caused by Tenacibaculum spp.: first report on Atlantic salmon (Salmo salar L.) microbiome from Chilean salmon farms (6885)”
Abstract Coinfection process with tenacibaculosis caused by Tenacibaculum spp.: first report on Atlantic salmon (Salmo salar L.) microbiome from Chilean salmon farms Tenacibaculosis is an ulcerative, external disease caused by various bacterial species of the Tenacibaculum genus, collectively referred to as the “Tenacibaculum Complex.” It represents the second leading cause of mortality in Atlantic salmon […]
“Common issues in reporting parasitic diseases in farmed fish (6283)”
Abstract Common issues in reporting parasitic diseases in farmed fish Introduction Outbreaks of parasitic diseases on fish farms can affect the health of the fish and increase the costs of fish production. Reporting parasitic diseases in farmed fish is essential, it increases our knowledge and contributes to assessing the risks of disease outbreaks and developing […]
“Comparative analysis of responses to early-stage sea lice (Lepeophtheirus salmonis,(Krøyer, 1837)) infection reveals inter- and intraspecies resistance mechanisms” (7256)
Abstract Comparative analysis of responses to early-stage sea lice (Lepeophtheirus salmonis,(Krøyer, 1837)) infection reveals inter- and intraspecies resistance mechanisms Introduction: Infection of salmonid fish with sea lice Lepeophtheirus salmonis is ubiquitous; however, interspecies variation in host response and susceptibility is well documented whereby coho salmon (Oncorhynchus kisutch) are fully resistant to lice. Although infectious copepodids […]
“Comparative assessment of Great Lakes salmonids pathobiology upon Tetracapsuloides bryosalmonae infection ” (7349)
Abstract Comparative assessment of Great Lakes salmonids pathobiology upon Tetracapsuloides bryosalmonae infection Introduction The geographic distribution of the myxozoan Tetracapsuloides bryosalmonae (Malacosporea) in North America is being reconsidered, following our recent discovery that this parasite may be infecting a variety of salmonids across the Great Lakes watershed. Asymptomatic fishes with low parasite burdens are found […]
“Comparative CyHV-3 susceptibility evaluation in invasive Asian carp species using new cell lines (7360)”
Abstract Comparative CyHV-3 susceptibility evaluation in invasive Asian carp species using new cell lines Introduction Highly invasive Asian carp species are spreading through North America, getting closer to invade the Great Lakes basin, posing relevant threats to the regional ecology and economy. These invasive fish species could potentially act as a new reservoir of aquatic […]
“Comparative evaluation of cationic lipid-based nano vaccines for immersion vaccination against flavobacterium oreochromis in red tilapia (Oreochromis SP.) (7296)”
Abstract Comparative evaluation of cationic lipid-based nano vaccines for immersion vaccination against flavobacterium oreochromis in red tilapia (Oreochromis SP.) Center of Excellence in Wildlife, Exotic, and Aquatic Animal Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand Authors Kitiyodom, Sirikorn, Center of Excellence in Wildlife, Exotic, and Aquatic Animal Pathology, Faculty of Veterinary Science, […]
“Comparative evaluation of qPCR performed by local fish health services using small-scale equipment and kits (7177)”
Abstract Comparative evaluation of qPCR performed by local fish health services using small-scale equipment and kits During the Covid-19 epidemic, novel, small scale equipment and kits for performing quantitative PCR tests were developed and used in local testing, especially in Asian countries. In collaboration with an Asian kit supplier and 3 fish health services, we […]
“Comparative Gene Expression and Viral Load Analysis in Distinct Carp Groups Infected with Koi Herpes Virus (KHV) (7314)”
Abstract Comparative Gene Expression and Viral Load Analysis in Distinct Carp Groups Infected with Koi Herpes Virus (KHV) anju sebastian1*, mikolaj adamek2, ehdaa eltayeb eltigani abdelsalam1, anna martyrosyan1, ľubomír pojezdal3, kateřina matějíčková3, veronika piačková1 1university of south bohemia in české budějovice, faculty of fisheries and protection of waters, south bohemian research center of aquaculture and […]
“Comparison of Initial Immune Responses among Six Salmonid Species Inoculated with PolyI:C (6981)”
Abstract Comparison of Initial Immune Responses among Six Salmonid Species Inoculated with PolyI:C Introduction: During infection, various responses are induced to eliminate the pathogen. In this study, we aimed to identify antiviral responses commonly important across salmonid species. For comparison across salmonid species, we selected six salmonid species in four different genera and examined gene […]
“Comparison of ISAV-HPR deleted strains for presumed variable virulence in Atlantic salmon using standardised bath challenge (7285)”
Abstract Comparison of ISAV-HPR deleted strains for presumed variable virulence in Atlantic salmon using standardised bath challenge Introduction: Infectious salmon anaemia (ISA) is a serious infectious disease of Atlantic salmon caused by the orthomyxovirus Isavirus salaris. The mortality observed in ISA outbreaks vary widely, but variable environmental and host factors make it difficult to ascertain […]
“Comparison of mortality cause assignments between fish health personnel and farmer recordings (7048)”
Abstract comparison of mortality cause assignments between fish health personnel and farmer recordings introduction high mortality is one of the biggest issues in norwegian salmon farming. understanding why and when salmon die during production is crucial for improving fish health and reducing mortality. mortalities are categorized daily by salmon farmers in norway, but the quality […]
“Complete Genome Analysis of a Novel Lymphocystivirus Originating from Orbicular Batfish (Platax orbicularis) (7222)”
Abstract Complete Genome Analysis of a Novel Lymphocystivirus Originating from Orbicular Batfish (Platax orbicularis) Lymphocystiviruses are large dsDNA viruses belonging to the genus Lymphocystivirus within the family Iridoviridae. Lymphocystis disease virus (LCDV) is the causative agent of lymphocystis disease (LCD), a chronic but typically non-lethal condition, which reported to affect a wide range of teleost […]
“Completing the life cycle of Myxobolus tihanyensis (Cnidaria, Myxozoa) by molecular evidence (7017)”
Abstract Completing the life cycle of Myxobolus tihanyensis (Cnidaria, Myxozoa) by molecular evidence Myxozoans represent a diverse group of parasitic cnidarians that display a complex life cycle alternating between two different spore types in two different hosts: the myxospore type infecting a vertebrate host and the actinospore type infecting an invertebrate host. In the present […]
“Continuing education must drive food security for all (7140)”
Abstract Continuing education must drive food security for all Dr Pierre Cadot*, Dr Alexandre Beljean World Veterinary Education in Production Animal Health 9, bd du jazz l-4370 Belvaux Luxembourg pierre.cadot@wvepah.org WVEPAH trains and certifies animal production professionals in poultry, aquaculture, and swine who work closely with producers. these experts work in the private or public […]
“Creating a primary cell platform from CRISPR/Cas edited Atlantic salmon (Salmo salar) alevin tissue (6903)”
Abstract Creating a primary cell platform from CRISPR/Cas edited Atlantic salmon (Salmo salar) alevin tissue Introduction Salmonids are the third most farmed fin fish species. And while the industry keeps growing, a variety of different pathogens continue to threaten its sustainability. Gene manipulation is quickly becoming a reliable way of studying gene function and disease […]
“Cross protection efficacy test of an inactivated multivalent immersion vaccine against an intraperitoneal experimental challenge with Yersinia Ruckeri of different serotypes in Salmo salar (6895)”
Abstract Cross protection efficacy test of an inactivated multivalent immersion vaccine against an intraperitoneal experimental challenge with Yersinia Ruckeri of different serotypes in Salmo salar Introduction Since the introduction and dissemination of Yersinia ruckeri into the Atlantic salmon, vaccines have been traditionally based on antigens from O1 serotype. However, since the discovery that a wider […]
“Cross-national genomic surveillance of viral pathogens to support disease control in Atlantic salmon aquaculture (7014)”
Abstract Cross-national genomic surveillance of viral pathogens to support disease control in Atlantic salmon aquaculture Introduction Viral disease outbreaks threaten the sustainability of salmonid aquaculture, resulting in economic losses and strong concerns for fish welfare. Coupling viral whole genome sequencing with epidemiological approaches can inform on disease transmission pathways, which may support control measures. This […]
“Cross-reactivity of a monoclonal antibody against CD4-2 in ginbuna crucian carp with lymphocytes from other cyprinids: common carp, grass carp and zebrafish (7004)”
Abstract Cross-reactivity of a monoclonal antibody against CD4-2 in ginbuna crucian carp with lymphocytes from other cyprinids: common carp, grass carp and zebrafish The CD4 molecule is a cell surface marker of helper T (Th) cells, which plays an essential role in the adaptive immune system in mammals. In teleost fish, two types of CD4 […]
“Current status of vaccination against lactococcosis in Australian farmed salmonids” (6947)
Abstract Current status of vaccination against lactococcosis in Australian farmed salmonids Rainbow trout aquaculture in the southeastern states of Australia is heavily impacted by recurrent disease outbreaks caused by Lacotococcosis, often associated with seasonal rise in temperature accompanying high feed rates, and/or flooding. There are currently three bacterial species recognised as causative agents of lactococcosis […]
“Cytopathology and phylogeny of Pinna nobilis Picornavirus (PnPV) from the Faro Lake (Southern Italy) (7043)”
Abstract Cytopathology and phylogeny of Pinna nobilis Picornavirus (PnPV) from the Faro Lake (Southern Italy) Introduction Pinna nobilis Picornavirus (PnPv) is an RNA virus that proliferates in the immune cells of Pinna nobilis. As part of the LIFE PINNARCA project, this study was conducted to assess the health of the Pinna nobilis population in Lake […]
“Dams and reservoirs trigger temperature-dependent disease (7232)”
Abstract Dams and reservoirs trigger temperature-dependent disease Dams are ubiquitous in river systems, providing essential services such as drinking water, electricity and irrigation to human society. At the same time, dams significantly impact ecosystems by disrupting flow, and altering natural water temperature regimes. Here, we describe a novel, unappreciated threat posed by dams and reservoirs […]
“Decay of Infectious Salmon Anemia Virus (ISAV) infectivity in raw seawater (7199)”
Abstract Decay of Infectious Salmon Anemia Virus (ISAV) infectivity in raw seawater Infectious salmon anaemia virus (ISAV), a single-stranded, enveloped RNA virus of the Orthomyxoviridae family, poses a significant challenge to salmon aquaculture in Norway. Accurately determining ISAV decay rates under different seawater conditions is crucial for improving disease-prevention and management strategies. Previous studies have […]
“Deciphering mechanism of petechial skin rash in Gilthead seabream and European seabass (7148)”
Abstract Deciphering mechanism of petechial skin rash in Gilthead seabream and European seabass Introduction Petechial skin lesions frequently affect gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax) during seasonal transitions in the Mediterranean, likely due to environmental stressors such as temperature and water quality fluctuations. These superficial haemorrhagic lesions impact skin and fins, causing […]
“Decrease in abundance ratio of gill-epithelial antigen sampling (GAS) cells along with sexual maturation (6908)”
Abstract Decrease in abundance ratio of gill-epithelial antigen sampling (GAS) cells along with sexual maturation During immersion vaccination, gill-epithelial antigen sampling (GAS) cells uptake bacterins, degrade them in the cytoplasm and present antigens to T cells for induction of local immune responses in the gills of rainbow trout. In previous studies, we observed highly varied […]
“Deep impact: welfare of Atlantic salmon in marine, closed confinement systems at different stocking densities (7062)”
Abstract Deep impact: welfare of Atlantic salmon in marine, closed confinement systems at different stocking densities Closed cages offer the potential to solve some of the most significant challenges in large scale marine farming of Atlantic (A.) salmon (Salmo salar). The most immediate benefit is the effective prevention of sea lice infestation, thereby reducing the […]
“Description of multivalvulidan myxosporean parasites infecting marine fishes caught from Angolan waters (7205)”
Abstract Description of multivalvulidan myxosporean parasites infecting marine fishes caught from Angolan waters Multivalvulida myxosporeans of the genera Kudoa Meglitsch, 1947 and Unicapsula Davis, 1924 are commonly histozoic parasites of skeletal muscle of the estuarine and marine fishes [1]. They have been associated with post-mortem liquefaction of the muscles causing milky flesh and economic losses […]
“Designing nanoformulations for the delivery of peptidase-sensitive antimicrobial against fish bacterial infections (7318)”
Abstract Designing nanoformulations for the delivery of peptidase-sensitive antimicrobial against fish bacterial infections Introduction: Anisaxin-2S (A-2S) is a cecropin antimicrobial peptide (AMP) isolated from the zoonotic nematodes Anisakis simplex and A. pegreffii. While it has shown high potency against Gram-negative bacteria from both marine and terrestrial environments, including the multidrug resistant strains, a preliminary pharmacokinetic […]
“Detecting the myxozoan parasite Tetracapsuloides bryosalmonae though highly invasive dreissenid mussels (7368)”
Abstract Detecting the myxozoan parasite Tetracapsuloides bryosalmonae though highly invasive dreissenid mussels Introduction The Great Lakes watershed was recently invaded by Zebra (Dreissena polymorpha) and Quagga (D. bugensis) mussels. Reproducing and growing fast, they became widespread across large and small lakes and rivers in North America, altering ecosystems and threatening local freshwater fisheries. Dreissenid mussels […]
“Detection of Acipenserid Herpesvirus type 2 (AciHV-2) in Italian Sturgeon Farms (7182)”
Abstract Detection of Acipenserid Herpesvirus type 2 (AciHV-2) in Italian Sturgeon Farms Introduction Sturgeon farming for caviar production is rapidly expanding in Europe. Italy is the European leader country in the sector with a caviar output of 65 tons per year and it is second in worldwide market only to China. Although sturgeons are considered […]
“Detection of Epitheliocystis in wild mediterranean fish species: a preliminary survey (7337)”
Abstract DETECTION OF EPITHELIOCYSTIS IN WILD MEDITERRANEAN FISH SPECIES: A PRELIMINARY SURVEY Introduction Epitheliocystis is a widespread disease affecting the gills of both wild and farmed fish globally. The disease is characterized by the development of cysts containing intracellular bacteria that are replicated within host cells. The aim of this study is to detect and […]
“Detection of Nnv Persistent Infection in Greater Amberjack Broodstock Gonad Shows a Sex-dependent Immune Response (7074)”
Abstract DETECTION OF NNV PERSISTENT INFECTION IN GREATER AMBERJACK BROODSTOCK GONAD SHOWS A SEX-DEPENDENT IMMUNE RESPONSE DETECTION OF NNV PERSISTENT INFECTION IN GREATER AMBERJACK BROODSTOCK GONAD SHOWS A SEX-DEPENDENT IMMUNE RESPONSE Laura Cervera1,2, Daniel Álvarez-Torres3, Julia Béjar3, Alberto Cuesta2, Virginia Martín4, Salvador Jérez4, Elena Chaves-Pozo1* 1 COMU-IEO, CSIC, Spain 2 University of Murcia, Spain 3 […]
“Developing mRNA vaccines for Atlantic salmon (7093)”
Abstract Developing mRNA vaccines for Atlantic salmon Introduction Infectious diseases are a major problem in the fish farming industry. As over 400 million salmon are vaccinated annually in Norway, the high mortality rates indicate that the current vaccines are not efficient enough, and vaccines have not been developed for some diseases. A new and improved […]
“Development and Evaluation of a Recombinant Protective Antigen-Based Vaccine Against Bacillus cereus Infection in Asian Sea Bass (Lates calcarifer) (6693)”
Abstract Development and Evaluation of a Recombinant Protective Antigen-Based Vaccine Against Bacillus cereus Infection in Asian Sea Bass (Lates calcarifer) This study aimed to develop a vaccine for Asian sea bass (Lates calcarifer) infected with Bacillus cereus group (Bcg), a pathogenic bacterium known to cause severe septicemia, ultimately leading to significant economic losses in commercial […]
“Development and evaluation of an oral vaccine for protection against red seabream iridovirus (RSIV) in barramundi (Lates calcarifer) (7136)”
Abstract Development and evaluation of an oral vaccine for protection against red seabream iridovirus (RSIV) in barramundi (Lates calcarifer) Red seabream iridovirus (RSIV) is an important fish viral pathogen that infects more than 30 species of cultured marine fish and has caused severe economic losses in barramundi (Lates calcarifer) aquaculture in Asia. Vaccination is an […]
“Development and validation of a multiplex RT-PCR assay for the simultaneous detection of three major viral pathogens in salmonids, IHNV, ISAV and SAV (7084)”
Abstract Development and validation of a multiplex RT-PCR assay for the simultaneous detection of three major viral pathogens in salmonids, IHNV, ISAV and SAV Infectious hematopoietic necrosis virus (IHNV), infectious salmon anaemia virus (ISAV), and salmon alphavirus (SAV) are significant pathogens responsible for severe infections in salmonid species and are classified as notifiable diseases by […]
“Development of a cross-protective bivalent glycovaccine against antimicrobial-resistant Streptococcus agalactiae and Streptococcus iniae for Finfish Aquaculture (7421)”
Abstract Development of a cross-protective bivalent glycovaccine against antimicrobial-resistant Streptococcus agalactiae and Streptococcus iniae for Finfish Aquaculture Introduction In low- and middle-income countries, aquaculture is a significant commercial commodity and a prospective source of food and livelihood. Streptococcus agalactiae and Streptococcus iniae, the major antimicrobial resistance (AMR) pathogens and causative agents for disease outbreaks inIndia […]
“Development of a Real-Time Recombinant Polymerase Amplification (RPA) assay for the sensitive, rapid detection of Spring Viremia of Carp Virus (SVCV) (7342)”
Abstract Development of a Real-Time Recombinant Polymerase Amplification (RPA) assay for the sensitive, rapid detection of Spring Viremia of Carp Virus (SVCV) Introduction: Infection with the rhabdovirus Spring Viremia of Carp Virus (SVCV) can cause serious disease in cyprinids, posing a significant threat to aquaculture. Currently, the World Organisation for Animal Health (WOAH) recommends tissue […]
“Development of a recombinant S4 protein and nanoparticle-based vaccine for Tilapia Lake virus (6285)”
Abstract Development of a recombinant S4 protein and nanoparticle-based vaccine for Tilapia Lake virus Tilapia lake virus (TiLV) disease is a highly contagious infection causing significant mortality in tilapia, with no effective treatments or commercial vaccines currently available. This study aimed to develop a recombinant protein-based approach for vaccine development. TiLV segment 4 (S4) was […]
“Development of a Vaccine Against Pasteurella atlantica: Addressing Emerging Health Challenges in Norwegian Salmon Aquaculture (7143)”
Abstract Development of a Vaccine Against Pasteurella atlantica: Addressing Emerging Health Challenges in Norwegian Salmon Aquaculture Pasteurella atlantica is an emerging pathogen in Norwegian salmon aquaculture, with increasing outbreaks and severity since 2018. Fish health biologists and aquaculture farmers emphasize the urgent need for vaccination to control this disease, which manifests as blood-filled blisters in […]
“Development of an Auxotrophic Transformed Chlorella for Environmental Safety in Recombinant protein Production (6997)”
Abstract Development of an Auxotrophic Transformed Chlorella for Environmental Safety in Recombinant protein Production Human erythropoietin (hEPO) is a glycosylated cytokine that stimulates erythropoiesis and is widely used to treat anemia and chronic kidney disease (CKD), with additional therapeutic potential in diabetes due to its blood glucose-lowering effects. Currently, hEPO is primarily produced in Chinese […]
“Development of an mRNA-lipid nanoparticle vaccine against infectious salmon anemia (7002)”
Abstract Development of an mRNA-lipid nanoparticle vaccine against infectious salmon anemia Introduction: mRNA vaccines demonstrated strong prophylactic efficacy against SARS-CoV-2 infections during the COVID-19 pandemic, which increased the interest for applying this technology to fight other viral diseases. Recently, we tested and confirmed the principle of mRNA vaccination in lipid nanoparticles (LNP) in Atlantic salmon […]
“Development of animal health models for emerging pathogens in European sea bass (dicentrarchus labrax) in the mediterranean (7587)”
Abstract DEVELOPMENT OF ANIMAL HEALTH MODELS FOR EMERGING PATHOGENS IN EUROPEAN SEA BASS (Dicentrarchus labrax) IN THE MEDITERRANEAN Bacterial diseases pose a major challenge in Mediterranean aquaculture, particularly due to the emergence of new pathogens. Among these, Aeromonas species have been frequently linked to disease outbreaks in marine fish. In recent years, Aeromonas veronii has […]
“Development of Cyprinid herpesvirus-2 detection with CRISPR-Cas 12a system (7274)”
Abstract Development of Cyprinid herpesvirus-2 detection with CRISPR-Cas 12a system Cyprinid herpesvirus-2 (CyHV-2), a member of the Alloherpesviridae family, is a significant pathogen impacting ornamental goldfish (Carassius auratus), especially in low water temperatures (<27°C). Due to the potential for latent infections and international transmission, a rapid and specific diagnostic tool is essential. This study reports […]
“Development of good practice guidelines for on-farm production of antibiotic-coated feed in aquaculture (7031)”
Abstract Development of good practice guidelines for on-farm production of antibiotic-coated feed in aquaculture Introduction Oral administration via medicated feed remains the primary method of drug delivery in farmed fish. However, access to medicated feed is often limited due to small quantities required, insufficient for production by an approved feed operator, or due to delivery […]
“Development of New Vaccines Against T. finnmarkense in Salmon in Norway (7174)”
Abstract Development of New Vaccines Against T. finnmarkense in Salmon in Norway Tenacibaculosis is a disease that causes skin ulcers and mouth erosions in Atlantic salmon. This disease, caused by members of the relatively newly discovered bacterial genus Tenacibaculum, has gained increasing attention as a disease agent over the past 10–15 years. Today, it is […]
“Development of oral vaccines for aquaculture using spore-display technology (7236)”
Abstract development of oral vaccines for aquaculture using spore-display technology Oral vaccines are highly demanded by the aquaculture sector to allow mass delivery of antigens. Despite this, most commercially available vaccines are injectable, being labor-intensive, expensive, and require individual handling of fish.One possible strategy to create injection-free vaccine delivery vehicles is the use of bacterial spores,extremely […]
“Development of point of need diagnostic methods for detection of bonamia ostreae using in-field nucleotide sequencing (7112)”
Abstract development of point of need diagnostic methods for detection of bonamia ostreae using in-field nucleotide sequencing Introduction Populations of the European flat oyster (Ostrea edulis) have been declining globally due to overexploitation and diseases caused by parasites such as Bonamia ostreae. While technological advances have significantly improved the detection and identification of this pathogen […]
“Development of SYBR Green-based real-time PCR assays for detection of infectious haematopoietic necrosis virus (IHNV) (7085)”
Abstract Development of SYBR Green-based real-time PCR assays for detection of infectious haematopoietic necrosis virus (IHNV) The risk of introducing unreported genotypes of infectious haematopoietic necrosis virus (IHNV) into South Korea has increased due to the global expansion of aquaculture and the international movement of live fish and eyed eggs. Although real-time PCR using TaqMan […]
“Development of SYBR Green-based real-time PCR assays for detection of salmonid alphavirus (SAV) (7086)”
Abstract Development of SYBR Green-based real-time PCR assays for detection of salmonid alphavirus (SAV) With the intensification of international trade and diversification of salmonid aquaculture, the risk of introducing unreported genotypes of Salmonid alphavirus (SAV) into South Korea has substantially increased. Although South Korea was officially declared free from SAV in 2023, the ongoing emergence […]
“Dietary administration of Shewanella putrefaciens Pdp11 extracts modulates gene expression of RGNNV-infected European sea bass (6992)”
Abstract Dietary administration of Shewanella putrefaciens Pdp11 extracts modulates gene expression of RGNNV-infected European sea bass Introduction Viral encephalopathy and retinopathy is a neurological disease, caused by the nervous necrosis virus, that provokes high mortalities in cultured sea bass (Dicentrarchus labrax). As a prophylactic measure, our previous studies explored the use of food supplemented with […]
“Dietary administration of the host defense peptide piscidin 1 modulates immunity and improve fillet quality in gilthead seabream (Sparus aurata) (6896)”
Abstract Dietary administration of the host defense peptide piscidin 1 modulates immunity and improve fillet quality in gilthead seabream (Sparus aurata) Host-defense peptides (HDPs) represent promising candidates for functional and therapeutic applications. Nevertheless, their oral administration is constrained by issues of instability and undesirable organoleptic properties [1]. In this study, we encapsulated piscidin 1 (P1) […]
“Dietary efficacy of immune modulator during cold stress in the Mediterranean species gilthead seabream (Sparus aurata) (6962)”
Abstract Dietary efficacy of immune modulator during cold stress in the Mediterranean species gilthead seabream (Sparus aurata) Gilthead seabream (Sparus aurata) is frequently affected by seasonal stress in Mediterranean aquaculture, particularly when water temperatures fall below 15 °C or rise above 30 °C. The cold-water condition, commonly known as winter syndrome, leads to metabolic depression, reduced feed […]
“Dietary EPA and DHA boost viral disease resistance in Atlantic Salmon (Salmo salar) (7216)”
Abstract Dietary EPA and DHA boost viral disease resistance in Atlantic Salmon (Salmo salar) Viral diseases represent a major health and economic challenge in global salmonid aquaculture. Diseases such as cardiomyopathy syndrome (CMS), heart and skeletal muscle inflammation (HSMI), jaundice syndrome, and pancreas disease (PD) have led to substantial losses and compromised fish welfare. Numerous […]
“Dietary Supplementation with Euglena gracilis Enhances Mucosal Immune Responses in Fish (7348)”
Abstract Dietary Supplementation with Euglena gracilis Enhances Mucosal Immune Responses in Fish Introduction: The aquaculture industry is rapidly expanding due to global population growth and increasing consumer acceptance of farmed fish. However, disease outbreaks remain a major constrain, often exacerbated by the aquatic environment. To address and overcome this challenge, the scientific community is seeking […]
“Disinfection efficacy of Chlorhexidine Gluconate Against Pathogenic Bacteria Infecting Salmonids (7113)”
Abstract Disinfection efficacy of Chlorhexidine Gluconate Against Pathogenic Bacteria Infecting Salmonids HW Kim*, ES Lee, JY Yoon, SR Kwon Sunmoon University, Asan, South Korea Introduction The recent introduction of Atlantic salmon (Salmo salar) aquaculture in South Korea underscores an urgent need for effective bacterial disease control strategies. Such diseases persist as significant and costly problems […]
“Distribution and abundance of fish parasites in environmental water samples before a major river restoration event (7367)”
Abstract Distribution and abundance of fish parasites in environmental water samples before a major river restoration event After 100 years of impeding anadromous fish migration in the Klamath River (USA), the largest dam removal event in the world is now complete. The dams affected river flow and temperature, and altered the host-parasite balance in the […]
“Distribution of Anisakis species from Atlantic horse mackerel (Trachurus trachurus) in the Portuguese coast: an update (7287)”
Abstract Distribution of Anisakis species from Atlantic horse mackerel (Trachurus trachurus) in the Portuguese coast: an update Introduction: Third-stage larvae of the genus Anisakis (Nematoda: Anisakidae) parasitize the viscera and muscles of fish and have been associated with human anisakiasis due to the consumption of raw or undercooked infected fishery products. The traditionally high fish […]
“Diverse lineages of Piscine orthoreovirus (PRV) in Icelandic salmonids (7154)”
Abstract Diverse lineages of Piscine orthoreovirus (PRV) in Icelandic salmonids Introduction: Piscine orthoreovirus (PRV) is associated with persistent heart and skeletal muscle inflammation (HSMI) in multiple salmonid species, affecting both wild and farmed populations globally. The chronic nature of this disease has significant implications for ecosystem health, animal welfare, and economic losses in aquaculture. In […]
“Diversity and Antimicrobial Resistance of Yersinia ruckeri in Great Britain (7291)”
Abstract Diversity and Antimicrobial Resistance of Yersinia ruckeri in Great Britain Background While Yersinia ruckeri is mostly well managed using vaccines in the farmed trout sector, it has shown capacity to develop resistance to antibiotics and to escape current vaccines. To combat these challenges to disease management in Great Britain (GB), the diversity and antimicrobial […]
“Diversity and significance of Y. ruckeri isolates from German fish farms (7040)”
Abstract Diversity and significance of Y. ruckeri isolates from German fish farms Introduction:Yersiniaruckeri, the causative agent of (Enteritic Red Mouth Disease), causes acute and in some cases chronic chronic diseases in fish (especially salmonids: e.g. trout) and can lead to enormous economic losses in fish farms. In addition to specific diagnostics for pathogen detection, information […]
“Diversity of Tenacibaculum species from Atlantic salmon from selected fish farms on the West coast of Norway (7301)”
Abstract Diversity of Tenacibaculum species from Atlantic salmon from selected fish farms on the West coast of Norway. Mustapha Lamkhanat*, Henning Sørum and Stephen Mutoloki. NMBU Faculty of Veterinary Medicine Tenacibaculosis is a bacterial ulcerative disease that poses a significant threat to marine fish in aquaculture globally, particularly affecting farmed salmonids due to infections from […]
“Does timing matter: effects of β-glucan supplementation duration on the gut microbiome and health of juvenile nile tilapia (7245)”
Abstract does timing matter: effects of β-glucan supplementation duration on the gut microbiome and health of juvenile nile tilapia supplementing fish diet with prebiotics, e.g., β-glucans, has been used as an alternative to antibiotic treatment to boost the non-specific immune system and modulate the gut microbiota profile, thereby enhancing gut mucosal health and improving resistance […]
“Early juvenile ayu can survive in Plecoglossus altivelis poxvirus infection and acquire immunity (6920)”
Abstract Early juvenile ayu can survive in Plecoglossus altivelis poxvirus infection and acquire immunity Atypical cellular gill disease (ACGD) in ayu Plecoglossus altivelis caused by P. altivelis poxvirus (PaPV) infection has led to significant economic losses in aquaculture. Ayu is an amphidromous fish with a one-year life cycle. It is known from experience that ACGD […]
“Ecological, genomic and virulence insights into Vibrio aestuarianus cardii: A pathogen of cockles (7100)”
Abstract Ecological, genomic and virulence insights into Vibrio aestuarianus cardii: A pathogen of cockles Introduction: Understanding the genomic diversity and population structure of pathogenic bacteria is crucial for elucidating their evolutionary trajectories, ecological niches and virulent potential. Vibrio aestuarianus cardii, a recently described subspecies, has caused recurring mortality events in cockle (Cerastoderma edule) populations along […]
“eDNA metabarcoding reveals effects of intensive aquaculture on aquatic parasite diversity (7223)”
Abstract eDNA metabarcoding reveals effects of intensive aquaculture on aquatic parasite diversity Introduction: Understanding biodiversity at the species and genetic levels remains a key challenge in ecological research, especially for microscopic fish parasites such as myxozoans, aquatic microsporidians, and amphizoic amoebae. Freshwater ecosystems are increasingly threatened by anthropogenic pressures, from habitat degradation to climate change, […]
“Effect of different biosecurity measures on pathogens in commercial land based RAS facilities (7204)”
Abstract Effect of different biosecurity measures on pathogens in commercial land based RAS facilities Introduction: Disease outbreaks and the presence of pathogenic microorganisms in RAS (Recirculating Aquaculture Systems) can result in a number of challenges and lead to fish mortality and reduced fish welfare in the current fish population and in later life stages. There […]
“Effect of disinfectants on water quality and colonization of fish by infectious organisms (7009)”
Abstract EFFECT OF DISINFECTANTS ON WATER QUALITY AND COLONIZATION OF FISH BY INFECTIOUS ORGANISMS Parasites and bacteria are common causes of disease and may be one of the factors slowing down the current development of aquaculture. Preventive water disinfection eliminates dangerous pathogens and residual disinfectant concentrations should be used to treat fish for external parasitic […]
“Effect of fallowing and other biosecurity measures on bacterial and viral pathogens in a controlled RAS experiment with Atlantic salmon (7134)”
Abstract Effect of fallowing and other biosecurity measures on bacterial and viral pathogens in a controlled RAS experiment with Atlantic salmon Introduction The introduction or presence of pathogenic microorganisms in Recirculating Aquaculture Systems (RAS) may result in disease outbreaks leading to fish mortality and reduced fish welfare in general, both in the current fish population […]
“Effect of RAS and Seawater Transfer on the Gut Microbiome and Farming Performance of Atlantic Salmon (7218)”
Abstract Effect of RAS and Seawater Transfer on the Gut Microbiome and Farming Performance of Atlantic Salmon Introduction: Our results highlighted lifestage–dependent changes in gut microbiome. Meanwhile, association between microbiota profiles and fish size suggests a potential link to performance. Further research is currently under progress to clarify how microbiota composition relates to other biological factors; […]
“Effect of replacement of soybean meal with silkworm pupae on growth performance and physiological responses of Pangasius pangasius (6959)”
Abstract Effect of replacement of soybean meal with silkworm pupae on growth performance and physiological responses of Pangasius pangasius The rising cost of fish meal and soybean meal for aquafeeds has encouraged researchers to look for alternative protein sources. To find an alternative this study was designed to replace soybean meal with silkworm pupae meal. An experimental […]
“Effect of Simulated Gastric Conditions on Yersinia ruckeri Survival and Host-Pathogen Interaction with Salmonid Intestinal Epithelial Cells In Vitro (7092)”
Abstract Effect of Simulated Gastric Conditions on Yersinia ruckeri Survival and Host-Pathogen Interaction with Salmonid Intestinal Epithelial Cells In Vitro Understanding how pathogens survive gastric conditions is vital for developing effective oral vaccines and vaccine delivery in aquaculture. However, survival, infectivity and immunogenicity under gastrointestinal conditions remain poorly understood. Unlike mammals, fish lack specialised antigen-sampling […]
“Effects of a fucoidan-containing functional feed on immune response of Atlantic salmon challenged with Tenacibaculum dicentrarchi (7168)”
Abstract Effects of a fucoidan-containing functional feed on immune response of Atlantic salmon challenged with Tenacibaculum dicentrarchi. Tenacibaculum dicentrarchi is a bacterium responsible for causing Tenacibaculosis, one of the most significant bacterial diseases affecting farmed salmon worldwide. This study aimed to evaluate whether a fucoidan-based diet could boost the immune response of Atlantic salmon and […]
“Effects of glucocorticoid receptor activation on gene expression and antiviral responses in Atlantic salmon red blood cells (7058)”
Abstract Effects of glucocorticoid receptor activation on gene expression and antiviral responses in Atlantic salmon red blood cells Intensified aquaculture strategies increase stress and infection pressure, leading to higher disease susceptibility among farmed populations. Farmed Atlantic salmon (Salmo salar) are prone to viral outbreaks, with stress often acting as a trigger for disease development. Fish […]
“Effects of particle load in recirculating aquaculture systems on Atlantic salmon health (7243)”
Abstract Effects of particle load in recirculating aquaculture systems on Atlantic salmon health Recirculating aquaculture systems (RAS) offer potential for intensive fish production with better environmental control, reduced water consumption and potentially greater biosecurity. However, despite the production advantages, RAS production can pose problems with regard to fish welfare and in particular, deterioration of gill […]
“Effects of starvation on the pharmacokinetics and withdrawal time of florfenicol in Nile tilapia (Oreochromis niloticus): implication on therapeutic efficacy (6934)”
Abstract Effects of starvation on the pharmacokinetics and withdrawal time of florfenicol in Nile tilapia (Oreochromis niloticus): implication on therapeutic efficacy Starvation is known to alter the pharmacokinetics (PK) and withdrawal time (WDT) of drugs in terrestrial animals; however, its effects in fish remain poorly understood. This study investigated the impact of a 14-day […]
“Effects of the probiotic Bacillus velezensis administered to European sea bass (Dicentrarchus labrax) kept in RAS after challenge with Vibrio harveyi (7207)”
Abstract Effects of the probiotic Bacillus velezensis administered to European sea bass (Dicentrarchus labrax) kept in RAS after challenge with Vibrio harveyi Climate change and the increasing implementation of intensive farming have led to more frequent disease outbreaks in aquaculture, often requiring antibiotic treatments to mitigate the losses caused by bacterial pathogens that can suddenly […]
“Effects of Torenia concolor on immune regulation and resistance to megalocytivirus in barramundi (Lates calcarifer) (7151)”
Abstract Effects of Torenia concolor on immune regulation and resistance to megalocytivirus in barramundi (Lates calcarifer) Red seabream iridovirus (RSIV) is a highly pathogenic virus that affects farmed barramundi in Asia, leading to high mortality and significant economic losses. Torenia concolor (TC) has bioactive compounds with anti-inflammatory and antiviral properties. In this study, we examined […]
“Efficacy of a phytobiotic-based additive in controlling natural ectoparasite infestations in farmed grouper, Epinephelus fuscoguttatus (7007)”
Abstract Efficacy of a phytobiotic-based additive in controlling natural ectoparasite infestations in farmed grouper, Epinephelus fuscoguttatus Ectoparasitic infections are a major health challenge in grouper (Epinephelus fuscoguttatus) farming in Asia, particularly during the early stages of culture. Parasites such as Zeylanicobdella, Caligus, Trichodina, and Dactylogyrus infest the gills, skin, and mucus, causing lesions that facilitate […]
“Efficacy of an autogenous vaccine against Tenacibaculum maritimum in European Sea bass (Dicentrarchus labrax) (7206)”
Abstract Efficacy of an autogenous vaccine against Tenacibaculum maritimum in European Sea bass (Dicentrarchus labrax) Introduction Tenacibaculum maritimum is a significant pathogen in European seabass (Dicentrarchus labrax) farming, causing ulcerative disease known as tenacibaculosis. The infection often results in severe skin lesions, gill necrosis, and high mortality, especially during warmer months. No commercial vaccines currently exist for […]
“Efficacy of Commercial Vaccines Available in Japan Against Streptococcus iniae in Six Salmonid Species (6980)”
Abstract Efficacy of Commercial Vaccines Available in Japan Against Streptococcus iniae in Six Salmonid Species Introduction: Streptococcus iniae infects a variety of freshwater and marine fish species. Formalin-inactivated vaccines are commonly used for preventive approaches against this bacterium. In Japan, several commercial formalin-inactivated vaccines are approved for use exclusively in some marine fish species, but […]
“Efficacy of Different Vaccine Administration Strategies Against North American and European Genotypes of Infectious Salmon Anemia Virus (Isav) in Atlantic Salmon (Salmo Salar L.) (7344)”
Abstract efficacy of different vaccine administration strategies against north american and european genotypes of infectious salmon anemia virus (isav) in atlantic salmon (salmo salar l.) This study evaluated the efficacy of two vaccination strategies using two commercial multivalent vaccines with ISA components in Atlantic salmon challenged with North American (NA, HPR4) or European (European genotype, […]
“Efficacy of Icthiovac LG vaccine against Lactococcus garvieae in European seabass (Dicentrarchus labrax) (7311)”
Abstract Efficacy of Icthiovac LG vaccine against Lactococcus garvieae in European seabass (Dicentrarchus labrax) ABSTRACT Lactococcus garvieae is an emerging pathogen in European seabass (Dicentrarchus labrax), with recent outbreaks reported in Italy and Spain. The absence of licensed vaccines for seabass and limited data on autogenous vaccine efficacy underscore the need for effective preventive […]
“Emergence of serotype III in Miamiensis avidus: molecular identification and virulence in olive flounder (7297)”
Abstract Emergence of serotype III in Miamiensis avidus: molecular identification and virulence in olive flounder Introduction: Miamiensis avidus is a highly pathogenic ciliate responsible for scuticociliatosis in olive flounder (Paralichthys olivaceus) in Korea and Japan. Current vaccines targeting serotypes I and II have shown limited effectiveness, probably due to the presence of uncharacterized serotypes. Methodology: […]
“Encased but not engulfed: characterization of host-parasite associates in rainbow trout with proliferative kidney disease (7221)”
Abstract Encased but not engulfed: characterization of host-parasite associates in rainbow trout with proliferative kidney disease Proliferative kidney disease (PKD) in rainbow trout (Oncorhynchus mykiss) is caused by the myxozoan (Cnidaria) parasite Tetracapsuloides bryosalmonae. Extrasporogonic stages localize to the kidney and trigger chronic inflammation. A defining feature of the host-parasite interaction is that parasite stages […]
“Enhancing Immune Protection in Threadfin Fish: A Recombinant Subunit C5a Peptidase Vaccine Combining Formalin-Killed Streptococcus iniae Cells (6930)”
Abstract Enhancing Immune Protection in Threadfin Fish: A Recombinant Subunit C5a Peptidase Vaccine Combining Formalin-Killed Streptococcus iniae Cells Streptococcus iniae is a significant pathogen in aquaculture, particularly affecting threadfin fish, leading to substantial economic losses. Effective vaccination strategies are essential to combat this pathogen while minimizing reliance on antibiotics. This study aims to develop a […]
“Enhancing sole larvae immunity: Artemia nauplii as NNV oral vaccine carriers (7197)”
Abstract Enhancing sole larvae immunity: Artemia nauplii as NNV oral vaccine carriers Senegalese sole (Solea senegalensis) is a marine flatfish with high commercial value in the Southern European aquaculture. However, its production is severely threatened by seasonal outbreaks of viral encephalopathy and retinopathy caused by the Nervous Necrosis Virus (NNV), which affects mainly larvae and […]
“Enteromyxum in the spotlight: decoding pathogenesis, resistance, and control (7302)”
Abstract Enteromyxum in the spotlight: decoding pathogenesis, resistance, and control The genus Enteromyxum includes four myxozoan species that have a high tropism for the gastrointestinal tract of marine fish. These parasites invade the intestinal epithelium, leading to chronic enteritis, malabsorption, weight loss, and, in severe cases, death. They pose significant challenges to wild, aquarium, and […]
“Environmental detection and the use of non-lethal sampling for diagnosis and detection of Renibacterium salmoninarum (6989)”
Abstract Environmental detection and the use of non-lethal sampling for diagnosis and detection of Renibacterium salmoninarum Bacterial kidney disease (BKD) is a serious and notifiable disease caused by the gram-positive bacterium Renibacterium salmoninarum (RS). The disease is chronic and insidious, making it difficult to detect before the infection is widespread in the population. Effective detection […]
“Epidemiological Monitoring of Infectious Hematopoietic Necrosis Virus in Rainbow Trout Fry and Broodstock in a Facility for 5 Years (7096)”
Abstract EPIDEMIOLOGICAL MONITORING OF INFECTIOUS HEMATOPOIETIC NECROSIS VIRUS IN RAINBOW TROUT FRY AND BROODSTOCK IN A FACILITY FOR 5 YEARS Infectious hematopoietic necrosis (IHN) poses a significant threat to salmonid aquaculture operations worldwide. In Japan, IHN remains prevalent among fry and juvenile rainbow trout in aquaculture since its invasion into the country in 70’s and […]
“Establishment and phenotypic characterization of a new cell line derived from rainbow trout (Oncorhynchus mykiss) brain (7242)”
Abstract Establishment and phenotypic characterization of a new cell line derived from rainbow trout (Oncorhynchus mykiss) brain Introduction Cell lines are important tools for basic and applied research allowing robust in vitro studies under controlled experimental conditions. In particular, they are useful assets for development of disease control strategies as, for instance, a system for […]
“Establishment of a New Endothelial Cell Line of Japanese Eel and Its Application to the Investigation of Temperature Preference of Japanese Eel Endothelial Cells-Infecting Virus (6983)”
Abstract Establishment of a New Endothelial Cell Line of Japanese Eel and Its Application to the Investigation of Temperature Preference of Japanese Eel Endothelial Cells-Infecting Virus Introduction: Japanese eel endothelial cells-infecting virus (JEECV) is the causative agent of viral endothelial cell necrosis of eel (VECNE), which has adversely affected eel aquaculture in East Asian countries. […]
“Establishment of SsB-1, a Solea senegalensis brain cell line – A versatile platform for fish virus research and transgene expression (7095)”
Abstract Establishment of SsB-1, a Solea senegalensis brain cell line – A versatile platform for fish virus research and transgene expression Introduction Cell lines serve as essential models in animal physiology and immunopathology, significantly minimizing the reliance on live animals in scientific research and supporting the 3Rs principle of reduction, refinement, and replacement. The Senegalese […]
“European sea bass beta-defensin is involved in anti-NNV response but its oral administration did not elicit any immunomodulation (6877)”
Abstract European sea bass beta-defensin is involved in anti-NNV response but its oral administration did not elicit any immunomodulation Introduction Antimicrobial peptides (AMPs) are short aminoacidic sequences with promising applications in field like medicine or aquaculture. AMPs can act as direct lytic effectors against a wide range of pathogens, including viruses, and modulate the immune […]
“Euthanasia of ornamental fish using clove oil (7210)”
Abstract Euthanasia of ornamental fish using clove oil Introduction Ornamental fish are usually euthanised using an overdose of anaesthetic diluted in water. However, in Switzerland, there are currently no drugs registered for euthanasia of fish. The aforementioned drugs can therefore only be imported from abroad by veterinarians. As only a few specialists are working with […]
“Evaluating the Dietary Inclusion of a Thymol-based Blend to Modulate Resistance and Survival Against Yersinia Ruckeri in Rainbow Trout (7436)”
Abstract EVALUATING THE DIETARY INCLUSION OF A THYMOL-BASED BLEND TO MODULATE RESISTANCE AND SURVIVAL AGAINST Yersinia ruckeri IN RAINBOW TROUT Yersinia ruckeri, the causative agent of enteric redmouth disease (ERM), is a common pathogen that causes substantial economic losses in salmonid aquaculture. This study evaluated the efficacy a thymol-based blend – Prototype TCS – in […]
“Evaluating the Immune Response of Atlantic Salmon, Salmo salar, Coinfected with Viral (Piscine orthoreovirus and Piscine myocarditis virus) and Parasitic Pathogens (Sea Lice – Lepeoptheirus salmonis) (7434)”
Abstract Evaluating the Immune Response of Atlantic Salmon, Salmo salar, Coinfected with Viral (Piscine orthoreovirus and Piscine myocarditis virus) and Parasitic Pathogens (Sea Lice – Lepeoptheirus salmonis) Atlantic salmon aquaculture faces significant challenges due to the spread of infectious diseases and seasonal fluctuations in parasite abundance. Two viruses of concern—Piscine orthoreovirus (PRV-1) and Piscine myocarditis […]
“Evaluating the performance of the surveillance for pancreas disease in Norwegian salmonid farming (6820)”
Abstract Evaluating the performance of the surveillance for pancreas disease in Norwegian salmonid farming Introduction Scenario tree modeling is widely used in veterinary epidemiology to support estimation of surveillance system sensitivity, demonstration of disease freedom, and the design of cost-effective surveillance strategies. The current Norwegian surveillance system for pancreas disease (PD) includes both monthly sampling […]
“Evaluation of dietary black garlic peel as an alternative to antibiotics in rainbow trout (Oncorhynchus mykiss) (6982)”
Abstract Evaluation of dietary black garlic peel as an alternative to antibiotics in rainbow trout (Oncorhynchus mykiss) Saeyeon Lim and Youngjin Park Department of Aquatic Life Medical Sciences, Sunmoon University, Asan 31460, Republic of Korea Introduction: Antibiotics are commonly used in aquaculture, but their misuse has raised concerns about resistance and environmental impact. Plant-derived bioactive […]
“Evaluation of Imoviral supplement effects on acute-phase response in Sparus aurata after Vibrio anguillarum infection (7215)”
Abstract Evaluation of Imoviral supplement effects on acute-phase response in Sparus aurata after Vibrio anguillarum infection Introduction Research on food additives to boost immune responses in marine organisms is crucial for aquaculture. This study evaluated the efficacy of Imoviral® complex in Sparus aurata, a dietary supplement with exclusively natural extracts such as uncaria (Uncaria tomentosa), shiitake […]
“Evaluation of the potential effects of sodium fluoride, a suspected endocrine disrupting substance, on the immune system of rainbow trout, Oncorhynchus mykiss – SUSPECT (6950)”
Abstract Evaluation of the potential effects of sodium fluoride, a suspected endocrine disrupting substance, on the immune system of rainbow trout, Oncorhynchus mykiss – SUSPECT Introduction: The sanitary authorities have a particular interest in endocrine disrupting compounds (EDCs) because of their increasing use and their proven and/or suspected harmful effects on humans and the environment. […]
“Evolution of an Extended Pathogenicity Motif in VP2 of Infectious Pancreatic Necrosis Virus Isolates from Farmed Rainbow Trout in Turkey (6267)”
Abstract Evolution of an Extended Pathogenicity Motif in VP2 of Infectious Pancreatic Necrosis Virus Isolates from Farmed Rainbow Trout in Turkey Introduction: Infectious pancreatic necrosis virus (IPNV) causes economic losses with highly variable mortality rates, especially in rainbow trout worldwide. The virus has a double-stranded bi-partite RNA genome designated segment A, and B. VP2 is […]
“Evolutionary and functional characterization of TNFRSF25 as a putative receptor for TNFSF15 in Rock bream (Oplegnathus fasciatus) (6995)”
Abstract Evolutionary and functional characterization of TNFRSF25 as a putative receptor for TNFSF15 in Rock bream (Oplegnathus fasciatus) Tumor necrosis factor ligand superfamily member 15 (TNFSF15) and its receptor, TNFRSF25, are integral to immune regulation, inflammation, and apoptosis in mammals. This study aims to identify and characterize the putative TNFSF15 receptor, TNFRSF25, in the rock […]
“Expansion of Proliferative Kidney Disease (PKD) in Rainbow Trout in Piedmont (Italy): Emerging Challenges for Regional Aquaculture (7341)”
Abstract Expansion of Proliferative Kidney Disease (PKD) in Rainbow Trout in Piedmont (Italy): Emerging Challenges for Regional Aquaculture Proliferative kidney disease (PKD), caused by the myxozoan parasite Tetracapsuloides bryosalmonae, has never been found in Piedmont, west of the Ticino river, limiting its range to north-eastern Italy. This study resports the appareance of PKD in rainbow […]
“Experience with the use of a live attenuated vaccine against SRS (6943)”
Abstract Experience with the use of a live attenuated vaccine against SRS Piscirickettsia salmonis causes Salmonid Rickettsial Septicemia (SRS) in farmed salmonid fish globally. In autumn 2024, the disease was diagnosed at several sea sites in Northern Norway. In Chile, SRS has been a significant problem and the main cause of antibiotic use. Comparison of genomes […]
“Experimental infection approaches to investigate resistance to Bacterial Cold-Water Disease in rainbow trout (6976)”
Abstract Experimental infection approaches to investigate resistance to Bacterial Cold-Water Disease in rainbow trout Bacterial cold-water disease (BCWD), also known as rainbow trout fry syndrome, is a devastating disease in freshwater salmonid farming worldwide. Flavobacterium psychrophilum, the causative agent, affects high commercial value salmonid species such as rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo […]
“Experimental infection of rainbow trout (Oncorhynchus mykiss) and redfin perch (Perca fluviatilis) with Epizootic haematopoietic necrosis virus (EHNV) (7123)”
Abstract Experimental infection of rainbow trout (Oncorhynchus mykiss) and redfin perch (Perca fluviatilis) with Epizootic haematopoietic necrosis virus (EHNV). Epizootic haematopoietic necrosis virus (EHNV) is a ranavirus responsible for high mortality events in redfin perch (Perca fluviatilis) and low severity disease in rainbow trout (Oncorhynchus mykiss). This disease, notifiable for the WOAH (World Health Organization […]
“Experimental infection of rainbow trout with Piscine orthoreovirus 2 (PRV-2) (7119)”
Abstract Experimental infection of rainbow trout with Piscine orthoreovirus 2 (PRV-2) Piscine orthoreoviruses (recently renamed Orthoreovirus piscis by ICTV) have emerged as a challenge for salmonid aquaculture worldwide. Piscine orthoreovirus (PRV) belongs to the family Reoviridae, has a double stranded RNA genome consisting of 10 segments and double protein capsid with icosahedral symmetry. Three subtypes […]
“Experimental infection with Edwardsiella tarda in African catfish (Clarias gariepinus) (7020)”
Abstract Experimental infection with Edwardsiella tarda in African catfish (Clarias gariepinus) Introduction: Edwardsiella tarda is a facultative anaerobic, intracellular, gram-negative, motile bacterium, that affects a wide range of fish species, including African catfish (Clarias gariepinus), a species that has become perspective aquaculture species thanks to rapid growth and tolerance to environmental extremes. Outbreaks of edwardsiellosis […]
“Exploring experimentally the impact of climate change and plastic pollution on the dynamics of bonamiosis in the native European oyster Ostrea edulis (7033)”
Abstract Exploring experimentally the impact of climate change and plastic pollution on the dynamics of bonamiosis in the native European oyster Ostrea edulis The flat oyster, Ostrea edulis, is native from Europe. Overfishing and diseases have contributed to the decline of both farmed and wild populations of this species since the 19th century. The protozoan […]
“Exploring natural protective immunity against Tetracapsuloides bryosalmonae in Rainbow Trout Aquaculture. (7127)”
Abstract Exploring natural protective immunity against Tetracapsuloides bryosalmonae in Rainbow Trout Aquaculture. Emerging infectious diseases driven by climate change pose a major and growing challenge to the future of sustainable aquaculture. Proliferative Kidney Disease (PKD), caused by the myxozoan parasite Tetracapsuloides bryosalmonae (Tb) is highly temperature sensitive and has emerged as one of the most […]
“Exploring the antiparasitic potential of black soldier fly (BSFL)-based preparations for the treatment of Gyrodactylus turnbulli, a monogenean parasite (7188)”
Abstract exploring the antiparasitic potential of black soldier fly (BSFL)-based preparations for the treatment of Gyrodactylus turnbulli, a monogenean parasite Introduction Parasitic infections caused by monogenea are a major concern in aquaculture, threatening fish health, growth, and overall farm productivity. The limited availability of approved and effective treatments, combined with their limited effectivity and associated […]
“Exploring the antiviral and antibacterial roles of European sea bass beta-defensins (6875)”
Abstract Exploring the antiviral and antibacterial roles of European sea bass beta-defensins Introduction Beta-defensin (Bdef) are a class of antimicrobial peptides (AMPs) characterized by six conserved cysteines and three disulfide bridges. In fish, Bdef show a dual mode of action as other AMPs mediating immunomodulation or exerting antiviral and antibacterial direct activity. As aquaculture sector […]
“Extracellular vesicles secreted by Pediococcus pentosaceus exhibited the resistance to megalocytivirus in barramundi kidney cell line (7137)”
Abstract Extracellular vesicles secreted by Pediococcus pentosaceus exhibited the resistance to megalocytivirus in barramundi kidney cell line Barramundi (Lates calcarifer), an economically important aquaculture species in Taiwan, is prone to infectious disease outbreaks under high-density farming conditions. Among these, red sea bream iridovirus (RSIV) is one of the most severe pathogens causing high mortality in […]
“Farm-level biosecurity and health management in floating net cage fish farms in Croatia (7068)”
Abstract Farm-level biosecurity and health management in floating net cage fish farms in Croatia Introduction Floating net cage farming is currently the only fish farming technology used in the Adriatic Sea. Its main advantages are simplicity and lower costs compared to other farming systems. However, it also presents significant challenges, particularly the inability to control […]
“Fat necrosis – a key histological feature of melanized focal changes in farmed Atlantic salmon (7160)”
Abstract Fat necrosis – a key histological feature of melanized focal changes in farmed Atlantic salmon Melanized focal changes (MFCs) in the fillet of farmed Atlantic salmon represent a significant quality issue. These changes are believed to originate as acute red focal changes (RFCs) that evolve into chronic MFCs. Recent research suggests that hypoxia may […]
“Feed administration of oregano oil loaded lauric acid cationic-nanostructured lipid carrier against Streptococcus agalactiae in Nile tilapia (Oreochromis niloticus) (7306)”
Abstract Feed administration of oregano oil loaded lauric acid cationic-nanostructured lipid carrier against Streptococcus agalactiae in Nile tilapia (Oreochromis niloticus) Streptococcosis caused by Streptococcus agalactiae is a major disease in Nile tilapia (Oreochromis niloticus), causing high mortality and economic losses in aquaculture. Although antibiotics are commonly used to control this disease, their prolonged use can […]
“Field safety and efficacy of a new Moritella viscosa vaccine for Atlantic salmon tested in large scale GCP field studies in Norway (7044)”
Abstract Field safety and efficacy of a new Moritella viscosa vaccine for Atlantic salmon tested in large scale GCP field studies in Norway Winter ulcers caused by the bacterium Moritella viscosa (M. viscosa) represent a severe animal welfare challenge with significant economic consequences for salmon farming in the northern hemisphere, especially when sea temperatures are […]
“Fighting Gill Polyopisthocotyleans in Gilthead Seabream (Sparus Aurata): Screening Pharmacological, Phytogenics and Essential Oils for Candidate Treatments (7304)”
Abstract FIGHTING GILL POLYOPISTHOCOTYLEANS IN GILTHEAD SEABREAM (Sparus aurata): SCREENING PHARMACOLOGICAL, PHYTOGENICS AND ESSENTIAL OILS FOR CANDIDATE TREATMENTS Sparicotyle chrysophrii is a blood-feeding ectoparasite threatening the health of farmed gilthead seabream (Sparus aurata), a species of high economic relevance in Mediterranean aquaculture. Therapeutic options remain limited, with formalin baths representing at the moment the sole […]
“Filling the gap: Starting to decrypt the genetic diversity of Aphanomyces astaci in Switzerland (7061)”
Abstract Filling the gap: Starting to decrypt the genetic diversity of Aphanomyces astaci in Switzerland Introduction The genetic diversity of Aphanomyces astaci influences host-pathogen interactions. Genetic diversity of A. astaci in Europe is broad and five major genotype groups (A-E) have been identified. These groups have been linked to different low-susceptibility North American crayfish species, […]
“First case of Exophiala aquamarina infection in gilthead seabream (Sparus aurata), under intensive marine farming conditions in Greece (6949)”
Abstract First case of Exophiala aquamarina infection in gilthead seabream (Sparus aurata), under intensive marine farming conditions in Greece Introduction In recent years, infections caused by fungi of the Exophiala genus have been reported in a wide range of aquatic organisms, including farmed fish. In hatcheries and sea cages, fungal infections are often associated with […]
“First detection of Perkinsus mediterraneus in flat oysters in Northern Adriatic Sea (7175)”
Abstract First detection of Perkinsus mediterraneus in flat oysters in Northern Adriatic Sea Introduction Health monitoring of Ostrea edulis in the Northern Adriatic Sea was conducted as a part of the INTERREG project “MARINET,” which aims to evaluate the feasibility of an Integrated Multi-Trophic Aquaculture (IMTA) model involving flat oysters and sea bass. To support […]
“First detection of the Fancy-Tailed Guppy Virus (FTGV) in Europe (7356)”
Abstract First detection of the Fancy-Tailed Guppy Virus (FTGV) in Europe Introduction: The Fancy-Tailed Guppy Virus (FTGV) is a pathogen of the guppy (Poecilia reticulata) and a new member of the emerging Amnoonviridae family of viruses, which are proving to be some of the most virulent and dangerous for fish. Due to its segmented genome, […]
“First record of a coccidian parasite, Calyptospora mexicanus n. sp. (Eimeriorina: Calyptosporidae) infecting three different native species in Mexico” (7005)
Abstract First record of a coccidian parasite, Calyptospora mexicanus n. sp. (Eimeriorina: Calyptosporidae) infecting three different native species in Mexico A high diversity of local and regional endemic species characterises the ichthyofauna of Mexico. Fish parasite research in the country has mainly focused on helminths, whereas the diversity of other parasitic groups has received less […]
“First report of Lactococcosis by Lactococcus garvieae in Atlantic Bluefin Tuna (Thunnus thynnus) (7179)”
Abstract First report of Lactococcosis by Lactococcus garvieae in Atlantic Bluefin Tuna (Thunnus thynnus) Introduction Lactococcus garvieae is one of the most relevant infectious agents of temperate finfish aquaculture, as it has been reported in over 40 freshwater and saltwater fish species. In southern European countries, rainbow trout (Oncorhynchus mykiss) has always been considered the […]
“First report on Flavobacterium columnare causing disease outbreaks in cultured black carp, Mylopharyngodon piceus (7189)”
Abstract First report on Flavobacterium columnare causing disease outbreaks in cultured black carp, Mylopharyngodon piceus Columnaris disease has recently emerged as a concern for black carp (Mylopharyngodon piceus), an economically important aquaculture species in northern Vietnam. This study investigated the disease outbreaks from five affected farms. A total of 47 naturally diseased fish were sampled […]
“Fishing for protection: Evaluating recombinant Flavobacterium covae vaccines in channel catfish with or without a dietary probiotic (6916)”
Abstract Fishing for protection: Evaluating recombinant Flavobacterium covae vaccines in channel catfish with or without a dietary probiotic Introduction: Flavobacterium covae, an etiological agent of columnaris disease, is highly virulent in channel catfish and causes significant economic losses for the US aquaculture industry. We tested the immunogenicity of different F. covae proteins, expressed highly under […]
“Flavobacterium psychrophilum: what’s up bug? (6941)”
Abstract Flavobacterium psychrophilum: what’s up bug? Flavobacterium psychrophilum is the etiological agent of rainbow trout fry syndrome and bacterial cold-water disease in salmonid fish reared in freshwater. F. psychrophilum is currently one of the main bacterial pathogens hampering the productivity of salmonid farming worldwide. Our team has a long-lasting love story with bacteria of this […]
“Florfenicol-induced alterations in Cytochrome P450 gene expression and enzyme activity in Nile Tilapia: mechanistic insight into synergistic antibiotic effects (7187)”
Abstract Florfenicol-induced alterations in Cytochrome P450 gene expression and enzyme activity in Nile Tilapia: mechanistic insight into synergistic antibiotic effects Florfenicol (FF) is a widely used broad-spectrum antibiotic in veterinary medicine. In terrestrial animals, cytochrome P450 enzymes, particularly CYP1A and CYP3A, play critical roles in hepatic drug metabolism, including the biotransformation of FF and other […]
“Following the carp clause: Common carp (Cyprinus carpio) welfare status in the Czech Republic and Germany within the EU regulatory framework (6868)”
Abstract Following the carp clause: Common carp (Cyprinus carpio) welfare status in the Czech Republic and Germany within the EU regulatory framework Introduction: As aquaculture is the fastest-growing food sector worldwide, the topic of fish welfare is becoming more prominent. The increased attention aquatic animals have received highlighted substantial gaps in scientific and technical knowledge […]
“Frozen Out: Can Macrobrachium Rosenbergii survive French winters? (6904)”
Abstract FROZEN OUT: CAN MACROBRACHIUM ROSENBERGII SURVIVE FRENCH WINTERS ? Introduction: The freshwater prawn Macrobrachium rosenbergii is naturally distributed across South Asia and the Pacific, from eastern Papua New Guinea to western Pakistan. This species is commercially valuable and widely farmed in tropical regions due to its high growth rate and tolerance to warm temperatures. […]
“Functional Role of Vitamin E Supplementation in Enhancing Growth performance and Biochemical Resilience in Nile Tilapia (Oreochromis niloticus) (7067)”
Abstract Functional Role of Vitamin E Supplementation in Enhancing Growth performance and Biochemical Resilience in Nile Tilapia (Oreochromis niloticus) Vitamin E plays an important role in animal diets. It regulates many body functions like growth, antioxidant defenses and digestion. Objective of the study was to determined role of supplementary Vitamin E (VE) affects the growth […]
“Fundamental research toward the development of control measures against trematode whirling disease in marine fish (7120)”
Abstract Fundamental research toward the development of control measures against trematode whirling disease in marine fish The trematode whirling disease is caused by the metacercaria of Galactosomum nagasakiense (Digenea: Heterophyidae), which encysts in the brains of marine fish. The disease typically occurs in summer and primarily affects juvenile fish, which exhibit abnormal whirling behavior near […]
“Further evidence of apoptosis reduction in salmonid leukocytes in vitro exposed to Piscirickettsia salmonis extracellular products (7264)”
Abstract Further evidence of apoptosis reduction in salmonid leukocytes in vitro exposed to Piscirickettsia salmonis extracellular products Introduction. Piscirickettsia salmonis is a gram-negative facultative intracellular bacterium which causes piscirickettsiosis. This is a systemic disease of seawater-cultured fish affecting endemically salmonids in Chile and sporadically salmonids, and other teleost fish species, in different regions of the […]
“Gene expression in the gills of freshwater Atlantic salmon affected by epitheliocystis (6855)”
Abstract Gene expression in the gills of freshwater Atlantic salmon affected by epitheliocystis Introduction Epitheliocystis is an intracellular bacterial infection affecting mucosal surfaces (mostly gills) of fish which can cause clinical signs and mortalities. This disease contributes to multifactorial gill diseases and can affect salmon performance. Candidatus Clavichlamydia salmonicola has been associated with epitheliocystis in […]
“Genetic diversity of Vibrio harveyi isolates from diseased sea bass in the Mediterranean: evidence for a highly-cytotoxic lineage that secretes novel virulence factors (7320)”
Abstract Genetic diversity of Vibrio harveyi isolates from diseased sea bass in the Mediterranean: evidence for a highly-cytotoxic lineage that secretes novel virulence factors Introduction: In the last decade, Vibrio harveyi has been identified as causative agent of vibriosis in sea bass farms in the Mediterranean basin. This bacterium has been considered as commensal microbiota […]
“Genomic analysis and rtp3 gene expression in gilthead sea bream (Sparus aurata) following NNV infections (6993)”
Abstract Genomic analysis and rtp3 gene expression in gilthead sea bream (Sparus aurata) following NNV infections Introduction Receptor-transporting protein 3, rtp3, is an interferon-stimulated gene with potential antiviral functions in fish. However, the genomic organization of fish rtp3 genes and their role in the antiviral defence remain poorly characterized. Nervous necrosis virus (NNV), a member […]
“Genomic and morphological characterisation of a novel iridovirus associated with cockle mortalitie (7063)”
Abstract Genomic and morphological characterisation of a novel iridovirus associated with cockle mortalities Background: High rates of mortality of the common cockle, Cerastoderma edule, have occurred in the Wash Estuary since 2008. A previous study linked the mortalities to an emerging genotype of Marteilia cocosarum, with a strong correlation between cockle moribundity and the presence […]
“Genomic Characterization of Marine Vibrio Species for the Development of Novel Diagnostic Tools (7021)”
Abstract Genomic Characterization of Marine Vibrio Species for the Development of Novel Diagnostic Tools The genus Vibrio comprises numerous marine bacteria, including several species recognised as important pathogens with significant implications for both human health and aquaculture. In particular, marine molluscs are highly susceptible to infections caused by specific Vibrio taxa. The development of accurate […]
“Genomic characterization of Salmon Gill Pox virus in Iceland (7234)”
Abstract Genomic characterization of Salmon Gill Pox virus in Iceland The Salmon Gill Poxvirus (SGPV) is known to cause an acute respiratory disease, sometimes leading to high mortality in juvenile farmed Atlantic salmon (Salmo salar L.). In 2015, the whole genome of SGPV was characterized and published, providing insight into the genetic structure of the […]
“Genomics of Tenacibaculum maritimum in British Columbia (Canada) and in-silico investigations into immunogenics and virulence (7088)”
Abstract Genomics of Tenacibaculum maritimum in British Columbia (Canada) and in-silico investigations into immunogenics and virulence. Tenacibaculum maritimum, a Gram-negative, obligate marine bacteria, is a causative agent of tenacibaculosis globally, inducing several regional clinical presentations. In British Columbia (BC) Canada, the disease is colloquially known as ‘yellow mouth’ or ‘mouthrot’ in Atlantic salmon marine […]
“Gill histopathology associated with Lernanthropus kroyeri and Diplectanum aequans infestation in European seabass (Dicentrarchus labrax) (7247)”
Abstract Gill histopathology associated with Lernanthropus kroyeri and Diplectanum aequans infestation in European seabass (Dicentrarchus labrax) Gill-associated parasites are a significant concern in marine aquaculture, particularly in intensively farmed species such as European seabass (Dicentrarchus labrax). Lernanthropus kroyeri, a parasitic copepod commonly found on the gills of marine fish, poses significant threats to host health […]
“Gill Microbiome as a Sentinel for Wild Fish Health and Pathogen Surveillance Across Marine Ecosystems (7184)”
Abstract Gill Microbiome as a Sentinel for Wild Fish Health and Pathogen Surveillance Across Marine Ecosystems Recent advances in next-generation sequencing (NGS) have enabled deeper insights into the microbial communities inhabiting fish gills—a key mucosal interface directly interacting with the aquatic environment. Here, we synthesize findings from two parallel surveys of wild fish species conducted […]
“Global Warming and Aquatic Vulnerability: Salmonid Mortality as an Indicator of Climate Stress (7142)”
Abstract Global Warming and Aquatic Vulnerability: Salmonid Mortality as an Indicator of Climate Stress Rapid climate change is an unprecedented global challenge with far-reaching consequences for biodiversity, particularly in aquatic ecosystems. Studies have consistently demonstrated that temperature is a critical factor influencing the health, distribution, and survival of cold-water fish species. For Atlantic salmon (Salmo […]
“GRINNAQUA Insights from Stakeholder Engagement: Addressing Challenges and Opportunities in Aquaculture (7259)”
Abstract GRINNAQUA Insights from Stakeholder Engagement: Addressing Challenges and Opportunities in Aquaculture The GRINNAQUA project is dedicated to enhancing sustainable aquaculture practices through research, collaboration, and innovation. As part of this initiative, two key events were organized, in collaboration with the MycoFish (PTDC/CVT-CVT/2660/2021) and AquaClimAdapt (PTDC/CTA-AMB/0592/2021) projects to gather together academia, aquaculture industry stakeholders, and […]
“GRINNAQUA Project: Building Capacity for a more Sustainable Aquaculture (7260)”
Abstract GRINNAQUA Project: Building Capacity for a more Sustainable Aquaculture The GRINNAQUA project, aligned with the EU’s Farm-to-Fork Strategy, aims to strengthen CIIMAR’s research capabilities and its leadership role in the aquaculture industry. In partnership with leading European institutions—INIA-CSIC (Spain), the University of Bergen (Norway), and the Roslin Institute at the University of Edinburgh (UK)—one […]
“Harnessing biological novelty to develop therapeutics for the control of proliferative kidney disease in farmed salmonids (7327)”
Abstract Harnessing biological novelty to develop therapeutics for the control of proliferative kidney disease in farmed salmonids Proliferative kidney disease (PKD), caused by the myxozoan, Tetracapsuloides bryosalmonae, is a serious parasitic disease impacting salmonid fish in Europe and USA. Despite the absence of therapeutic control, farmers mitigate against serious losses via pre-exposure, exploiting natural immunity […]
“Hatchery personnel’s perceptions on risk factors for fish mortality after sea transfer (7018)”
Abstract Hatchery personnel’s perceptions on risk factors for fish mortality after sea transfer Introduction: The transition from hatchery to sea site is a critical phase in the life cycle of Atlantic salmon, often associated with significant mortality rates. Understanding the perceptions of hatchery personnel regarding the risk factors contributing to these mortalities is essential for […]
“HEALTHSEA: Impact of global change on health status and robustness of juvenile European seabass (Dicentrarchus labrax) (7051)”
Abstract HEALTHSEA: Impact of global change on health status and robustness of juvenile European seabass (Dicentrarchus labrax) Introduction Coastal areas are particularly vulnerable to the combined pressures of climate change and human activities. In addition to the ongoing warming and acidification of the oceans driven by high CO2 emissions, rising temperatures and eutrophication have increased […]
“Hematodinium perezi detection in blue crab (Callinectes sapidus) and its seasonal prevalence in northern Adriatic lagoons (7263)”
Abstract Hematodinium perezi detection in blue crab (Callinectes sapidus) and its seasonal prevalence in northern Adriatic lagoons. Introduction:The blue crab (Callinectes sapidus) is an allochthonous and invasive species observed in the last decades in the Mediterranean Sea, which has recently spread in the Italian northern Adriatic lagoon, causing significant damage to the local shellfish farming. […]
“Heme biosynthesis and hemoglobin degradation in the myxozoan parasite Sphaerospora molnari (7110)”
Abstract Heme biosynthesis and hemoglobin degradation in the myxozoan parasite Sphaerospora molnari Introduction:
The heme biosynthesis pathway (HBP) is essential for aerobic metabolism and highly conserved across eukaryotes. Interestingly, many blood-feeding parasites lack a complete HBP and scavenge heme from host hemoglobin. Hemoglobin degradation typically follows an orchestrated proteolytic cascade involving aspartic, cysteine, and metalloproteases. Sphaerospora […]
“High-density genome-wide association study in two cohorts of rainbow trout identifies candidate genes for resistance to infectious pancreatic necrosis (7028)”
Abstract High-density genome-wide association study in two cohorts of rainbow trout identifies candidate genes for resistance to infectious pancreatic necrosis. Introduction This study focuses on genetic resistance to infectious pancreatic necrosis (IPN), a highly contagious disease caused by an aquatic birnavirus (IPNV) which especially affects salmonids worldwide. The objectives of this research were to estimate […]
“High-quality genome sequences enable in-depth studies of the genomic structure and pathogenic potential of Aphanomyces astaci genotypes (7050)”
Abstract High-quality genome sequences enable in-depth studies of the genomic structure and pathogenic potential of Aphanomyces astaci genotypes Aphanomyces astaci, the causal agent of crayfish plague, is a devastating oomycete pathogen that causes high mortalities in ecologically important European crayfish species such as noble crayfish, white-clawed crayfish, and stone crayfish. To date, at least five […]
“High-resolution genomic tracking of PMCV transmission pathways in farmed Atlantic salmon in the Faroe Islands (7262)”
Abstract High-resolution genomic tracking of PMCV transmission pathways in farmed Atlantic salmon in the Faroe Islands. Introduction Cardiomyopathy syndrome (CMS), caused by Piscine myocarditis virus (PMCV), continues to challenge Atlantic salmon (Salmo salar) aquaculture in the Faroe Islands. Previous whole-genome sequencing (WGS) of Faroese PMCV strains revealed a genetically homogeneous PMCV clade with no evidence […]
“High-Throughput Screening of Antiviral Candidates Using VHSV as an RNA Virus Surrogate Model (7016)”
Abstract High-Throughput Screening of Antiviral Candidates Using VHSV as an RNA Virus Surrogate Model RNA viruses, including those responsible for infectious diseases such as influenza, COVID-19, Ebola, and rabies, are highly prone to mutation. The high genetic variability and infectious nature of RNA viruses have led to increasing demand for the development of broad-spectrum antiviral […]
“Highlighting gill pathology – Better visualisation of an often complex picture (7333)”
Abstract Highlighting gill pathology – Better visualisation of an often complex picture Gill issues in salmon, such as infectious diseases and damage from environmental stressors, significantly impact their respiratory efficiency, growth rates, and overall health, posing substantial challenges for sustainable aquaculture. Histopathology is a powerful tool when assessing fish gills but interpretation of histopathology reports […]
“Histology-guided RNA‑seq: deciphering the cutaneous landscape of turbot furunculosis (7124)”
Abstract Histology-guided RNA‑seq: deciphering the cutaneous landscape of turbot furunculosis Introduction Turbot (Scophthalmus maximus), Europe’s leading farmed flatfish, faces several production hazards. Among them, furunculosis, caused by Aeromonas salmonicida subsp. salmonicida (Ass), stands out. In its chronic form, furunculosis produces a multifocal, granulomatous, occasionally ulcerative dermatitis. While the histopathology of these lesions is characterised, the […]
“Histopathological changes caused by parasitic copepods in marine fish from Tunisian coasts (7170)”
Abstract Histopathological changes caused by parasitic copepods in marine fish from Tunisian coasts Parasitic copepods are of the most common ectoparasites on marine fish. Many species of copepods have long been recognized to have the potential to affect the growth, fecundity and survival of their hosts. Parasitic copepods feed on host mucous, tissues, and blood, […]
“Holding Back the Tide of Aquatic Pathogens: How Virus Genomics Can Protect the Aquaculture Industry (7255)”
Abstract Holding Back the Tide of Aquatic Pathogens: How Virus Genomics Can Protect the Aquaculture Industry Salmon aquaculture is one of the fastest-growing food production system worldwide, driven by rising global demand for high-quality protein and sustainable seafood. However, the industry faces substantial challenges, with nearly 17% of salmon dying during the marine phase of […]
“How does 25-hydroxycholesterol (25HC) affect the viral replication and the immune response of zebrafish larvae infected with enveloped (TiLV and SVCV) and non-enveloped (NNV) viruses? (7117)”
Abstract How does 25-hydroxycholesterol (25HC) affect the viral replication and the immune response of zebrafish larvae infected with enveloped (TiLV and SVCV) and non-enveloped (NNV) viruses? Introduction: 25-hydroxycholesterol (25HC) is an oxidized derivative of cholesterol that can be generated either enzymatically, through the action of cholesterol 25-hydroxylase (Ch25h), or via non-enzymatic pathways involving reactive oxygen […]
“How to define epidemiological areas for surveillance of notifiable mollusc diseases – an example from Denmark (7359)”
Abstract How to define epidemiological areas for surveillance of notifiable mollusc diseases – an example from Denmark Introduction The protozoan parasites Bonamia ostreae, Bonamia exitiosa and Marteilia refringens are causes of notifiable diseases in the EU. They infect bivalve molluscs and can cause considerable mortality. In Denmark, B. ostreae is present in the Limfjorden, in […]
“Identification of secretion systems in Edwardsiella piscicida genomes (7385)”
Abstract Identification of secretion systems in Edwardsiella piscicida genomes Edwardsiella piscicida is a Gram-negative bacterium, causative agent of the fish disease edwardsiellosis. Bacterial secretion systems (TSS) are nanomolecular complexes that release a diverse virulence factor into host cells. So far, the TSS described in E. piscicida are Sec pathway, T1SS, T3SS, T5SS and T6SS. Moreover, […]
“Identifying resistance genes responsible for natural protection against a fish parasite in zebrafish (6719)”
Abstract IDENTIFYING RESISTANCE GENES RESPONSIBLE FOR NATURAL PROTECTION AGAINST A FISH PARASITE IN ZEBRAFISH The protozoan parasite Ichthyophthirius multifiliis is the causative agent of white spot disease, a major threat to freshwater fish worldwide, particularly in aquaculture systems, where it leads to significant morbidity and mortality. The parasite infects the epidermal surfaces of fish, including […]
“Illumination of anguillid herpesvirus 1 transmission reveals the importance of host developmental stage and social interactions (7072)”
Abstract Illumination of anguillid herpesvirus 1 transmission reveals the importance of host developmental stage and social interactions The European eel (EE) is an important farmed fish and a flagship species for conservation efforts. Its life cycle involves different stages and extended migration through both marine and freshwater environments. EE is critically endangered. Among the pathogens […]
“Immersion delivery of cationic lipid-based mucoadhesive nano-vaccine enhances mucosal uptake and skin penetration in Striped catfish (Pangasianodon Hypophtalmus) against edwardsiella Ictaluri (7293)”
Abstract Immersion delivery of cationic lipid-based mucoadhesive nano-vaccine enhances mucosal uptake and skin penetration in Striped catfish (Pangasianodon Hypophtalmus) against edwardsiella Ictaluri Center of Excellence in Wildlife, Exotic, and Aquatic Animal Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand Authors Yostawonkul, Jakarwan, NATIONAL NANOTECHNOLOGY CENTER, Author Kitiyodom, Sirikorn, Center of Excellence in Wildlife, Exotic, […]
“Immune response of Mytilus sp. challenged with low-virulence and high-virulence isolates of Francisella halioticida (7230)”
Abstract Immune response of Mytilus sp. challenged with low-virulence and high-virulence isolates of Francisella halioticida Introduction In France and other European countries, several hypotheses are currently being explored to explain the recurrent mass mortality events observed in mussels since 2014. Two of these hypotheses involve bacterial species: Vibrio splendidus, known pathogen of aquatic species and […]
“Immune response of Senegalese sole to a NNV protein-based vaccine (7198)”
Abstract Immune response of Senegalese sole to a NNV protein-based vaccine Vaccination is the preferred strategy for preventing viral diseases in aquaculture. However, developing effective vaccines for aquatic environments presents several challenges. Key factors such as antigen presentation, delivery method, and antigen concentration must be carefully considered. Additionally, due to the unique characteristics of the […]
“Immunological role of beta-defensins in European sea bass immunity (6876)”
Abstract Immunological role of beta-defensins in European sea bass immunity Introduction Antimicrobial peptides (AMPs) are small, cationic, and amphipathic peptides with predominant alpha-helix secondary structure. AMPs show a dual mode of action: i) direct lytic effects, and ii) modulation of the host immune response. AMPs are known to regulate inflammatory responses, induce leucocyte mobilization and […]
“Impact and population dynamics in a German biofloc aquaculture: ‚What happens in an aquaculture stays in an aquaculture‘? (7039)”
Abstract Impact and population dynamics in a German biofloc aquaculture: ‚What happens in an aquaculture stays in an aquaculture‘? Introduction: The genus Vibrio has the potential to exert a considerable influence on the field of aquaculture. While some species are classified as pathogenic to fish and seafood (e.g., V. campbellii/V. harveyi complex), other species, including V. […]
“Impact of global warming on host/pathogen interactions in a Novirhabdovirus / Rainbow trout (Oncorhynchus mykiss) model (7057)”
Abstract Impact of global warming on host/pathogen interactions in a Novirhabdovirus / Rainbow trout (Oncorhynchus mykiss) model Context : The development of aquaculture, the world’s fastest-growing agricultural sector, faces several challenges such as global warming, environmental pollution and the emergence of pathogens; impacting the health and welfare of both farm and wildlife animals. Climate modeling […]
“Impact of oral immune priming on Manila clam (Ruditapes phillippinarum) microbiota (7219)”
Abstract Impact of oral immune priming on Manila clam (Ruditapes phillippinarum) microbiota Growing evidence demonstrates that invertebrates display adaptive-like immune abilities, commonly known as “immune priming”: if invertebrates were previously exposed to the pathogen they will be better protected to subsequent re-infections. Immune priming has been demonstrated to date in a few species from different […]
“Implementation of a Recombinase Polymerase Amplification-Driven Duplex Lateral Flow Diagnostic Kit for Concurrent Detecting Infectious Pancreatic Necrosis Virus and Viral Hemorrhagic Septicemia Virus: A Comparative Analysis of RPA and PCR Methods (6221)”
Abstract Implementation of a Recombinase Polymerase Amplification-Driven Duplex Lateral Flow Diagnostic Kit for Concurrent Detecting Infectious Pancreatic Necrosis Virus and Viral Hemorrhagic Septicemia Virus: A Comparative Analysis of RPA and PCR Methods. Diagnosis time of infectious diseases in aquaculture is an important issue. Local and commercial enterprises generally do not prefer laboratory diagnosis of infectious […]
“Implementation of antimicrobial resistance surveillance in farmed aquatic animals: The UK example. (6295)”
Abstract Implementation of antimicrobial resistance surveillance in farmed aquatic animals: The UK example. Introduction: Antimicrobial resistance (AMR) is a globally significant public health issue, driven by the use of antimicrobial agents in human and animal health, and food production. The contribution of fish farming to the spread of AMR is poorly documented, highlighting an urgent […]
“In cold water: impacts of acute cold-stress and Vibrio harveyi challenge on the microRNA and mRNA response of barramundi (Lates calcarifer) (6892)”
Abstract In cold water: impacts of acute cold-stress and Vibrio harveyi challenge on the microRNA and mRNA response of barramundi (Lates calcarifer). Introduction: Barramundi (Lates calcarifer), also known as Asian seabass, are emerging globally as an important warmwater aquaculture species. However, disease outbreaks caused by Vibrio species, such as Vibrio harveyi, remain a major impediment […]
“In silico analyses of the Phocoenobacter atlanticus subspecies atlanticus subsp. nov. genome- insight into virulence factors (7171)”
Abstract In silico analyses of the Phocoenobacter atlanticus subspecies atlanticus subsp. nov. genome- insight into virulence factors Introduction: Outbreaks of pasteurellosis in Norwegian Atlantic salmon have become more frequent since 2018, threatening fish welfare and diminishing sustainable aquaculture practices. Currently autogenic vaccines are used in some areas, but genomic characterisation of bacterial surface proteins, virulence […]
“In silico characterization of the T cell receptor beta genes and locus structure in gilthead seabream (6928)”
Abstract In silico characterization of the T cell receptor beta genes and locus structure in gilthead seabream The adaptive immune response induced against pathogens or after vaccination is based on the clonal expansion of B and T lymphocytes, which express antigen-specific receptors, immunoglobulins and T cell receptors (TR), respectively. In farmed fish, the lack of […]
“In vivo challenges with Apolemia sp. and Atlantic salmon (Salmo salar) (6978)”
Abstract In vivo challenges with Apolemia sp. and Atlantic salmon (Salmo salar) In vivo challenges with Apolemia sp. and Atlantic salmon (Salmo salar) Introduction Jellyfish and siphonophore aggregations, including Apolemia sp., pose an increasing threat to salmon aquaculture. These gelatinous zooplankton can cause significant tissue damage in fish through contact with venomous cnidocytes (stinging cells), […]
“In vivo evaluation of a diet enriched with plant-based essential oils against Sparicotyle chrysophrii (7283)”
Abstract In vivo evaluation of a diet enriched with plant-based essential oils against Sparicotyle chrysophrii Introduction Sparicotyle chrysophrii poses a significant economic burden in net pen-based farming of gilthead sea bream (GSB) across the Mediterranean. Current control methods rely on formalin baths, which are costly and raise environmental and safety concerns, highlighting the need for […]
“In vivo pathogenesis studies in early-stage gilthead seabream (Sparus aurata) using GFP/RFP-tagged Vibrio harveyi (6955)”
Abstract In vivo pathogenesis studies in early-stage gilthead seabream (Sparus aurata) using GFP/RFP-tagged Vibrio harveyi Introduction In vivo studies of bacterial pathogenesis are often constrained by ethical concerns, regulatory limitations, and the infrastructural demands of maintaining live animals in controlled conditions. However, fish larvae in the pre-feeding yolk-sac stage are exempt from current animal experimentation […]
“In vivo transcriptomics reveals the important role of iron acquisition systems and secreted proteins in the virulence of the fish pathogen Flavobacterium psychrophilum (6975)”
Abstract In vivo transcriptomics reveals the important role of iron acquisition systems and secreted proteins in the virulence of the fish pathogen Flavobacterium psychrophilum Infectious diseases have a critical impact on aquaculture. Bacteria of the family Flavobacteriaceae (phylum Bacteroidota) are common in soil and aquatic environments, and several species are fish pathogens of utmost importance […]
“In-Silico Investigation of Fungal Sequences in Myxozoan and Cnidarian Genomes: Evidence of Horizontal Gene Transfer and Evolutionary Implications (7071)”
Abstract In-Silico Investigation of Fungal Sequences in Myxozoan and Cnidarian Genomes: Evidence of Horizontal Gene Transfer and Evolutionary Implications Introduction Horizontal gene transfer (HGT) is increasingly recognized as a significant driver of evolutionary innovation across diverse taxa, including eukaryotes. Notably, fungal sequences detected within the genomes of myxozoans, specialized metazoan parasites within Cnidaria, suggest complex […]
“In-Silico Investigation of Fungal Sequences in Myxozoan and Cnidarian Genomes: Evidence of Horizontal Gene Transfer and Evolutionary Implications (7078)”
Abstract In-Silico Investigation of Fungal Sequences in Myxozoan and Cnidarian Genomes: Evidence of Horizontal Gene Transfer and Evolutionary Implications Introduction: Horizontal gene transfer (HGT) is increasingly recognized as a significant driver of evolutionary innovation across diverse taxa, including eukaryotes. Notably, fungal sequences detected within the genomes of myxozoans, specialized metazoan parasites within Cnidaria, suggest complex […]
“Increase in bacterial gastroenteritis cases in salmonids at Finnish fish farms (7325)”
Abstract Increase in bacterial gastroenteritis cases in salmonids at Finnish fish farms Introduction: Rainbow trout gastroenteritis (RTGE) was diagnosed in Finland for the first time in 2010, and edwardsiellosis from farmed whitefish in 2000. In recent years, intestinal infections caused by these pathogens have been increasing in Finland. The climate in Finland has experienced a […]
“Increasing the immunogenicity of a salmon louse labial gland protein in a DNA vaccine (6953)”
Abstract Increasing the immunogenicity of a salmon louse labial gland protein in a DNA vaccine Introduction: Developing vaccines against ectoparasites presents significant challenges due to the limited exposure of these parasites to the host immune system. Effective immunization strategies must rely on immune effectors that impact the attachment site, hinder development, and/or alter the parasite’s […]
“Infection dynamics of infectious hematopoietic necrosis virus in rainbow trout during sexual maturation (7097)”
Abstract Infection dynamics of infectious hematopoietic necrosis virus in rainbow trout during sexual maturation Infectious hematopoietic necrosis (IHN) has caused significant losses in rainbow trout aquaculture in Japan. IHNV is detected in brood fish during the spawning season. A scenario in which depression of fish immunity during the maturation process may permit reactivation of latent […]
“Infection of the gibel carp (Carassius auratus gibelio Berg, 1932) with myxozoan parasites in a pond farm of Hungary (6986)”
Abstract Infection of the gibel carp (Carassius auratus gibelio Berg, 1932) with myxozoan parasites in a pond farm of Hungary Introduction: Gibel carp is a native and economically important freshwater species in China, but is considered a highly invasive species in Europe, where its wide-range habitat use threatens native fish populations, such as the crucian […]
“Infection with SAV2 and SAV3 results in differences in viral loads, pancreas disease progression, and growth impact – what are the mechanisms behind the differences? (7270)”
Abstract Infection with SAV2 and SAV3 results in differences in viral loads, pancreas disease progression, and growth impact – what are the mechanisms behind the differences? Fabian Kropp1, Fadi Alnaji2, Simen Nørstebø1, Marco Vignuzzi2, Øystein Evensen1, Turhan Markussen1, and Aase B. Mikalsen1 1Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway. 2A*STAR Infectious […]
“Infectious pancreatic necrosis virus can be transmitted through cohabitation from Atlantic cod (Gadus morhua) to Atlantic cod, Atlantic salmon (Salmo salar), Atlantic halibut (Hippoglossus hippiglossua), and lumpfish (Cyclopterus lumpus) (6897)”
Abstract Infectious pancreatic necrosis virus can be transmitted through cohabitation from Atlantic cod (Gadus morhua) to Atlantic cod, Atlantic salmon (Salmo salar), Atlantic halibut (Hippoglossus hippiglossua), and lumpfish (Cyclopterus lumpus) Introduction: In the aquaculture industry, diseases caused by viral pathogens has a great impact on fish welfare and cause major losses of fish. Atlantic cod […]
“Inflammatory and immune response of rainbow trout (Oncorhynchus mykiss) challenged with Lactococcus garvieae: observations in selected lines (7334)”
Abstract Inflammatory and immune response of rainbow trout (Oncorhynchus mykiss) challenged with Lactococcus garvieae: observations in selected lines Lactococcosis, a systemic progressive bacterial infection caused by L. garvieae (now also L. petauri/L. formosensis), causes significant losses in farmed rainbow trout. In addition to antibiotic treatment and prevention with effective vaccination, a control perspective against the […]
“Influence of temperature on the course of SVCV infection in carp (7133)”
Abstract Influence of temperature on the course of SVCV infection in carp Environmental temperature is a defining force in the ecology of freshwater fish and the pathogens that exploit them. Nowhere is this more evident than in spring viremia of carp virus (SVCV), an enveloped rhabdovirus whose outbreaks typically coincide with the cold edge of […]
“Insights into Aeromonas veronii in European seabass (Dicentrarchus labrax): A clinical and molecular perspective from Greece (6946)”
Abstract Insights into Aeromonas veronii in European seabass (Dicentrarchus labrax): A clinical and molecular perspective from Greece Introduction Aeromonas veronii has recently emerged as a significant pathogen in European seabass (Dicentrarchus labrax) aquaculture in Greece and Turkey. While previously was not considered as important as Vibrio anguillarum and Photobacterium damselae, A. veronii is now frequently associated with systemic infections, increased […]
“Integrated study on the biology and distribution of Red-mark syndrome-Midichloria-like organism in a Rainbow trout farm (7315)”
Abstract Integrated study on the biology and distribution of Red-mark syndrome-Midichloria-like organism in a Rainbow trout farm Introduction Red mark syndrome (RMS) is a disease that affects the Rainbow trout (Oncorhynchus mykiss), characterized by vivid red skin lesions, particularly affecting market-size trouts. Although not lethal, it causes economic losses due to the downgrading of the […]
“Introducing Vaccines to New Markets (7141)”
Abstract INTRODUCING VACCINES TO NEW MARKETS Global aquaculture production is booming as the demand for healthy and efficient protein grows. Intensified farming and high biomasses elevate the risk and impact of disease, and as a consequence the use of antibiotics has been increasing. Antimicrobial resistance (AMR) has become common in many farming environments, which represents […]
“Intron-exon dynamics and splicing mechanisms in myxozoa: insights from long-read sequencing (6907)”
Abstract Intron-exon dynamics and splicing mechanisms in myxozoa: insights from long-read sequencing Introduction: Spliceosomal introns play a central role in eukaryotic gene expression, yet their function and evolutionary dynamics remain enigmatic. While most animal introns range from 50–90 base pairs (bp), introns shorter than 30 bp have been considered absent in animals, plants, and fungi, […]
“Invasive Asian carp as potential reservoirs for emerging viral pathogens in the Great Lakes watershed (7363)”
Abstract Invasive Asian carp as potential reservoirs for emerging viral pathogens in the Great Lakes watershed Introduction Invasive Asian carp species, including Silver (Hypophthalmichthys molitrix), Bighead (H. nobilis), Grass (Ctenopharyngodon idella), and Black Carp (Mylopharyngodon piceus) after successfully establishing populations in the Mississippi River basin are now advancing towards the Great Lakes watershed through the […]
“Investigating the dynamics of parasites infecting Magallana gigas and closely associated invertebrates dominating oyster beds in the Gulf of Biscay (7152)”
Abstract Investigating the dynamics of parasites infecting Magallana gigas and closely associated invertebrates dominating oyster beds in the Gulf of Biscay Investigating how climate change will impact the dynamics of pathogens in coastal environments stands pivotal to the One Health perspective of the UN Oceans Decade. In this work, we explore parasites present in wild […]
“Investigating the expression of erythropoietin and erythropoietin receptor in atlantic salmon (salmo salar) (7248)”
Abstract investigating the expression of erythropoietin and erythropoietin receptor in atlantic salmon (salmo salar) the protein erythropoietin (epo) and its receptor, erythropoietin receptor (epo-r), are widely known for their role in regulating erythropoiesis, the production of red blood cells. despite extensive study of these proteins in mammalian species, fundamental knowledge is still missing in many […]
“Investigation of proteins identified in the secretory and excretory products (SEPs) of the infectious copepodid stage of the salmon louse Lepeophtheirus salmonis (7244)”
Abstract Investigation of proteins identified in the secretory and excretory products (SEPs) of the infectious copepodid stage of the salmon louse Lepeophtheirus salmonis Background: The salmon louse (Lepeophtheirus salmonis (Krøyer, 1837)) is a caligid copepod ectoparasite of salmonids that feeds upon the blood, mucus, and skin of its hosts. While later life stages are known […]
“Is proliferative kidney disease serious problem in the rivers of the Czech Republic? (7012)”
Abstract Is proliferative kidney disease serious problem in the rivers of the Czech Republic? Miroslava Palíková1,2, Ľubomír Pojezdal3, Hana Novotná1,2,3, Jitka Motlová3, Ivana Mikulíková1,2, Ivana Papežíková1,2, Ivona Toulová1,2 1University of Veterinary Sciences Brno; 2Mendel University in Brno; 3Veterinary Research Institute; Czech Republic Introduction: Proliferative kidney disease (PKD) affects both wild and farmed salmonid fish, causes […]
“ISA disease management – a holistic approach using surveillance and epidemiological assessment (7213)”
Abstract ISA disease management – a holistic approach using surveillance and epidemiological assessment Introduction: Fish health management programmes are meant to prevent spread of infectious agents. Successful management begins with prevention of disease. Several factors such as biosecurity, genetics, robustness of fish, handling procedures, vaccination efficacy and environmental factors play an important role in prevention. […]
“ISAV-HPR0 evolutionary dynamics and potential fitness determinants in Atlantic salmon smolt farms in the Faroe Islands. (7288)”
Abstract ISAV-HPR0 evolutionary dynamics and potential fitness determinants in Atlantic salmon smolt farms in the Faroe Islands. Introduction Infectious salmon anaemia (ISA) is a disease of farmed Atlantic salmon, Salmo salar L., listed by WOAH. We have demonstrated that the non-pathogenic ISAV-HPR0 is progenitor to pathogenic-ISAV and thus a reservoir and risk factor for the […]
“Isolation and molecular characterization of aeromonas veronii and shewanella sp. from diseased koi carp (cyprinus carpio var. koi) (6923)”
Abstract isolation and molecular characterization of aeromonas veronii and shewanella sp. from diseased koi carp (cyprinus carpio var. koi) koi carp (cyprinus carpio var. koi) are ornamental fish of high economic value, widely demanded in the international aquarium trade due to their vibrant colors, patterns, and graceful swimming behavior. a recently deceased koi carp exhibiting […]
“Italian IHNV low and highly pathogenic to rainbow trout displays different infection strategies (7178)”
Abstract Italian IHNV low and highly pathogenic to rainbow trout displays different infection strategies Introduction In recent years, Infectious Hematopoietic Necrosis has been displaying an increase in its distribution and incidence in Europe. In Italy, IHNV is characterized by a fast evolutionary rate and displacement phenomena have been observed with highly pathogenic IHNV strain replacing […]
“KEYNOTE TALK: Mediterranean Aquaculture in a New Era of Challenges Digital Transformation and Precision Fish Farming 7540”
Authors Abstract KEYNOTE TALK: Mediterranean Aquaculture in a New Era of Challenges Digital Transformation and Precision Fish Farming Marine aquaculture is a vital pillar of global food production, offering a lower environmental footprint compared to other sources of animal protein. In the Mediterranean, the sector is predominantly focused on European seabass and gilthead seabream, with […]
“Koi Herpes Virus Whole Genome Sequencing Using Nanopore Long Read Sequencing (7156)”
Abstract Koi Herpes Virus Whole Genome Sequencing Using Nanopore Long Read Sequencing Introduction Cyvirus cyprinidallo3, formerly Cyprinid herpesvirus 3 (CyHV-3) and also known as koi herpesvirus (KHV), has the largest genome (295 kbp) among all known herpesviruses. KHV is the aetiological agent of a serious disease that emerged in the 1990s, affecting common carp (Cyprinus […]
“Lactococcosis an emerging threat in marine Mediterranean aquaculture: a practical review – clinical cases, phylogeny, and molecular diagnostics” (7081)
Abstract Lactococcosis an emerging threat in marine Mediterranean aquaculture: a practical review – clinical cases, phylogeny, and molecular diagnostics Introduction Lactococcosis, primarily caused by Lactococcus garvieae, is an emerging threat to marine species in Mediterranean aquaculture. First identified in 1991 in Japan in Japanese amberjack (Seriola quinqueradiata), the disease has since spread globally, affecting both […]
“LactoTruite, a project to increase the resilience of trout farms towards the emergence of lactococcosis in Brittany (7026)”
Abstract LactoTruite, a project to increase the resilience of trout farms towards the emergence of lactococcosis in Brittany. Introduction The aquaculture sector must develop strategies to adapt towards the consequences of global warming, which could lead to emergence or re-emergence of infectious diseases favored by an increase in water temperature. Lactococcosis is a bacterial disease […]
“Live vaccine is a promising vaccine against nocardiosis in Japanese amberjack Seriola quinqueradiata (6984)”
Abstract Live vaccine is a promising vaccine against nocardiosis in Japanese amberjack Seriola quinqueradiata Introduction: Nocardiosis, a lethal granulomatous disease caused by aerobic actinomyces Nocardia spp., has been reported worldwide in many fish species. Mass mortality events of Seriola species including Japanese amberjack S. quinqueradiata infected with N. seriolae have caused significant economic losses in […]
“Long-term monitoring reveals significant decrease in common dab (Limanda limanda) hepatic neoplasms (6910)”
Abstract Long-term monitoring reveals significant decrease in common dab (Limanda limanda) hepatic neoplasms. The monitoring of hepatic neoplastic lesions using histopathology has been conducted in the UK under national monitoring activities since the 1980s. It contributes internationally to the OSPAR Convention Coordinated Environmental Monitoring Programme (CEMP) and informs progress towards Good Environmental Status within the […]
“Longitudinal study of molecular and functional characteristics of Saprolegnia isolates from Scottish fish farms and investigation into control methods (7083)”
Abstract Longitudinal study of molecular and functional characteristics of Saprolegnia isolates from Scottish fish farms and investigation into control methods Saprolegniosis in salmon is caused by Saprolegnia, which is an oomycete or water mould that can cause serious losses in the aquaculture industry. Saprolegnia only infects fish in the freshwater stage. Therefore, our study aims […]
“Machine Learning-Based Quantification of Cardiomyopathy Syndrome (CMS) Inflammation in Atlantic Salmon Hearts” (7201)
Abstract Machine Learning-Based Quantification of Cardiomyopathy Syndrome (CMS) Inflammation in Atlantic Salmon Hearts INTRODUCTION Cardiomyopathy syndrome (CMS) is a viral heart disease in farmed Atlantic salmon, caused by the piscine myocarditis virus (PMCV), leading to high morbidity and mortality. The disease is characterized by inflammation in the atrium and the spongious layer of the ventricle, resulting […]
“Marker Candidates and Reverse Genetic Approaches in Viral Hemorrhagic Septicemia Virus Ie Genotype (6256)”
Abstract Marker Candidates and Reverse Genetic Approaches in Viral Hemorrhagic Septicemia Virus Ie Genotype Introduction: Viral hemorrhagic septicemia virus (VHSV) is a rhabdovirus which also causes severe disease in several salmonid species. The disease has been found in all age groups of susceptible fish, with mortality rates reaching 80% to 100%, particularly in fry and […]
“Massive groupers die off due to Viral Nervous Necrosis and heatwave in Greece and Italy during 2024 (7183)”
Abstract Massive groupers die off due to Viral Nervous Necrosis and heatwave in Greece and Italy during 2024 Introduction Recurrent groupers mortalities have been reported in several areas of the Mediterranean Sea during the last decades. Laboratory investigation revealed that Betanodavirus is the most important pathogen at the base of these events, confirming groupers as […]
“MASSIVE TRANSCRIPTOMIC FOR EVALUATING MATERNAL PRIMING IN EUROPEAN SEA BASS (7075)”
Abstract MASSIVE TRANSCRIPTOMIC FOR EVALUATING MATERNAL PRIMING IN EUROPEAN SEA BASS Introduction Betanodavirus (NNV) has high prevalence in the Mediterranean area. Larvae are very susceptible; however, they cannot be protected by vaccination as the specimens has still not completely developed their immunocompetence. Maternal immune priming refers to the transfer of the maternal immunological experience to […]
“Metagenomic analysis of environmental samples for virus surveillance in Galicia (northwest of Spain) (7246)”
Abstract Metagenomic analysis of environmental samples for virus surveillance in Galicia (northwest of Spain) Aquaculture is one of the most important production sectors in Galicia (the northwest of Spain), headed by bivalve aquaculture. However, this sector is currently facing significant losses that may be attributed to the emergence of previously undescribed viruses and changes in […]
“Methionine dietary supplementation improves antiviral response of rainbow trout (Oncorhynchus mykiss) against viral hemorrhagic septicemia virus (VHSV) – a transcriptomic approach (7150)”
Abstract Methionine dietary supplementation improves antiviral response of rainbow trout (Oncorhynchus mykiss) against viral hemorrhagic septicemia virus (VHSV) – a transcriptomic approach Several studies have shown that methionine supplementation in fish diets enhances immune function, modulates inflammatory responses, and improves resistance to bacterial infections. These effects are mediated through the regulation of key metabolic pathways […]
“Methodological Limitations in eDNA-Based Detection of Bonamia ostreae: Implications for Non-Invasive Oyster Health Monitoring” (7518)
Abstract Methodological Limitations in eDNA-Based Detection of Bonamia ostreae: Implications for Non-Invasive Oyster Health Monitoring Bonamia ostreae is a protozoan parasite that causes high mortality in European flat oysters (Ostrea edulis), posing major challenges for hatchery production and restoration efforts. This study evaluated the use of environmental DNA (eDNA) from water, feces, and passive eDNA […]
“Micro-invaders camouflaged within known invaders: The potential sanitary risk of Pseudorasbora parva as a carrier of the nematode Anguillicoloides crassus (7149)”
Abstract Micro-invaders camouflaged within known invaders: The potential sanitary risk of Pseudorasbora parva as a carrier of the nematode Anguillicoloides crassus Introduction Pseudorasbora parva is a small freshwater cyprinid fish native to Asia and listed as invasive by the European Union. This fish is a known asymptomatic carrier of different pathogens that eventually may impact […]
“Microalgae-Associated Stenotrophomonas maltophilia as a Reservoir and Disseminator of Plasmid-Mediated Antibiotic Resistance in Aquatic Pathogen Networks (6996)”
Abstract Microalgae-Associated Stenotrophomonas maltophilia as a Reservoir and Disseminator of Plasmid-Mediated Antibiotic Resistance in Aquatic Pathogen Networks The spread of antibiotic resistance genes (ARGs) in aquatic environments poses a major threat to the sustainability of aquaculture and the health of aquatic organisms. Antibiotic use in aquaculture systems facilitates the emergence and spread of resistant bacteria […]
“Microbial communities of farmed mussel Mytilus galloprovincialis and seawater in the estuary of Krka River in Croatia (7338)”
Abstract Microbial communities of farmed mussel Mytilus galloprovincialis and seawater in the estuary of Krka River in Croatia Mytilus galloprovincialis, commonly known as the Mediterranean mussel, is significant shellfish species in Croatian marine aquaculture, with a total production of 926 tonnes live weight averaged across 2021, 2022 and 2023. The investigation of the mussel microbiome […]
“Microbial community structure of tapeworms tegument using electron microscopy and 16S rRNA sequencing (7163)”
Abstract Microbial community structure of tapeworms tegument using electron microscopy and 16S rRNA sequencing Introduction. Bacterial associations with tapeworms are especially interesting because this group of platyhelminths lacks all elements of a digestive system except absorption. It is known that the external surfaces of tapeworms are composed of a multifunctional syncytial tegument performing digestive-absorptive functions […]
“Microplastic occurrence in the digestive system of the European squid (Loligo vulgaris) from the Mediterranean Sea (7159)”
Abstract Microplastic occurrence in the digestive system of the European squid (Loligo vulgaris) from the Mediterranean Sea Microplastics (MPs) in the marine environment pose a potential threat to marine organisms worldwide. While MP ingestion in fish is well documented, much less is known about cephalopods, an ecologically important but understudied group. This study aimed to […]
“Mining NCBI sequence read archive (SRA) data reveals the presence of Macrobrachium rosenbergii golda virus (MrGV) in giant river prawn larvae across Asia (7065)”
Abstract Mining NCBI sequence read archive (SRA) data reveals the presence of Macrobrachium rosenbergii golda virus (MrGV) in giant river prawn larvae across Asia Background: Macrobrachium rosenbergii golda virus (MrGV) was first characterised in Macrobrachium rosenbergii larvae in 2020, associated with mass mortalities in multiple Southern Bangladesh prawn hatcheries. MrGV has since been detected in […]
“Modified flagellin retains immunostimulatory activity, bridging innate and adaptive immunity in trout (Oncorhynchus mykiss) (6998)”
Abstract Modified flagellin retains immunostimulatory activity, bridging innate and adaptive immunity in trout (Oncorhynchus mykiss) The aquaculture industry demands efficient adjuvants to enhance fish vaccines against bacterial and viral pathogens. Flagellin has been suggested as a potential immunostimulant and vaccine adjuvant due to its ability to induce Th1 and Th2 responses. Moreover, flagellin acts as […]
“Modulation of rainbow trout (Oncorhynchus mykiss) immune response by fliC expression in Yersinia ruckeri (6867)”
Abstract Modulation of rainbow trout (Oncorhynchus mykiss) immune response by fliC expression in Yersinia ruckeri Introduction: Enteric redmouth disease (ERM), caused by Yersinia ruckeri, presents a major challenge to salmonid aquaculture globally, resulting in considerable economic losses and compromising fish health. A key virulence factor of Y. ruckeri is its flagellum, which facilitates bacterial mo-tility, […]
“Molecular Analyses of the Distribution of PMCV” (7001)
Abstract Molecular Analyses of the Distribution of PMCV Introduction: Targeted control of cardiomyopathy syndrome (CMS) in Atlantic salmon relies on a solid understanding of the disease etiology and pathogenesis. Although CMS was first described histologically in the 1980s, it was not until nearly two decades later that it was shown to be transmissible and associated […]
“Molecular characterization of Proteocephalus (Cestoda) species parasitizing salmonids across Russian freshwater ecosystems (7166)”
Abstract Molecular characterization of Proteocephalus (Cestoda) species parasitizing salmonids across Russian freshwater ecosystems Introduction.Proteocephalus spp. are widely distributed cestode parasites infecting freshwater fishes. Recent taxonomic revisions within the genus have led to uncertainties regarding its species diversity. Under the current taxonomy, cestodes parasitizing salmonids in Russia have been classified as P. thymalli (infecting graylings, Thymallus […]
“Molecular Cloning and Characterization of C-X-C motif chemokine-11 (CXCL11) from seven-band grouper (Hyporthodus septemfasciatus) (7278)”
Abstract Molecular Cloning and Characterization of C-X-C motif chemokine-11 (CXCL11) from seven-band grouper (Hyporthodus septemfasciatus) Nervous necrosis virus (NNV) is a major viral pathogen in marine aquaculture, causing high mortality in economically important species such as the sevenband grouper (Hyporthodus septemfasciatus). Outbreaks of viral nervous necrosis (VNN) significantly affect larval stages, leading to substantial economic […]
“Molecular Cloning and Characterization of Peroxiredoxin-6 (Prx6) from seven-band grouper (Hyporthodus septemfasciatus) (6873)”
Abstract Molecular Cloning and Characterization of Peroxiredoxin-6 (Prx6) from seven-band grouper (Hyporthodus septemfasciatus) Peroxiredoxin 6 (Prx6) is a member of the 1-Cys Prx family that primarily catalyzes the reduction of peroxides and peroxynitrites, and is involved in H₂O₂-mediated signal transduction, cell differentiation, proliferation, and gene expression. Nervous necrosis virus (NNV), a major etiological agent causing […]
“Molecular Cloning and Characterization of Septin2 (Sept2) from seven band grouper (Hyporthodus septemfasciatus) (7273)”
Abstract Molecular Cloning and Characterization of Septin2 (Sept2) from seven band grouper (Hyporthodus septemfasciatus) The sevenband grouper (Hyporthodus septemfasciatus) is a commercially important species in Asian aquaculture, particularly in South Korea. However, it is highly susceptible to nervous necrosis virus (NNV), a virulent pathogen that infects over 120 marine and freshwater fish species. NNV induces […]
“Molecular diversity of aquatic Pseudomonas spp. with inhibitory activity against Saprolegnia water mould (Oomycota) (7121)”
Abstract Molecular diversity of aquatic Pseudomonas spp. with inhibitory activity against Saprolegnia water mould (Oomycota) Introduction: The fungal-like oomycete water moulds can occur in freshwater ecosystems and pose a significant threat to both freshwater environments and fish farms worldwide. The fish pathogen water moulds belong to the genera Saprolegnia, Achlya, and Phytium, and they cause […]
“Molecular serotyping of Vibrio harveyi: unveiling its genetic variability (7073)”
Abstract Molecular serotyping of Vibrio harveyi: unveiling its genetic variability Introduction Vibrio harveyi is a significant pathogen in marine aquaculture, affecting important Mediterranean species such as gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax). As no commercial vaccines are currently available, the use of autogenous vaccines is a common and essential tool for disease […]
“Molecular Trade-offs of Phage Resistance in Vibrio harveyi: Insights from transcriptomic profiling (7000)”
Abstract Molecular Trade-offs of Phage Resistance in Vibrio harveyi: Insights from transcriptomic profiling Introduction Phage therapy is emerging as a targeted and environmentally friendly sustainable alternative to antibiotics in aquaculture. However, a critical challenge is the emergence of phage-resistant bacterial strains, which could undermine treatment efficacy. Understanding the bacterial resistance mechanisms and their trade-offs is […]
“Monitoring of Tetracapsuloides bryosalmonae via eDNA: influencing environmental factors (6730)”
Abstract Monitoring of Tetracapsuloides bryosalmonae via eDNA: influencing environmental factors Tetracapsuloides bryosalmonae is the causative agent of Proliferative Kidney Disease (PKD), a temperature dependent disease in salmonids. The disease affects farmed and wild salmonid populations in the northern hemisphere, in Switzerland particularly wild brown trout (Salmo trutta). PKD was discussed as one contributing factor to […]
“Moritella viscosa and Tenacibaculum finnmarkense infection pressure in seawater (7310)”
Abstract Moritella viscosa and Tenacibaculum finnmarkense infection pressure in seawater FUNDING: Norwegian Seafood Research Fund (FHF), project no. 901838 INTRODUCTION: Skin ulcer conditions involving bacterial infections are currently among the most detrimental health and welfare challenges experienced in sea-based farming of Atlantic salmon in Norway, threatening the industry’s sustainability. In particular winter ulcer and tenacibaculosis, […]
“Morpho-functional insights into Sparicotyle chrysophrii: the Mediterranean aquaculture scourge (7128)”
Abstract Morpho-functional insights into Sparicotyle chrysophrii: the Mediterranean aquaculture scourge The polyopisthocotylean ectoparasite Sparicotyle chrysophrii is causing devastating effects on gilthead seabream net-pen farms across the Mediterranean. Adult parasites attach to host gills by the haptor, rigged with dozens of specialized clamps, and feed on fish blood. Severe anemia occurs during high intensity outbreaks, which […]
“Morphological and molecular characterization of Schistocephalus spp. (Cestoda) parasitizing sculpins (Cottidae) in Siberian lakes (Russia) (7167)”
Abstract Morphological and molecular characterization of Schistocephalus spp. (Cestoda) parasitizing sculpins (Cottidae) in Siberian lakes (Russia) Introduction. Cestodes of the genus Schistocephalus complete their life cycle through planktonic crustaceans, fish, and endothermic vertebrates (primarily birds). These parasites serve as important model organisms in host-parasite studies, with the Gasterosteus aculeatus – S. solidus plerocercoid system being […]
“Morphological and phylogenetic analysis of two Sphaerospora (sensu stricto) parasitizing the kidney of white seabream Diplodus sargus (7281)”
Abstract Morphological and phylogenetic analysis of two Sphaerospora (sensu stricto) parasitizing the kidney of white seabream Diplodus sargus Introduction: Myxosporeans are diverse endoparasitic cnidarians that primarily utilize fish as intermediate hosts. Members of the Sphaerospora (sensu stricto) lineage predominantly infect the urinary system of marine and freshwater fishes [1]. The white seabream (Diplodus sargus), a […]
“Morphological, molecular, and Phylogenetic characterization of the first African species of Hennegoides (Myxozoa : Myxobolidae) parasite of Citharinus gibbosus from Kadey River in Cameroon (7147)”
Abstract Morphological, molecular, and Phylogenetic characterization of the first African species of Hennegoides (Myxozoa : Myxobolidae) parasite of Citharinus gibbosus from Kadey River in Cameroon Introduction Citharinus gibbosus belongs to the family Citharinidae, one of the endemic fish families of African freshwaters. Little is known about its myxozoan diversity despite its distribution in several rivers […]
“Motivating systematic learning: evaluation of a points-based activity system in fish diseases education (7045)”
Abstract Motivating systematic learning: evaluation of a points-based activity system in fish diseases education As part of the “fish diseases” course, students were given the opportunity to earn activity points, which were added to their score on the final test. The aim of the point system was to encourage students to study systematically. During classes, […]
“Multiple regulatory mechanisms of a dietary phytobiotic additive to support fish skin health (6961)”
Abstract Multiple regulatory mechanisms of a dietary phytobiotic additive to support fish skin health Fish skin acts as a multifunctional barrier, providing both physical protection and immune defense. This structure includes the surface mucus, which traps pathogens and contains antimicrobial molecules; the epidermis, which produces mucus and responds rapidly to injury; and the dermis, which […]
“Mussel (Mytilus edulis) mortality events in association with Francisella halioticida in the Netherlands (6889)”
Abstract Mussel (Mytilus edulis) mortality events in association with Francisella halioticida in the Netherlands Mass mortality events of mussels have been reported in the Netherlands as early as 1949, when the introduction of Mytilicola intestinales was attributed to a massive decline in the mussel population. Other mortality events have been attributed to anoxic conditions created […]
“Myxobolus cerebralis discovered in cartilage of ribs in wild Atlantic salmon Salmo salar and brown trout Salmo trutta in Norway (7059)”
Abstract Myxobolus cerebralis discovered in cartilage of ribs in wild Atlantic salmon Salmo salar and brown trout Salmo trutta in Norway Introduction: Myxobolus cerebralis is the causative agent of whirling disease in salmonids. The first discovery of M.cerebralis in Norway was in farmed rainbow trout (Oncorrhyncus mykiss) in earth ponds near Oslo in 1970. Several […]
“Myxozoans detected in the gallbladders of farmed marine fishes in Japan (7109)”
Abstract Myxozoans detected in the gallbladders of farmed marine fishes in Japan A disease characterized by emaciation has recently been reported in farmed greater amberjack (Seriola dumerili) in western Japan. Although the causative agent remains unidentified, myxospores of the genus Ceratomyxa have been frequently found in the gallbladders of affected fish. In Japan, only three […]
“Negative effects of a high starch diet in European perch (7208)”
Abstract Negative effects of a high starch diet in European perch Introduction European perch (Perca fluviatilis) is a native fish species, which is highly appreciated for its meat in Switzerland. However, most of the perch consumed in Switzerland originates from wild populations in Eastern Europe. To increase the amount of locally produced aquaculture fish, a […]
“Nematodes in the liver of European flounder (Platichthys flesus) from the southern Baltic Sea (6852)”
Abstract Nematodes in the liver of European flounder (Platichthys flesus) from the southern Baltic Sea Over the past decade, the presence of parasitic nematodes has been increasingly reported in numerous fish species across the Baltic Sea, with particular emphasis on the liver parasite Contracaecum spp. Anisakidae nematodes (such as Anisakis sp. and Contracaecum sp.) are […]
“Nervous necrosis virus egress from neuronal GB cell uses an alternative secretory pathway dependent on Rab1a and myosin IIB (7131)”
Abstract Nervous necrosis virus egress from neuronal GB cell uses an alternative secretory pathway dependent on Rab1a and myosin IIB Introduction Nervous necrosis virus (NNV) is a highly pathogenic virus that poses a major threat to various fish species worldwide. Although NNV has been investigated for decades, the egress mechanisms are still unknown. Methodology For […]
“Nervous necrosis virus reassortment in adaptation to rising temperature (7132)”
Abstract Nervous necrosis virus reassortment in adaptation to rising temperature Viral nervous necrosis (VNN) poses a major concern in fish health management. This disease is caused by the nervous necrosis virus (NNV), an RNA virus whose genome is segmented into two molecules, RNA1 and RNA2. NNV is capable of replicating across a wide temperature range, […]
“New findings on hyperpigmentation in common dab (Limanda limanda) (7358)”
Abstract New findings on hyperpigmentation in common dab (Limanda limanda) Introduction: In recent years, the increasing incidence of hyperpigmentation in the common dab (Limanda limanda) has been investigated in connection with environmental stressors, pollution and pathogens. This pigment anomaly has been linked to hyperplasia of pigment cells (melanophores and iridophores). Heavily pigmented dab exhibited a […]
“Nodular Gill Disease in Swiss Aquaculture – Characterization of histological lesions in gills of rainbow trout (Oncorhynchus mykiss) and an outlook on diagnosis of involved amoeba species (7056)”
Abstract Nodular Gill Disease in Swiss Aquaculture – Characterization of histological lesions in gills of rainbow trout (Oncorhynchus mykiss) and an outlook on diagnosis of involved amoeba species Nodular gill disease (NGD) is an infectious disease associated with an infestation of the gills with amoebae, leading to proliferative gill lesions and consequently respiratory difficulties and […]
“Non-Invasive Monitoring of Miamiensis avidus in Seawater Using a Real-Time PCR Targeting the cox1 Gene (7308)”
Abstract Non-Invasive Monitoring of Miamiensis avidus in Seawater Using a Real-Time PCR Targeting the cox1 Gene Introduction: Miamiensis avidus (syn. Philasterides dicentrarchi) causes significant mortality and economic loss in olive flounder (Paralichthys olivaceus) aquaculture. Effective disease control requires sensitive detection tools for early diagnosis and monitoring. This study aimed to develop a sensitive and specific […]
“Occurrence of Kudoa sp. induced post-mortem myoliquefaction in Atlantic mackerel (Scomber scombrus) landed in Ireland (7080)”
Abstract Occurrence of Kudoa sp. induced post-mortem myoliquefaction in Atlantic mackerel (Scomber scombrus) landed in Ireland Atlantic mackerel (Scomber scombrus) is Ireland’s most valuable wild-caught fish species. In recent years, Irish pelagic processors have noted an increase in the occurrence of post-mortem myoliquefaction, most commonly known as ‘soft flesh’ or ‘jelly flesh’. Studies from across […]
“Occurrence of Persistence of Infectious Hematopoietic Necrosis Virus in Rainbow Trout Surviving in Experimental Infection (7115)”
Abstract Occurrence of Persistence of Infectious Hematopoietic Necrosis Virus in Rainbow Trout Surviving in Experimental Infection Rainbow trout Oncorhyncus mykiss is the most commonly produced trout species in Japan. Infectious hematopoietic necrosis (IHN) caused by IHNV is one of the most serious diseases in rainbow trout aquaculture. After recovering from IHN, the fish becomes apparently […]
“Ontario Ministry of Natural Resources provincial hatchery fish health monitoring status in Ontario, Canada (2022–2025) (6909)”
Abstract Ontario Ministry of Natural Resources provincial hatchery fish health monitoring status in Ontario, Canada (2022–2025) Introduction. Between April 1, 2022, and March 31, 2025, the Ontario Ministry of Natural Resources (MNR) undertook a comprehensive fish health monitoring initiative in collaboration with the Animal Health Laboratory at the University of Guelph. The primary objective was to […]
“Opercular shortening and deformities in salmonids (Salmo salar and genus Oncorhynchus): A scoping review (6990)”
Abstract Opercular shortening and deformities in salmonids (Salmo salar and genus Oncorhynchus): A scoping review In the 2023 Norwegian Fish Health Report, opercular shortening was identified by fish health personnel as one of the five main causes of reduced growth and welfare in the hatchery phase of salmon and rainbow trout production. Opercular shortening is […]
“Optimized methods for water-based pathogen detection in aquaculture systems (6849)”
Abstract Optimized methods for water-based pathogen detection in aquaculture systems Specific and sensitive tools for detecting and monitoring pathogens in the aquatic environment can be crucial for preventing the spread of infectious agents in aquaculture facilities. Monitoring waterborne pathogens through water filtration and subsequent detection using target-specific (RT-) qPCRs and/or sequencing is an approach that […]
“Oral delivery of bioencapsulated virus-like particles confers effective protection against nervous necrosis virus in farmed fish (6918)”
Abstract Oral delivery of bioencapsulated virus-like particles confers effective protection against nervous necrosis virus in farmed fish Introduction Nervous necrosis virus (NNV), a member of the Nodaviridae family, infects over 170 fish species and causes significant economic losses in the aquaculture industry. Current injectable vaccines are unsuitable for large-scale application due to handling stress and […]
“Orally delivered OMVs from Photobacterium damselae subsp. picicida are efficiently taken up in the intestine of European sea bass and trout, highlighting their potential for oral fish vaccination (7008)”
Abstract Orally delivered OMVs from Photobacterium damselae subsp. picicida are efficiently taken up in the intestine of European sea bass and trout, highlighting their potential for oral fish vaccination Outer membrane vesicles (OMVs) are nano-sized particles naturally released from the outer membrane of Gram-negative bacteria during growth. These vesicles carry a wide array of bioactive […]
“Outbreaks of Infection Haemopoietic Necrosis (IHN) in Denmark (7212)”
Abstract Outbreaks of Infection Haemopoietic Necrosis (IHN) in Denmark On the 18th of May 2021, Denmark declared its first outbreak of infectious hematopoietic necrosis (IHN) ever. Denmark was previously declared free from infection with IHN virus and had surveillance in place according to EU Regulation 2021/620. By the end of September, 11 cases of IHNV […]
“Pacific oyster explants provide new controlled model to study OsHV-1 replication (7203)”
Abstract Pacific oyster explants provide new controlled model to study OsHV-1 replication Since the 1990s, Pacific oysters (Magallana gigas), particularly juveniles, have experienced recurrent mass mortality events. These events are strongly associated with infection by Ostreid herpesvirus type 1 (OsHV-1), a major viral pathogen that causes significant economic losses in oyster aquaculture. Despite the importance […]
“Parasites found in salmon (Salmo salar) from the southern Baltic Sea (6861)”
Abstract Parasites found in salmon (Salmo salar) from the southern Baltic Sea Surprisingly, the information related to the presence of parasites in salmon (Salmo salar) from the southern Baltic Sea is scarce, even though this fish is popular in human consumption. Salmons from Baltic rivers have been grouped into 6 Assessment Units based on management objectives, biological […]
“Parasitic diversity of the endemic Gobiidae species, Zosterisessor ophiocephalus (Pallas, 1814) along the Tunisian coast (Mediterranean Sea) (7186)”
Abstract Parasitic diversity of the endemic Gobiidae species, Zosterisessor ophiocephalus (Pallas, 1814) along the Tunisian coast (Mediterranean Sea) Zosterisessor ophiocephalus, an endemic goby species from the Mediterranean Sea, represents a valuable indicator of marine ecosystem health and local environmental conditions. This study provides, for the first time, a comprehensive assessment of the parasitic diversity of […]
“Partial Validation of Two Real-Time PCR Detection Methods for Decapod Iridescent Virus (7422)”
Abstract Partial Validation of Two Real-Time PCR Detection Methods for Decapod Iridescent Virus The Decapod Iridescent Virus (DIV1) is a double-stranded DNA virus. According to the criteria set by the World Organisation for Animal Health (WOAH), there are eight species susceptible to DIV1 infection, including the whiteleg shrimp, ridgetail prawn, red claw crayfish, red swamp […]
“Phagocytosis and respiratory burst of Atlantic salmon (Salmo salar) head-kidney leukocytes in response to Renibacterium salmoninarum exposure (7030)”
Abstract Phagocytosis and respiratory burst of Atlantic salmon (Salmo salar) head-kidney leukocytes in response to Renibacterium salmoninarum exposure Introduction: In recent years there has been an increase in reports of Bacterial Kidney Disease (BKD) in the Norwegian salmon farming industry, a disease caused by infection by the facultatively intracellular bacterium Renibacterium salmoninarum. BKD results in […]
“Photobacteriosis: Comparative Genomics and Protein Targets for Innovative Vaccine Development (6939)”
Abstract Photobacteriosis: Comparative Genomics and Protein Targets for Innovative Vaccine Development Introduction Photobacterium damselae subsp. piscicida (Pdp), the causative agent of photobacteriosis, is a major marine aquaculture pathogen, causing high mortality and economic losses, especially during summer when water temperature exceeds 23°C. Although commercial vaccines are available, their protective efficacy is inconsistent, with outbreaks still […]
“PHYLOGENETIC AND GENOMIC ANALYSIS OF Photobacterium damselae subsp. piscicida REVEALS GEOGRAPHICAL DIVERSITY BASED ON VIRULENCE PLASMIDS (7319)”
Abstract PHYLOGENETIC AND GENOMIC ANALYSIS OF Photobacterium damselae subsp. piscicida REVEALS GEOGRAPHICAL DIVERSITY BASED ON VIRULENCE PLASMIDS Photobacterium damselae subsp. piscicida (Pdp) is the causative agent of photobacteriosis, an endemic disease in Mediterranean aquaculture with special relevance in sea bass and sea bream farms. This work focuses on the phylogenetic and genomic analysis of Pdp […]
“Phylogenetic reconstruction of Paramoebidae brings into question the validity of the genus Neoparamoeba (7295)”
Abstract Phylogenetic reconstruction of Paramoebidae brings into question the validity of the genus Neoparamoeba Introduction Throughout the literature, both Paramoeba perurans and Neoparamoeba perurans are accepted names for the causative agent of amoebic gill disease, with no consensus. Historically, the two genera were separated morphologically based on the presence or absence of microscales. However, recent […]
“Phylogenomic evidence for host specialization and genetic divergence in OsHV-1 infecting Magallana gigas and Ostrea edulis (6965)”
Abstract Phylogenomic evidence for host specialization and genetic divergence in OsHV-1 infecting Magallana gigas and Ostrea edulis Cross-species transmission is one of the most significant causes of disease emergence in humans and other species. The Ostreid Herpesvirus type 1 has mostly been detected in the Pacific oyster Magallana gigas in the context of mortality events. […]
“Phylogeny and histopathology of three Henneguya species parasitizing the Amazonian fish Cynodon gibbus (7069)”
Abstract Phylogeny and histopathology of three Henneguya species parasitizing the Amazonian fish Cynodon gibbus Introduction Henneguya is a genus of endoparasitic myxozoans primarily known to infect freshwater fish. The Amazon Basin, one of the most biodiverse regions on Earth, harbors a vast array of fish species, many of which remain poorly studied from a parasitological […]
“Physiological differences in Saprolgenia parasitica strains (7280)”
Abstract Physiological differences in Saprolgenia parasitica strains Introduction Saprolegniosis is a disease caused by oomycetes of the genus Saprolegnia. During the recent years, saprolegniosis outbreaks have resulted in mass-mortalities of salmonids reared in aquaculture facilities. These outbreaks significantly threaten both the maintenance of hatchery broodstocks of endangered salmonids and production of salmonids for human consumption. […]
“Pisicirickettsia salmonis in turbot (7037)”
Abstract Piscirickettsia salmonis in turbot Introduction Pisicirickettsia salmonis is a well-established intracellular pathogen of farmed Atlantic salmon around the world. The bacterium has also been detected from a number of other hosts including lumpfish, sea-bass and rainbow trout. In February 2025, increased mortality was observed in a population of turbot, Scophthalmus maximus (80-160g), farmed in Norway. […]
“PKD Beyond Trout: Investigating Minnows as Potential Alternative Intermediate Hosts for Tetracapsuloides bryosalmonae (7038)”
Abstract PKD Beyond Trout: Investigating Minnows as Potential Alternative Intermediate Hosts for Tetracapsuloides bryosalmonae Introduction Proliferative Kidney Disease (PKD) is caused by the myxozoan endoparasite Tetracapsuloides bryosalmonae, predominantly leading to high mortality rates in young brown trout (Salmo trutta). Infection occurs when spores excreted from the primary host, freshwater bryozoans, enter the fish via the […]
“Polyvalent DNA vaccines targeting salmon louse labial gland proteins (6966)”
Abstract Orally delivered OMVs from Photobacterium damselae subsp. picicida are efficiently taken up in the intestine of European sea bass and trout, highlighting their potential for oral fish vaccination Outer membrane vesicles (OMVs) are nano-sized particles naturally released from the outer membrane of Gram-negative bacteria during growth. These vesicles carry a wide array of bioactive […]
“Population structure and genetic identification of Anisakis spp. from juvenile Atlantic bluefin tuna from eastern Adriatic sea (7351)”
Abstract Population structure and genetic identification of Anisakis spp. from juvenile Atlantic bluefin tuna from eastern Adriatic sea Introduction: Nematodes of the genus Anisakis Dujardin, 1845 are recognised as an emerging public health problem due to their zoonotic potential and ability to cause anisakiasis after consuming raw or undercooked seafood. In the life cycle of […]
“Potential feed-related outbreak of mass mortality in salmon and sea-trout fry (7332)”
Abstract Potential feed-related outbreak of mass mortality in salmon and sea-trout fry In 2023, outbreaks of disease with erratic swimming and lethargy followed by mortality occurred soon after start feeding in several Swedish restocking farms holding Baltic salmon (Salmo salar) and sea trout (Salmo trutta). Repeated submission of bacteriological (the usual cause of mortality in […]
“Potential of eDNA approaches for the monitoring of marine bivalve parasites: example of the ROME project (7035)”
Abstract Potential of eDNA approaches for the monitoring of marine bivalve parasites: example of the ROME project Environmental DNA approaches are increasingly used to detect microorganisms in environmental compartments, including water. They show considerable advantages to investigate and monitor microorganisms such as bivalve parasites. An eDNA-based monitoring network named ROME (Réseau d’Observatoires de Microbiologie Environmentale […]
“Preliminary analysis for the identification and localization of biomarkers of health and environmental stress in flat oyster (Ostrea edulis) (7345)”
Abstract Preliminary analysis for the identification and localization of biomarkers of health and environmental stress in flat oyster (Ostrea edulis) The flat oyster (Ostrea edulis) is a bivalve mollusk (Ostreidae family) native to Europe. Historically, its distribution area consisted of a wide coastal range from Norway to Morocco in the Atlantic, the entire Mediterranean basin, […]
“Preliminary evidence of a life stage specific antibody response to Cardicola spp. (Trematoda: Aporocotylidae) in ranched Southern bluefin tuna, Thunnus maccoyii (7025)”
Abstract Preliminary evidence of a life stage specific antibody response to Cardicola spp. (Trematoda: Aporocotylidae) in ranched Southern bluefin tuna, Thunnus maccoyii Introduction Cardicola forsteri (Trematoda: Aporocotylidae) is a significant pathogen for the Australian Southern bluefin tuna (SBT, Thunnus maccoyii) aquaculture industry infecting up to 100% of fish. This study investigated the relationship between the […]
“Preliminary results on investigation of vertical transmission of Betanodavirus in Sparus aurata (7176)”
Abstract Preliminary results on investigation of vertical transmission of Betanodavirus in Sparus aurata Introduction Viral nervous necrosis (VNN) is an endemic disease in the Mediterranean, characterized by both horizontal and vertical transmission routes. While vertical transmission has been experimentally confirmed in only a limited number of species – such as European sea bass (Dicentrarchus labrax), […]
“Preservation of G Protein Structure Determines Immune Protection of Inactivated VHSV Vaccines in Paralichthys olivaceus (7303)”
Abstract Preservation of G Protein Structure Determines Immune Protection of Inactivated VHSV Vaccines in Paralichthys olivaceus Introduction: Viral hemorrhagic septicemia virus (VHSV), belonging to the genus Novirhabdovirus and family Rhabdoviridae, is a major viral disease that causes economic loss in the olive flounder (Paralichthys olivaceus). Therefore, it is essential to develop effective preventive measures against […]
“Prime-boost vaccination with recombinant lice antigens confers protection against experimental Lepeophtheirus salmonis infestation in Atlantic salmon (Salmo salar L.) (7249)”
Abstract Prime-boost vaccination with recombinant lice antigens confers protection against experimental Lepeophtheirus salmonis infestation in Atlantic salmon (Salmo salar L.) Koestan Gadan, Therese Corneliussen and Øystein Evensen Norwegian University of Life Sciences Faculty of Veterinary Medicine, P.O. Box 5003, N-1432 Ås, Norway, Sea lice, particularly Lepeophtheirus salmonis, are ectoparasitic copepods that present a major challenge […]
“Probiotic Colonization and Antagonism of Moritella viscosa in Atlantic Salmon (7144)”
Abstract Probiotic Colonization and Antagonism of Moritella viscosa in Atlantic Salmon Introduction Winter ulcers, primarily caused by Moritella viscosa, are a leading bacterial disease affecting Atlantic salmon (Salmo salar), especially during colder seasons. With limited efficacy from existing vaccines and increasing restrictions on antibiotic use, probiotic bacteria have emerged as a promising alternative. Previous studies […]
“Proteases and their inhibitors involved in the metamorphoses of zoonotic Anisakis pegreffii larvae and infection success of paratenic and accidental hosts (7362)”
Abstract Proteases and their inhibitors involved in the metamorphoses of zoonotic Anisakis pegreffii larvae and infection success of paratenic and accidental hosts Anisakiasis is a fish-borne zoonosis caused by the accidental ingestion of live and/or dead third-stage larvae (L3) of the genus Anisakis Dujardin, 1845, and it is considered fifth in the European risk ranking […]
“Proteomic profiling of the serological response to a chemically-inactivated nodavirus vaccine in European sea bass Dicentrarchus labrax (7257)”
Abstract Proteomic profiling of the serological response to a chemically-inactivated nodavirus vaccine in European sea bass Dicentrarchus labrax Analysing animal responses to immunization is pivotal in vaccine development by evaluating immune response, assessing vaccine safety and efficacy, and providing crucial insights into immune protection mechanisms. These insights are indispensable for advancing vaccines through trial stages […]
“Protocol optimization for leucocytes isolation from the blood of Atlantic salmon (7268)”
Abstract Protocol optimization for leucocytes isolation from the blood of Atlantic salmon Isolation of peripheral blood leukocytes (PBL) is an important tool for studying immune responses and understanding the infection dynamics. Isolation of macrophages from Atlantic salmon head kidney has been described in several studies while fewer studies have been used the isolation of PBLs. […]
“PRV3 in Italy: results from a local surveillance study (7181)”
Abstract PRV3 in Italy: results from a local surveillance study Introduction PRV3, a member of the Orthoreovirus genus, has been associated with heart inflammation and muscle disease in rainbow trout (O. mykiss) in certain countries. Orthoreoviruses are widespread within their respective niches, and their detection alone does not necessarily imply disease causality. PRV3 has been […]
“Quantification of myocardial inflammation in salmon hearts using a machine learning model (7305)”
Abstract Quantification of myocardial inflammation in salmon hearts using a machine learning model Heart and skeletal muscle inflammation (HSMI) and cardiomyopathy syndrome (CMS) are among the most important disease problems in the Norwegian salmon industry, causing significant welfare problems and economic losses. In both conditions, myocardial inflammation is a prominent feature and is considered the […]
“Rapid evolution and lineage-specific gene gain in myxozoans: The genome of the blood parasite Sphaerospora molnari (7200)”
Abstract Rapid evolution and lineage-specific gene gain in myxozoans: The genome of the blood parasite Sphaerospora molnari Myxozoans are known to be quite rigorous regarding gene loss in their genomes, with reductions including genes considered hallmarks of metazoan development. However, we also observe large-scale duplication events of genes relevant to their parasitic lifestyle and are […]
“Reassessment of Myxobolus toyamai morphology in koi carp using an enhanced Giemsa warming technique: A first report from Vietnam (7190)”
Abstract Reassessment of Myxobolus toyamai morphology in koi carp using an enhanced Giemsa warming technique: A first report from Vietnam Myxobolus toyamai, a well-established gill parasite of common carp, Cyprinus carpio, has been implicated in infections across multiple continents. Despite numerous attempts to classify this parasite based on the structural features of its polar capsules, […]
“Regulatory Mechanism of Protein Kinase R in Giant Grouper and Interaction with Nervous Necrosis Virus (NNV) (7091)”
Abstract Regulatory Mechanism of Protein Kinase R in Giant Grouper and Interaction with Nervous Necrosis Virus (NNV) Protein kinase R (PKR) is a key antiviral protein that is activated by viral double-stranded RNA (dsRNA) and mediates host defense by phosphorylating eIF2α, leading to inhibition of protein translation and viral replication. Our previous research demonstrated that […]
“Release of Tetracapsuloides bryosalmonae spores via fish urine and subsequent removal by filter-feeding freshwater sponges – insights from eDNA analyses (7240)”
Abstract Release of Tetracapsuloides bryosalmonae spores via fish urine and subsequent removal by filter-feeding freshwater sponges – insights from eDNA analyses Introduction: Tetracapsuloides bryosalmonae (Tb), the causative agent of proliferative kidney disease in salmonids, poses a significant threat to wild and farmed fish populations. Understanding the dynamics of Tb spore release and potential natural mitigation […]
“Revolutionizing Farmed Fish Health Surveillance with non-invasive Multiomics Biomarkers (7346)”
Abstract Revolutionizing Farmed Fish Health Surveillance with non-invasive Multiomics Biomarkers INTRODUCTION The growing demand for high-quality animal protein is placing increased pressure on aquaculture to adopt sustainable practices that balance productivity and animal welfare. Climate change adds further stressors, such as temperature shifts and increased handling. In response, the IGNITION project is developing innovative tools […]
“Role of European sea bass proteins in the course of betanodavirus infections (6942)”
Abstract Role of European sea bass proteins in the course of betanodavirus infections Introduction Fish rtp3, belonging to the receptor-transporting protein (RTP) family, has been described as a viral responsive gene. In previous studies, we have characterized two European sea bass (Dicentrarchus labrax) rtp3 genes (rtp3X1, rtp3X2). In addition, an in vivo study revealed induction […]
“Role of methionine supplementation in immune modulation and resistance of Atlantic salmon (Salmo salar) to Salmon Louse (Lepeophtheirus salmonis) (7164)”
Abstract Role of methionine supplementation in immune modulation and resistance of Atlantic salmon (Salmo salar) to Salmon Louse (Lepeophtheirus salmonis) Salmo salar aquaculture is severely affected by Lepeophtheirus salmonis infections, resulting in substantial economic losses. In recent years, numerous studies have investigated the host-pathogen interaction in order to develop effective treatments or prophylactic measures against […]
“RPA based on-site molecular diagnostics for salmon virus infection diseases (7145)”
Abstract RPA based on-site molecular diagnostics for salmon virus infection diseases Introduction Infectious diseases in aquaculture cause substantial economic losses, demanding novel, effective and field-deployable solutions for early and rapid diagnostics. Recombinase Polymerase Amplification (RPA) technology offers tremendous potential for on-site molecular diagnostics in fish infectious disease control due to its isothermal amplification, speed, and […]
“RT-qPCR at ¨points-of-need¨ for rapid and reliable detection of Atlantic salmon (Salmo salar) cardiac viral infections (7103)”
Abstract RT-qPCR at ¨points-of-need¨ for rapid and reliable detection of Atlantic salmon (Salmo salar) cardiac viral infections Myocardial infection in salmon with Piscine Myocarditis virus (PMCV), Piscine Orthoreovirus (PRV) and Salmonid alphavirus (SAV), pose challenges for the fish health and welfare and may have significant economic implications. Rapid and reliable viral detection is essential for […]
“Salmonid alphaviruses undergo genomic recombination at high frequencies during infection (7316)”
Abstract Salmonid alphaviruses undergo genomic recombination at high frequencies during infection Introduction Pancreas disease (PD), caused by salmonid alphavirus (SAV) is a major challenge in salmonid aquaculture. Norwegian outbreaks are caused by two genotypes, SAV2 and SAV3, and although there is a general geographical separation between the two, co-infections have been documented. This has raised […]
“Screening of five species of asymptomatic molluscs specimens sampled in coastal areas of Ria de Arousa, Galicia (NW Spain) reveals presence of Perkinsus olseni in two species of clams (7299)”
Abstract Screening of five species of asymptomatic molluscs specimens sampled in coastal areas of Ria de Arousa, Galicia (NW Spain) reveals presence of Perkinsus olseni in two species of clams. As part of a viruses and parasites surveillance in five shellfish coastal areas of Ría de Arousa (NW Spain), three types of samples were taken: […]
“Serotyping of Norwegian and Scottish Yersinia ruckeri strains – antibody-based methods for O-serotyping (7053)”
Abstract Serotyping of Norwegian and Scottish Yersinia ruckeri strains – antibody-based methods for O-serotyping Yersinia ruckeri is a Gram negative bacterium that causes the disease Enteric RedMouth (ERM) disease in trout and yersiniosis in salmon. The classification systems for this pathogen are many and confusing and not very consistent. Terminology is frequently misunderstood, and O-serotypes […]
“Shedding light on the frontal filament structure and composition of Lepeophtheirus salmonis salmonis (7023)”
Abstract Shedding light on the frontal filament structure and composition of Lepeophtheirus salmonis salmonis Introduction: L. salmonis is a parasitic copepod prevalent in the northern hemisphere that infects salmonids. Its life cycle begins with two nauplii stages, followed by the copepodid stage, two chalimus stages as well as two preadult stages before the final molt […]
“Simultaneous detection and quantification of fish parasites and invertebrate hosts in riverine systems using environmental DNA (7258)”
Abstract Simultaneous detection and quantification of fish parasites and invertebrate hosts in riverine systems using environmental DNA Knowledge of how host species, vectors and infection reservoirs are distributed and disperse in the environment is crucial for management and control of disease outbreaks. Wildlife diseases caused by pathogens with multiple host life cycles or broad host […]
“Single cell transcriptome sequencing of brown trout (Salmo trutta) immune cells – a baseline study (6825)”
Abstract Single cell transcriptome sequencing of brown trout (Salmo trutta) immune cells – a baseline study Profiling gene expression at the single-cell level offers unprecedented insights into the vertebrate immune system. While such studies in non-model organisms present unique challenges – such as evolutionary peculiarities – high-resolution data can yield valuable knowledge about ecologically and […]
“Single-cell sequencing of immune cells provides insights into the early immune response of brown trout (Salmo trutta) to Tetracapsuloides bryosalmonae infection (6968)”
Abstract Single-cell sequencing of immune cells provides insights into the early immune response of brown trout (Salmo trutta) to Tetracapsuloides bryosalmonae infection Understanding how environmental factors shape immune responses is essential to protecting vulnerable fish populations in a changing climate. Brown trout (Salmo trutta) are both an ecologically important species as apex predators in their […]
“Single-nuclei RNA Sequencing Reveals the Underpinnings of the Variation in Sea Lice Resistance Among Host Salmonid Species (7365)”
Abstract Single-nuclei RNA Sequencing Reveals the Underpinnings of the Variation in Sea Lice Resistance Among Host Salmonid Species Sea lice pose one of the greatest threats to wild and farmed populations of Atlantic Salmon (Salmo salar). However, the resistance to this ectoparasite varies markedly among salmonid species, with certain Pacific salmonids (Oncorhynchus spp.) demonstrating remarkable […]
“SNP-Based High-Resolution Melting Analysis for Precise Differentiation of Edwardsiella anguillarum and Edwardsiella piscicida in Aquaculture (6813)”
Abstract SNP-Based High-Resolution Melting Analysis for Precise Differentiation of Edwardsiella anguillarum and Edwardsiella piscicida in Aquaculture This study aimed to establish a molecular method for distinguishing between two closely related Edwardsiella species, Edwardsiella anguillarum and Edwardsiella piscicida, both of which are responsible for Edwardsiellosis in fish aquaculture. To investigate their genetic differentiation, whole-genome single nucleotide […]
“Soaking up the sun: Vitamin D3 production in Atlantic salmon (6696)”
Abstract Soaking up the sun: Vitamin D3 production in Atlantic salmon Introduction Vitamin D3 (VD3), a steroid hormone is the main form of vitamin D in fish. Traditionally, fish have been thought to obtain most of their VD3 through diet, but dietary levels do not explain the high levels of VD3 that accumulate in liver […]
“Soy protein concentrate replacement with methylococcus capsulatus can support a vaccination response in atlantic salmon (salmo salar) (7111)”
Abstract soy protein concentrate replacement with methylococcus capsulatus can support a vaccination response in atlantic salmon (salmo salar) introduction soy protein is known for producing an inflammatory status in the fish gut, which has a negative effect both in growth performance and in the welfare of the fish. this effect occurs both when the soy […]
“Spatiotemporal detection of Aphanomyces astaci after crayfish plague outbreaks (6894)”
Abstract Spatiotemporal detection of Aphanomyces astaci after crayfish plague outbreaks Introduction: The oomycete Aphanomyces astaci is the causative agent of crayfish plague in native European crayfish, leading to high mortality. Invasive North American crayfish serve as carriers of the agent. Disease dynamics and spread monitoring in natural water systems remains a major challenge, as outbreaks […]
“Stick It to Lactococcus: Development of a Point-of-Care Diagnostic Assay for Piscine Lactococcosis (7364)”
Abstract Stick It to Lactococcus: Development of a Point-of-Care Diagnostic Assay for Piscine Lactococcosis Piscine lactococcosis is a critical bacterial disease impacting farmed fish, predominantly caused by species within the Lactococcus genus, including Lactococcus garvieae, Lactococcus petauri, and Lactococcus formosensis. Timely and accurate diagnosis is essential for effective outbreak management and mitigation of economic losses […]
“Strategies to reduce vibrio content in the gut of pacific white shrimp (Litopenaeus vannamei) (6945)”
Abstract STRATEGIES TO REDUCE VIBRIO CONTENT IN THE GUT OF PACIFIC WHITE SHRIMP (Litopenaeus vannamei) Introduction: Shrimp farming plays a vital role in global aquaculture, but it faces growing threats from bacterial diseases, particularly those caused by Vibriospecies. One of the most serious challenges is acute hepatopancreatic necrosis disease (AHPND), triggered byVibrio parahaemolyticus. As concerns […]
“Strengthening the Aquaculture Veterinary Workforce by Identifying Core Competencies Needed and Providing Targeted Training Workshops (6890)”
Abstract Strengthening the Aquaculture Veterinary Workforce by Identifying Core Competencies Needed and Providing Targeted Training Workshops Introduction This presentation will present the efforts on strengthening the aquaculture veterinary workforce in the North Central U.S. with a focus on identifying core competencies for aquaculture veterinary practice. We hope to share our findings and learn from others […]
“String Jellyfish Apolemia spp. (Most Likely A. uvaria) Causes Serious Tissue Damage in Farmed Fish (7155)”
Abstract String Jellyfish Apolemia spp. (Most Likely A. uvaria) Causes Serious Tissue Damage in Farmed Fish In recent years there has been an increasing number of observations of string jellyfish Apolemia spp. (most likely A. uvaria) along the entire Norwegian coast, and during the autumn of 2023, the high occurrence became a serious challenge for […]
“Structured risk source analysis: events and consequences involved in pathogen transmission – with examples from Atlantic cod farming (6898)”
Abstract Structured risk source analysis: events and consequences involved in pathogen transmission – with examples from Atlantic cod farming Introduction: Fish farming world-wide, provides healthy protein rich food that makes up half of the global seafood consumption today. Securing sustainable aquaculture production is thus imperative. Risk assessment play an important role in this process by […]
“Stunning and humane killing of decapod crustaceans – a literature review (7209)”
Abstract Stunning and humane killing of decapod crustaceans – a literature review Introduction The killing of decapod crustaceans by immersing them alive in boiling water is becoming less and less accepted by public opinion. Birch et al. 2021 concluded that all cephalopod molluscs and decapod crustaceans should be regarded as sentient animals for the purposes […]
“Subunit vaccine development for prevention of Tenacibaculosis in Atlantic salmon (7269)”
Abstract Subunit vaccine development for prevention of Tenacibaculosis in Atlantic salmon Introduction: The development of ulcers due to bacterial infections in farmed Atlantic salmon (Salmo salar) poses a significant and ongoing challenge for the Norwegian aquaculture industry. Outbreaks of tenacibaculosis, caused by Tenacibaculum finnmarkense, present severe issues for newly transferred smolt, manifesting as ulcer formation […]
“Supplementing the diet with Pediococcus pentosaceus enhances resistance to betanodavirus and ranavirus in groupers (7139)”
Abstract Supplementing the diet with Pediococcus pentosaceus enhances resistance to betanodavirus and ranavirus in groupers Groupers in Asian aquaculture are often affected by nervous necrosis virus (NNV) and grouper iridovirus (GIV). This study evaluated the potential of Pediococcus pentosaceus strain 4012 (LAB4012) in protecting groupers from NNV and GIV. The results showed that supplementing the […]
“Survey of Kudoa spp. in Atlantic horse mackerel (Trachurus trachurus) in the Portuguese coast (7294)”
Abstract Survey of Kudoa spp. in Atlantic horse mackerel (Trachurus trachurus) in the Portuguese coast Introduction: Myxospores of Kudoa (Myxozoa: Multivalvulida) are frequently detected parasitizing the muscles of marine and estuarine fish worldwide, where occasionally whitish cysts are formed. These parasites have minimal effects on living fish but can cause tissue degradation after death, leading […]
“Susceptibility of different genetic lines of rainbow trout (Oncorhynchus mykiss) to infection with Flavobacterium psychrophilum (7013)”
Abstract Susceptibility of different genetic lines of rainbow trout (Oncorhynchus mykiss) to infection with Flavobacterium psychrophilum Introduction: Rainbow trout fry syndrome (RTFS) caused by Flavobacterium psychrophilum is one of the most serious diseases affecting farmed rainbow trout. Breeding of resistant fish strains is considered a promising strategy to reduce economical losses caused by the disease. […]
“Susceptibility of European grayling (Thymallus thymallus) to IHNV and quantification of viral shedding (7251)”
Abstract Susceptibility of European grayling (Thymallus thymallus) to IHNV and quantification of viral shedding Introduction Infectious haematopoietic necrosis virus (IHNV, Novirhabdovirus salmonid) is a rhabdovirus which can cause high mortality in cultured and wild fish worldwide. The current list of susceptible species has omissions relevant to the UK, including the unknown susceptibility of European grayling. […]
“Susceptibility of European sea bass and gilthead seabream brain cell lines to NNV infection (6893)”
Abstract Susceptibility of European sea bass and gilthead seabream brain cell lines to NNV infection Introduction The nervous necrosis virus (NNV) is responsible for viral encephalopathy and retinopathy (VER), mainly targeting the brain and retina, and considered one of the most significant diseases affecting European aquaculture. In the Mediterranean aquaculture sector, the European seabass (Dicentrarchus […]
“Suspected jellyfish-induced intestinal pathology in sea-reared Atlantic salmon at a fjord-based research facility (7292)”
Abstract Suspected jellyfish-induced intestinal pathology in sea-reared Atlantic salmon at a fjord-based research facility Jellyfish blooms pose an unpredictable threat to global salmon aquaculture, particularly in major producing nations such as Norway and Scotland. These gelatinous organisms inflict direct harm through contact with stinging cells (nematocysts), historically linked to gill damage, respiratory distress, and mass […]
“Synthetic peptides prevent red grouper nervous necrosis virus absorption improving survival after infection in European sea bass (6874)”
Abstract Synthetic peptides prevent red grouper nervous necrosis virus absorption improving survival after infection in European sea bass Introduction Betanodavirus rank among the most challenging fish viral threats to the global aquaculture industry. They are uncoated, positive-sensed, single-stranded RNA viruses which possess a bipartite genome, with one segment encoding the capsid protein and the other […]
“Teaching about fish at veterinary schools in France (7034)”
Abstract Teaching about fish at veterinary schools in France Introduction: There are currently 4 public veterinary schools and one private veterinary school in France. Historically, a chair of aquaculture was created at the public veterinary school based in Nantes when it was founded in 1979. This is still the school with the largest volume of […]
“Teaching Aquatic Animal Medicine in a virtual partnership (7376)”
Abstract Teaching Aquatic Animal Medicine in a virtual partnership Introduction Trainings offered by Veterinary Medicine universities around the world are mainly focused on traditional companion pets and agriculture species, often with little emphasis on exotic animals. There is an increasing demand for professional services in industrial aquaculture, seafood inspection, wildlife management, biomedical research, and for […]
“Temporal changes in the microbiome of Salmon lice (Lepeophtheirus salmonis): Detection of potential salmonid pathogens (7102)”
Abstract Temporal changes in the microbiome of Salmon lice (Lepeophtheirus salmonis): Detection of potential salmonid pathogens Ectoparasites that penetrate the epidermis of their hosts have the potential to act as biological or mechanical vectors for host pathogens and, in some cases, even serve as reservoirs. Crustacean ectoparasites of fish have been identified as potential vectors […]
“Temporal sampling of rainbow trout fry for characterizing Flavobacterium psychrophilum dynamics in a Recirculating Aquaculture System (7347)”
Abstract Temporal sampling of rainbow trout fry for characterizing Flavobacterium psychrophilum dynamics in a Recirculating Aquaculture System Introduction: Infections caused by the Gram-negative bacterium Flavobacterium psychrophilum have a negative impact on fish production. These infections are classically treated with antibiotics worldwide and there is an increased focus on developing alternative strategies such as e.g. phage […]
“Testicular beta-defensin transcriptional profile in European sea bass (7077)”
Abstract TESTICULAR BETA-DEFENSIN TRANSCRIPTIONAL PROFILE IN EUROPEAN SEA BASS TESTICULAR BETA-DEFENSIN TRANSCRIPTIONAL PROFILE IN EUROPEAN SEA BASS Laura Cervera1,2, Yulema Valero1,2, Alberto Cuesta2, Marta Arizcun1, Elena Chaves-Pozo1* 1 Centro Oceanográfico de Murcia (COMU-IEO), CSIC, Spain *elena.chaves@ieo.csic.es 2 University of Murcia, Spain Introduction Antimicrobial peptides (AMPs) are small peptides with immunomodulatory properties and direct lytic effects […]
“Testis during viral infections in common carp – not so immune privileged? (7366)”
Abstract Testis during viral infections in common carp – not so immune privileged? Introduction: Koi herpes virus (KHV) and carp edema virus (CEV) are the most common viral infections in common carp. These viruses have distinct tissue tropisms, affecting gills and other organs during infection. The testes of fish are unique in that they have […]
“The Dilemmas of Digital PCR: Technology Transfer for Fish Health Diagnostics (7024)”
Abstract The Dilemmas of Digital PCR: Technology Transfer for Fish Health Diagnostics Introduction: Viral myopathies of farmed Atlantic salmon threaten the aquaculture industry, resulting in economic losses and poor fish welfare. Rapid, sensitive and cost-effective detection of myocarditis-related viruses in farmed salmon is crucial for early interventions and appropriate mitigation for disease management. Droplet digital […]
“The effect of Lactiplantibacillus probiotic supplement on rainbow trout challenged with Aeromonas salmonicida (7019)”
Abstract The effect of Lactiplantibacillus probiotic supplement on rainbow trout challenged with Aeromonas salmonicida Introduction Aeromonas salmonicida is one of the most relevant aquatic pathogens leading to significant economic loss in salmonid aquaculture due to mass morbidity and mortality. We aimed to verify the effect of dietary supplementation with Lactiplantibacillus plantarum strain isolated from […]
“The effect of photoperiod stimulation in smoltification on salmon health and production, a common garden lifetime study (7099)”
Abstract the effect of photoperiod stimulation in smoltification on salmon health and production, a common garden lifetime study introduction successful smoltification in norwegian salmon aquaculture is crucial for optimal fish health, welfare, and further production at sea. traditionally, smoltification is induced by simulating the natural framework of seasonal photoperiodic changes, exposing salmon to a “winter […]
“The effects of oral Lactobacillus delbrueckii and Lacticaseibacillus rhamnosus supplement on the pharmacokinetics of florfenicol in Nile tilapia (Oreochromis niloticus): implications on reduced therapeutic efficacy (6927)”
Abstract The effects of oral Lactobacillus delbrueckii and Lacticaseibacillus rhamnosus supplement on the pharmacokinetics of florfenicol in Nile tilapia (Oreochromis niloticus): implications on reduced therapeutic efficacy Dietary supplementation with probiotics such as lactic acid bacteria (LAB) has gained increasing popularity in aquaculture due to their beneficial effects on fish growth performance and immunity. Probiotic supplementation […]
“The Heart of the Problem: Advancing electrocardiography as a diagnostic tool in farmed fish. (6937)”
Abstract The Heart of the Problem: Advancing electrocardiography as a diagnostic tool in farmed fish. Despite significant efforts to enhance the health and welfare of farmed fish, cardiovascular diseases and disorders remain a major challenge in aquaculture. For example, the salmonid industry continues to experience high mortality rates, resulting in the annual loss of tens […]
“The impact of louse barriers on Atlantic salmon (Salmo salar) gill health (7042)”
Abstract The impact of louse barriers on Atlantic salmon (Salmo salar) gill health Introduction The salmon industry is challenged with a difficult balancing act, managing parasitic lice levels while ensuring fish health. Chemical resistance and welfare concerns have driven a shift from reactive to preventive strategies, e.g. barriers. Barriers physically block infectious copepodids concentrated near […]
“The importance of Mx in the antiviral resistance of fish cell lines (6833)”
Abstract The importance of Mx in the antiviral resistance of fish cell lines Introduction Mx (myxovirus resistance) is a key antiviral effector. Mx genes, part of the Interferon Stimulated Genes (ISGs) encode IFN-inducible dynamin-like GTPases that have an antiviral effect against a wide array of RNA viruses as well as some DNA viruses. In salmonids, […]
“The infection dynamics and immune response of the causative poxvirus in the course of the development of atypical cellular gill disease in ayu Plecoglossus altivelis (6921)”
Abstract The infection dynamics and immune response of the causative poxvirus in the course of the development of atypical cellular gill disease in ayu Plecoglossus altivelis Atypical cellular gill disease (ACGD) in ayu caused by Plecoglossus altivelis poxvirus (PaPV) has led to significant economic losses in aquaculture. This disease manifests the appearance of atypical cells […]
“The influence of environmental conditions on wound healing in Atlantic salmon (7194)”
Abstract The influence of environmental conditions on wound healing in Atlantic salmon Introduction Despite being one of the leading causes of reduced welfare and mortality in farmed Atlantic salmon, winter ulcer disease remains poorly understood. Rather than being caused by a single pathogen, winter ulcers are the result of opportunistic bacterial infections when hosts have […]
“THE LOCAL IMMUNE RESPONSE TRIGGERED BY CRYPTOCARYON IRRITANS INFECTION IN SHI DRUM (7082)”
Abstract THE LOCAL IMMUNE RESPONSE TRIGGERED BY CRYPTOCARYON IRRITANS INFECTION IN SHI DRUM THE LOCAL IMMUNE RESPONSE TRIGGERED BY CRYPTOCARYON IRRITANS INFECTION IN SHI DRUM Laura Cervera1,2, Elena Hernández1,2, Marta Arizcun1, Elena Chaves-Pozo1* 1 COMU-IEO, CSIC, Spain * elena.chaves@ieo.csic.es 2 University of Murcia, Spain Introduction Some parasites such as Cryptocaryon irritans constitute a great threaten […]
“The local transcriptomic response of Atlantic salmon skin to salmon louse chalimi and adults (6988)”
Abstract The local transcriptomic response of Atlantic salmon skin to salmon louse chalimi and adults Introduction: Salmon lice (Lepeophtheirus salmonis) parasitize the skin of salmonids and pose a significant problem to salmonid aquaculture. Unlike resistant salmonids, the immune response of Atlantic salmon does not efficiently clear any of the various salmon louse life stages, probably […]
“The North American strain of Tetracapsuloides bryosalmonae utilises the salmonid Oncorhynchus mykiss and bryozoan Fredericella indica (7369)”
Abstract The North American strain of Tetracapsuloides bryosalmonae utilises the salmonid Oncorhynchus mykiss and bryozoan Fredericella indica In Europe, the myxozoan parasite responsible for Proliferative Kidney Disease (PKD), Tetracapsuloides bryosalmonae (T. bryo), cycles between salmonid fishes and freshwater bryozoans. However, in North America no active hosts (species that shed viable, infectious spores) have been identified. To assess […]
“The Norwegian Fish Health Report (7193)”
Abstract The Norwegian Fish Health Report The main species in Norwegian aquaculture is Atlantic salmon, with approximately 400 million smolt transferred to sea every year. The Norwegian Veterinary Institute (NVI) is the national reference laboratory for fish diseases and has published the Norwegian Fish Health Report annually since 2003. The report focuses on health and […]
“The role of plasmids in driving Vibrio harveyi virulence in barramundi (Lates calcarifer) (6891)”
Abstract The role of plasmids in driving Vibrio harveyi virulence in barramundi (Lates calcarifer) Introduction: Vibrio species are a major animal and public health risk in marine and estuarine environments worldwide and their prevalence is expected to increase with climate change. For tropical and warmwater aquaculture, the opportunist Vibrio harveyi is a major disease risk […]
“The role of wildlife in the epidemiology of aquatic animal diseases: a research perspective from the European partnership on animal health and welfare (7279)”
Abstract THE ROLE OF WILDLIFE IN THE EPIDEMIOLOGY OF AQUATIC ANIMAL DISEASES: A RESEARCH PERSPECTIVE FROM THE EUROPEAN PARTNERSHIP ON ANIMAL HEALTH AND WELFARE Wildlife plays a critical and often underappreciated role in the epidemiology of aquatic animal diseases, influencing the health dynamics of both farmed and wild aquatic populations. Given that the interface between […]
“The secreted novel AID/APOBEC-like deaminase 1 (SNAD1) could play an important role in fish immunology (7355)”
Abstract The secreted novel AID/APOBEC-like deaminase 1 (SNAD1) could play an important role in fish immunology Introduction: AID/APOBECs are a group of zinc-dependent cytidine deaminases that catalyse the deamination of bases in nucleic acids, resulting in a transition from cytidine to uridine. Secreted novel AID/APOBEC-like deaminases (SNADs) are unique among all intracellular classical AID/APOBECs due […]
“The surveillance of pathogens of veterinary importance and their antimicrobial resistance profiles (SPAMR-VET) – European Partnership on Animal Health and Welfare (7323)”
Abstract The surveillance of pathogens of veterinary importance and their antimicrobial resistance profiles (SPAMR-VET) – European Partnership on Animal Health and Welfare The European Partnership on Animal Health and Welfare is a research and innovation initiative the European Commission (EC) has funded to control infectious diseases of animals, and to promote animal welfare. The objectives […]
“The symbiosis between Vibrio fischeri and the Hawaiian bobtail squid as a model aquatic infection”
Abstract Keynote Talk:”The symbiosis between Vibrio fischeri and the Hawaiian bobtail squid as a model aquatic infection” The mutualistic symbiosis between the bioluminescent bacterium Vibrio fischeri and the Hawaiian bobtail squid, Euprymna scolopes, is a tractable model for studying beneficial animal-microbe interactions. Hatchling squid lack this symbiont but acquire V. fischeri from the surrounding seawater […]
“The WAVES Consortium: Working towards adaptive and versatile environmental sustainability in mollusc aquaculture in Southeast Asia (7329)”
Abstract The WAVES Consortium: Working towards adaptive and versatile environmental sustainability in mollusc aquaculture in Southeast Asia Introduction: Mollusc aquaculture produces 20 million tonnes live biomass annually, with Asia hosting >95% of activity and bivalves dominating production. Non-fed species, such as oysters, mussels and benthic clams, offer a ‘low-carbon’ solution to high-quality nutritional security whilst […]
“Tilapia lake virus in the pathophysiological aspects: The impact of the infection on hematological and cardiac functions (6266)”
Abstract Tilapia lake virus in the pathophysiological aspects: The impact of the infection on hematological and cardiac functions. Tilapia Lake Virus (TiLV), also known as Tilapinevirus tilapiae, is a negative-sense single-stranded RNA virus that has caused substantial economic losses in global tilapia aquaculture. Infected fish commonly exhibit clinical signs such as anorexia, abnormal swimming behavior, skin […]
“Tilapia Lake virus induces mitochondrial disruption and apoptotic cell death in E-11 cells (6287)”
Abstract Tilapia Lake virus induces mitochondrial disruption and apoptotic cell death in E-11 cells Tilapia Lake Virus (TiLV) is a significant pathogen in tilapia aquaculture, causing extensive mortality and economic losses. This study integrates proteomic, phosphoproteomic, and ultrastructural analyses to elucidate TiLV-induced cell death mechanisms in E-11 cells. Transmission electron microscopy revealed the presence of […]
“Tilapia welfare assessment in Thailand: Perspectives from the farm to the local markets (6286)”
Abstract Tilapia welfare assessment in Thailand: Perspectives from the farm to the local markets Tilapia (Oreochromis spp.) is an important aquatic species in Thailand’s aquaculture industry. However, welfare considerations throughout the production chain, from farming practices to slaughter methods in local markets, remain limited. This study evaluates tilapia welfare across different production stages, integrating on-farm […]
“Time-dependent effects of dietary methionine supplementation on immune status and antioxidant defenses in European seabass (Dicentrarchus labrax) (7138)”
Abstract Time-dependent effects of dietary methionine supplementation on immune status and antioxidant defenses in European seabass (Dicentrarchus labrax) When assessing dietary supplements designed to modulate the immune system, it is important to consider the impact of different feeding durations. While short-term dietary methionine supplementation has been shown to enhance immune status in European seabass (Dicentrarchus […]
“Tissue-specific gene expression and immune modulation of stress receptor paralogues in Atlantic salmon (7330)”
Abstract Tissue-specific gene expression and immune modulation of stress receptor paralogues in Atlantic salmon Atlantic salmon aquaculture is highly successful in Scotland with a value over 3.3 billion to the Scottish economy over the last decade. Despite tight control over husbandry throughout the production cycle, management practices including grading, vaccination, and transportation expose fish to […]
“Toll-like receptor 3 function in a chinook salmon Oncorhynchus tshawytscha salmonid cell line (6371)”
Abstract Toll-like receptor 3 function in a chinook salmon Oncorhynchus tshawytscha salmonid cell line Introduction Nucleic acids represent a class of pathogen-associated molecular patterns (PAMPs) that indicate the presence of a pathogen. They are detected by of pattern-recognition receptors including six subfamilies of Toll-like receptors (TLR). There are 10 to 12 TLR in mammals and […]
“Towards the development of a welfare assessment scheme for European sea bass.” (7094)
Abstract Towards the development of a welfare assessment scheme for European sea bass. Introduction One of the major challenges in animal welfare science is developing tools that reliably assess and quantify welfare, ensuring they are both scientifically valid and practically applicable. These tools must balance biological relevance with practicality, enabling stakeholders to make informed decisions […]
“Tracking Parasite Diversity in a Polluted Freshwater Ecosystem (7286)”
Abstract Tracking Parasite Diversity in a Polluted Freshwater Ecosystem Introduction: Freshwater ecosystems face a rapid decline in biodiversity, driven by pollution, invasive species, and other human activities. Myxozoan and microsporidian parasites are highly diverse and widespread in aquatic hosts, yet their biodiversity remains largely underestimated. The Živný stream in Czechia (South Bohemia region), influenced by […]
“Tracking trouble: sources, persistence, and risk factors of antimicrobial-resistant Escherichia spp in freshwater fish farms of north-west france (6888)”
Abstract Tracking trouble: sources, persistence, and risk factors of antimicrobial-resistant Escherichia spp in freshwater fish farms of north-west france Antimicrobial resistance (AMR) represents a growing threat to human health, environmental integrity and animal populations. Its impact on aquaculture may be particularly alarming, given the essential role this sector plays in global food security through sustainable […]
“Transcriptome of ranched Southern bluefin tuna, Thunnus maccoyii, reveals a localised and systemic immune response during Cardicola forsteri (Trematoda: Aporocotylidae) infection (7027)”
Abstract Transcriptome of ranched Southern bluefin tuna, Thunnus maccoyii, reveals a localised and systemic immune response during Cardicola forsteri (Trematoda: Aporocotylidae) infection Introduction Ranched Southern bluefin tuna (SBT), Thunnus maccoyii, are susceptible to infection by aporocotylids (Trematoda: Digenea), that represent an ongoing health concern for the Australian SBT aquaculture industry. Methodology We performed a whole […]
“Transcriptomic analyses in European seabass during Vibrio anguillarum infection: a beneficial modulation of disease response induced by marine synbiotic (6906)”
Abstract Transcriptomic analyses in European seabass during Vibrio anguillarum infection: a beneficial modulation of disease response induced by marine synbiotic Introduction The intensification of aquaculture, coupled with climate change, heightens infection risks in fish farms. Probiotics are a promising strategy to mitigate biotic/abiotic stressors, enhance fish health, and – consequently – reduce environmental impact. A […]
“Transcriptomic analysis of rainbow trout response to single and co-infections by myxobolus cerebralis and tetracapsuloides bryosalmonae at the portals of entry (7185)”
Abstract transcriptomic analysis of rainbow trout response to single and co-infections by myxobolus cerebralis and tetracapsuloides bryosalmonae at the portals of entry Some parasitic infections such as those caused by the myxozoans Myxobolus cerebralis and Tetracapsuloides bryosalmonae pose a major threat to salmonid aquaculture as they lead to severe tissue damage and compromised host immunity. […]
“Transcriptomic and proteomic insights into tenacibaculum maritimum adaptation to iron depletion under in vivo-like conditions (7253)”
Abstract transcriptomic and proteomic insights into tenacibaculum maritimum adaptation to iron depletion under in vivo-like conditions introduction tenacibaculum maritimum is a recognized bacterial pathogen responsible for skin infections in a variety of marine fish species. in order to mimic the host environment where iron availability is restricted as part of the host’s immune defence, we […]
“Treatment Strategies for Nodular Gill Disease: Insights from Swiss Rainbow trout (Oncorhynchus mykiss) Aquaculture (6979)”
Abstract Treatment Strategies for Nodular Gill Disease: Insights from Swiss Rainbow trout (Oncorhynchus mykiss) Aquaculture Nodular gill disease (NGD) is an infectious condition characterized by proliferative gill lesions, leading to respiratory distress, hypoxia, and increased mortality rates. It predominantly affects freshwater salmonids reared in intensive aquaculture systems worldwide. In Switzerland, recent NGD outbreaks have resulted […]
“Trophic interactions in a sympatric pair of whitefish with different feeding habits and plerocercoids of Triaenophorus crassus (Cestoda) parasitizing their muscles: a stable isotope approach (7162)”
Abstract Trophic interactions in a sympatric pair of whitefish with different feeding habits and plerocercoids of Triaenophorus crassus (Cestoda) parasitizing their muscles: a stable isotope approach Introduction. Parasites play an important role in aquatic ecosystems, although relatively little is known about their contribution to the complexity of the food web structure. Analysis of stable carbon […]
“Turkish Yerisina ruckeri isolate characterisation by MLVA genotyping and comparative genomics (7272)”
Abstract Turkish Yerisina ruckeri isolate characterisation by MLVA genotyping and comparative genomics Introduction In the last decade, the incidence of Enteric red mouth (ERM) disease has increased in Turkish farmed rainbow trout despite vaccination and other disease control measures. Genotyping and genomic characterisation of Yersinia ruckeri isolates are thus important in order to understand the […]
“Ultrastructural Analysis of Amoebae and Gill Lesions in Nodular Gill Disease of Rainbow Trout (6973)”
Abstract Ultrastructural Analysis of Amoebae and Gill Lesions in Nodular Gill Disease of Rainbow Trout In Swiss rainbow trout (Oncorhynchus mykiss) farms, Nodular Gill Disease (NGD) remains a major health challenge. In recent years, several studies have been conducted to better understand the disease. In 2023, six amoeba species were identified on the gills of […]
“Ultrastructural insights into a Candidatus Parilichlamydia sp. infection of gill goblet cells in Greater amberjack (7108)”
Ultrastructural insights into a Candidatus Parilichlamydia sp. infection of gill goblet cells in Greater amberjack. Introduction The Candidatus family Parilichlamydiaceae, currently including two proposed genera Ca. Similichlamydia and Ca. Parilichlamydia has received increasing attention due to its evolutionary significance revealed by their deeply branching position in the Chlamydial taxonomic trees. Despite the considerable interest in […]
“Understanding tilapia mortalities and fish health management in Lake Volta: a systematic approach (6971)”
Abstract Understanding tilapia mortalities and fish health management in Lake Volta: a systematic approach Introduction Unusual fish mortalities in aquaculture threaten global food security and carry significant socio-economic burdens. In 2018, Nile tilapia (Oreochromis niloticus) suffered unusual patterns of mortalities, attributed to disease-causing agents in Lake Volta cage aquaculture. In recent times, disease investigations have […]
“Unidentified intracellular bacteria causing severe disease outbreak in farmed gilthead sea bream (Sparus aurata) (7343)”
Abstract Unidentified intracellular bacteria causing severe disease outbreak in farmed gilthead sea bream (Sparus aurata) INTRODUCTION Mediterranean mariculture is increasingly challenged by emerging transmissible diseases, primarily caused by pathogenic bacteria such as Lactococccus garvieae, Aeromonas veronii and Rickettsia-like organisms (RLO) among others. This report describes the diagnostic process undertaken to identify the etiological agent responsible […]
“Unraveling the mechanisms of freeze-dried Lactiplantibacillus plantarum in strengthening the immunity of Penaeus vannamei shrimp against acute hepatopancreatic necrosis disease (6812)”
Abstract Unraveling the mechanisms of freeze-dried Lactiplantibacillus plantarum in strengthening the immunity of Penaeus vannamei shrimp against acute hepatopancreatic necrosis disease The lack of a classical adaptive immunity in shrimp necessitates a multi-pronged approach in the development of the disease control and prevention measures in shrimp. In this study, we implemented conventional and omics-based strategies […]
“Unveiling Perkinsus olsenii and P. chesapeaki across their French distribution using a touch of ecology and genetics (6902)”
Abstract Unveiling Perkinsus olsenii and P. chesapeaki across their French distribution using a touch of ecology and genetics Marine parasites, particularly Perkinsus spp., pose significant threats to mollusc health, compromising biodiversity and generating ecological and economic consequences. Perkinsus olseniiand P. chesapeaki, two protozoans detected in clam populations in Europe and Asia, were likely introduced to […]
“Unveiling the Life Cycle of P. pseudobranchicola: Insights from the ParviLife Project (7336)”
Abstract Unveiling the Life Cycle of P. pseudobranchicola: Insights from the ParviLife Project Parvicapsulosis, caused by the myxozoan parasite Parvicapsula pseudobranchicola, is a persistent and economically significant disease in farmed Atlantic salmon (Salmo salar). Characterized by infection of the pseudobranchs, the disease can lead to clinical signs such as surface dwelling, erratic swimming, lethargy, and […]
“Unveiling the role of spirulina in the mitigation of sumithion-induced growth retardation, oxidative stress and immuno-toxicity in striped catfish (pangasianodon hypophthalmus) (6977)”
Abstract unveiling the role of spirulina in the mitigation of sumithion-induced growth retardation, oxidative stress and immuno-toxicity in striped catfish (pangasianodon hypophthalmus) sumithion is an organophosphate insecticide, widely used in aquaculture ponds to eradicate aquatic insect (mainly tiger bugs), typically applied before stocking fish larvae. however, it adversely affects non-target aquatic organisms, particularly fish. this […]
“Use of transcriptomics for detection of novel viruses in molluscs (7298)”
Abstract Use of transcriptomics for detection of novel viruses in molluscs Detecting the presence of virus in an animal to diagnose or to predict a disease was dependent, most frequently, on the use of target techniques. Even cell culture isolation, a well-known non-target viral detection method, ultimately depends on serological and/or molecular techniques for identifying […]
“Vaccination modality and injection site influence the immune response and protection against sea lice Lepeophtheirus salmonis infestation in Atlantic salmon (Salmo salar) (7290)”
Abstract Vaccination modality and injection site influence the immune response and protection against sea lice Lepeophtheirus salmonis infestation in Atlantic salmon (Salmo salar) Infestation with the salmon louse has a huge impact on the welfare of the Atlantic salmon. Currently, the aquaculture industry faces substantial economic losses caused by lice infestation and there is a […]
“Validation of multi-target high-throughput qPCR for pathogen detection in salmonids (7114)”
Abstract Validation of multi-target high-throughput qPCR for pathogen detection in salmonids Introduction: Aquaculture production has been growing steadily worldwide since the 1990’s, and environmental restrictions to reduce pollution have pushed the development of recirculating aquaculture systems (RAS). In Denmark, this has resulted in fewer farms but with more intense production, leading to more frequent introduction […]
“Variations in replication of different IPNV strains under diverse temperature conditions (7284)”
Abstract Variations in replication of different IPNV strains under diverse temperature conditions Infectious Pancreatic Necrosis Virus (IPNV) (genus Aquabirnavirus; family Birnaviridae) is the etiological agent of a well-known disease that cause high mortalities and important economic losses mainly in salmonid aquaculture. It is a non-enveloped icosahedral virus whose genome is constituted by two segments of […]
“Vector Optimization for Efficient Expression of Oplegnathus fasciatus Interferon-Gamma in Chlorella vulgaris (7003)”
Abstract Vector Optimization for Efficient Expression of Oplegnathus fasciatus Interferon-Gamma in Chlorella vulgaris Red sea bream iridoviral disease (RSIVD) remains a persistent challenge in the aquaculture industry, particularly affecting Oplegnathus fasciatus, where it causes high mortality and significant economic losses. To develop an effective oral vaccine against RSIVD, we aimed to express O. fasciatus interferon-gamma […]
“Vertebral Deformities in Salmo salar and Oncorhynchus kisutch in Chile during 2023 and 2024. Diagnosis and prognosis based on improved radiological procedures. (7066)”
Abstract Vertebral Deformities in Salmo salar and Oncorhynchus kisutch in Chile during 2023 and 2024. Diagnosis and prognosis based on improved radiological procedures. Vertebral Deformities in Salmo salar and Oncorhynchus kisutch in Chile during 2023 and 2024. Diagnosis and prognosis based on improved radiological procedures. Carlos Sandoval1, Javiera Villarroel1, Juan Pablo Prada1, P. Eckhard Witten2 […]
“Vibrio parahaemolyticus – A vehicle for the spread of hidden carbapenemase resistance plasmids to enterobacteria? (7022)”
Abstract Vibrio parahaemolyticus – A vehicle for the spread of hidden carbapenemase resistance plasmids to enterobacteria? Introduction: In European countries, multidrug-resistant (MDR) Vibrio parahaemolyticus is frequently reported from imported aquaculture fish/seafood intended for human consumption. As a natural inhabitant of aquatic environments, V. parahaemolyticus in fish/seafood poses a risk to public health as contaminated food […]
“Viral Nervous Necrosis in Sparus aurata: results from long term infection (7195)”
Abstract Viral Nervous Necrosis in Sparus aurata: results from long term infection Introduction The gilthead sea bream (Sparus aurata) was historically regarded as resistant to viral nervous necrosis (VNN). However, recent reports have documented significant mortality events associated with a reassortant strain of nervous necrosis virus (NNV). This emergent RGNNV/SJNNV reassortant betanodavirus, comprising an RNA1 […]
“Viral Nervous Necrosis outbreak affecting different grouper species in the Azorean archipelago (7180)”
Abstract Viral Nervous Necrosis outbreak affecting different grouper species in the Azorean archipelago Introduction The Azorean archipelago is located in the central Atlantic Ocean along the Mid-Atlantic Ridge. The Azores Current maintains and favours high biodiversity and the largest marine protected area network in Europe has been established around the archipelago to safeguard the ecosystem. […]
“Virus free offspring obtained from infected parents – can this be possible? (7191)”
Abstract Virus free offspring obtained from infected parents – can this be possible? One of the most dangerous diseases in carp and koi industry is represented by the infection with the koi herpesvirus (KHV). Over the years, the disease KHV disease (KHVD) occurred in many countries where those fish are bred. As an example how […]
“Walking a fine line: comparative time-series transcriptomics of low virulence Ceratonova shasta genotype 0 in sympatric and allopatric rainbow trout (7172)”
Abstract Walking a fine line: comparative time-series transcriptomics of low virulence Ceratonova shasta genotype 0 in sympatric and allopatric rainbow trout Ceratonova shasta is a myxozoan parasite of salmonid fishes from the Pacific Northwest of North America. This parasite comprises several host-specific genotypes with different degrees of virulence. While research has largely centred on the […]
“Water quality, off-flavors, and fish health in Recirculating Aquaculture Systems (RAS): Advances in high-throughput chip technology for non-invasive monitoring (6922)”
Abstract Water quality, off-flavors, and fish health in Recirculating Aquaculture Systems (RAS): Advances in high-throughput chip technology for non-invasive monitoring Recirculating aquaculture systems (RAS) are an environmentally sustainable approach to fish production, enabling the recirculation of up to 100% of water. These closed systems ensure a controlled environment while regulating nutrient discharge. While RAS can […]
“White grape marc extracts as potential modulators of fish growth, immune status and disease resistance (7238)”
Abstract White grape marc extracts as potential modulators of fish growth, immune status and disease resistance The intensification of aquaculture increases the vulnerability of farmed fish to infectious diseases. While antibiotics help manage these diseases effectively, their use raises environmental concerns and affects public perception of aquaculture. Moreover, the overuse of antibiotics promotes antimicrobial resistance […]
“Whole Genome Sequencing Reveals Genomic Characteristics of the Croatian Tenacibaculum maritimum Strains (7173)”
Abstract Whole Genome Sequencing Reveals Genomic Characteristics of the Croatian Tenacibaculum maritimum Strains Introduction: The expansion of aquaculture, compounded by climate change, has led to a rise in infectious disease outbreaks, significantly impacting fish health and surrounding ecosystems. Among the key pathogens is Tenacibaculum maritimum, a Gram-negative marine bacterium causing tenacibaculosis in a wide range […]
“Why aquaculture needs immunology (7335)”
Abstract Why aquaculture needs immunology Introduction Health of farmed fish and shellfish deserves a top priority. To help prevent and fight the global disease crisis in aquaculture, it is high time to further explore immunology. And high time for immunologists specialised in aquaculture to start taking aquaculture more seriously. I will discuss the effort that […]
“Why is it so dangerous to be a cleaner fish? (7326)”
Abstract Why is it so dangerous to be a cleaner fish? Cleaner fish are lumpfish and various wrasse species that are used as a part of the strategy to control salmon lice (Lepeophtheirus salmonis) in aquaculture. Every year, millions of cleaner fish are introduced into net pens to work as delousers. However, the role as […]
“Written in kidney stones: The effect of diet and carbon dioxide on nephrocalcinosis development (6695)”
Abstract Written in kidney stones: The effect of diet and carbon dioxide on nephrocalcinosis development Introduction A key production challenge facing salmonids in hatcheries is nephrocalcinosis or kidney stones. Nephrocalcinosis is a chronic condition characterised by the deposition of calcium and magnesium mineral salts in the kidney. Tubule dilation, degeneration, and destruction of tissue accompanies […]
“Yersinia ruckeri IN CANADA: ISOLATE CHARACTERIZATION, VACCINE SAFETY AND CHALLENGE STUDIES (6935)”
Abstract Yersinia ruckeri IN CANADA: ISOLATE CHARACTERIZATION, VACCINE SAFETY AND CHALLENGE STUDIES Yersinosis or Enteric Red Mouth (ERM) disease in fish caused by Yersinia ruckeri (Y. ruckeri), is a common bacterial septicemia that has been found in most areas of the world where salmonids are cultured in cold or temperate waters. In recent years Y. […]
“You may only eat what you can hold on to, the impact of nematode morphology on pathology (6899)”
Abstract You may only eat what you can hold on to, the impact of nematode morphology on pathology The African sharptooth catfish, Clarias gariepinus (Burchell, 1822) is a preferred aquaculture species in Africa. They are omnivorous and therefore host a large variety of parasites. Their pathology was compared to the morphology of the parasites. Fish […]
“Zoonotic trematodes in cyprinids from lakes in the Berlin area, Germany (7153)”
Abstract Zoonotic trematodes in cyprinids from lakes in the Berlin area, Germany There is little information on fish-borne zoonotic trematodes in Europe, although recent cases show that changes in dietary habits increase the risk of infection in humans. In a recent study, we documented for the first time the presence of the zoonotic Pseudamphistomum truncatum (Opisthorchiidae) in […]
“Ιnvestigations of interspecific horizontal transmission of Tenacibaculosis induced by Tenacibaculum maritimum from Atlantic salmon (Salmo salar L.) to Coho (Oncorhynchus kisutch W.) and Chinook salmon (Oncorhynchus tshawytscha W.) (7087)”
Abstract Investigations of interspecific horizontal transmission of Tenacibaculosis induced by Tenacibaculum maritimum from Atlantic salmon (Salmo salar L.) to Coho (Oncorhynchus kisutch W.) and Chinook salmon (Oncorhynchus tshawytscha W.). Tenacibaculosis is a disease caused by several Tenacibaculum species globally. In British Columbia (BC, Canada), the disease is described as ‘yellow mouth’ or ‘mouthrot’ due to […]
And the dams came down: deconstructing dams and myxozoan disease following Klamath River Dam removals (6926)
Abstract PLENARY TALK: And the dams came down: deconstructing dams and myxozoan disease following Klamath River Dam removals In 2023-24 four dams were removed on the Klamath River, which runs across the border of California and Oregon, USA. This was the largest dam removal and restoration project in U.S. history, with a primary aim to […]