Article
Fisheries
Ragnar Thorarinsson, Jeffrey C. Wolf, Makoto Inami, Lisa Phillips, Ginny Jones, Alicia M. Macdonald, Jose F. Rodriguez, Hilde Sindre, Eystein Skjerve, Espen Rimstad, Oystein Evensen
Summary: The DNA vaccine group showed significantly higher SAV3 neutralizing antibody titers after the immunization period, lower SAV3 viremia levels at 19 days post-challenge, reduced transmission of SAV3 to naive fish, higher weight gain, and reduced prevalence/severity of SAV-induced morphological changes in target organs. Additionally, the DNA vaccine group had significantly higher post-challenge survival compared to the Saline group.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Fisheries
Ida Aksnes, Stine Braaen, Turhan Markussen, Caroline Piercey Akesson, Stephane Villoing, Espen Rimstad
Summary: The study shows that immunization with targeted mutations in SAV3 strains can lead to PD, but by injecting mutated viral strains, salmon can acquire a certain degree of protection, with reduced clinical symptoms and increased weight gain.
JOURNAL OF FISH DISEASES
(2021)
Article
Multidisciplinary Sciences
Ryan Brown, Lindsey Moore, Amir Mani, Sonal Patel, Irene Salinas
Summary: This study compared the skin and gill microbiome of diploid and triploid Atlantic salmon, finding that ploidy can impact the microbial composition of the gills but not the skin-associated microbiome. Diploid salmon infected with SAV3 showed greater histopathological signs of epitheliocystis compared to triploid fish. The results suggest that ploidy may play a role in Atlantic salmon gill health and provide insights into co-infection with SAV3 and C. Branchiomonas.
Article
Virology
Daniel J. Macqueen, Oliver Eve, Manu Kumar Gundappa, Rose Ruiz Daniels, Michael D. Gallagher, Svein Alexandersen, Marius Karlsen
Summary: This study used genomic epidemiology to investigate salmonid alphavirus in recent Norwegian aquaculture, reconstructing SAV2 diversity and transmission dynamics. The research highlights the usefulness of genomic epidemiology in tracking viral disease spread in aquaculture.
Article
Virology
Monika J. Hjortaas, Elena Fringuelli, Aderito L. Monjane, Aase B. Mikalsen, Christine M. Jonassen, Paul Savage, Hilde Sindre
Summary: This study conducted full-length genome sequencing of marine salmonid alphavirus genotype 2 (SAV2) samples from Norway and Scotland between 2006 and 2012. The results showed that Norwegian SAV2 strains share a recent common ancestor with Scottish SAV2 strains, but Scottish strains exhibit higher genomic diversity compared to those from Norway. This supports the hypothesis of a single introduction of SAV2 to Norway followed by horizontal spread along the coast.
Article
Fisheries
Lisa-Victoria Bernhardt, Atle Lillehaug, Lars Qviller, Simon Chioma Weli, Estelle Gronneberg, Hanne Nilsen, Mette Myrmel
Summary: The traditional method of monitoring salmonid alphavirus (SAV) infection in Norwegian fish farms is costly and time-consuming. However, a water filtration method was found to detect SAV in seawater earlier than traditional methods, showing potential for earlier detection of SAV in Atlantic salmon farms.
DISEASES OF AQUATIC ORGANISMS
(2021)
Article
Fisheries
Anne Flore Bakke, Alexander Rebl, Petter Frost, Sergey Afanasyev, Kristoffer Alnes Royset, Tina Softeland, Hege Lund, Preben Boysen, Aleksei Krasnov
Summary: The effects of light manipulation on antibody production and gene expression in farmed Atlantic salmon were examined in this study. Differences were observed in gene expression and antibody levels between fish exposed to constant light two weeks prior to vaccination and those exposed at the time of vaccination. However, these differences were eliminated by vaccination when the fish were challenged with salmonid alphavirus.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Fisheries
Ragnar Thorarinsson, Jeffrey C. Wolf, Makoto Inami, Hilde Sindre, Eystein Skjerve, Oystein Evensen, Espen Rimstad
Summary: This study tested three commercially available PD vaccines in seawater-farmed salmon in southern Norway. The results showed that fish injected with a DNA vaccine exhibited better protection against SAV3, as indicated by higher antibody titers, lower viremia levels, higher weight gain, and lower prevalence and severity of heart necrosis and loss of exocrine pancreas tissue.
FISH AND SHELLFISH IMMUNOLOGY REPORTS
(2022)
Article
Fisheries
Magnus Vikan Rosaeg, Ragnar Thorarinsson, Arnfinn Aunsmo
Summary: This study evaluated three PD vaccines' effects on growth and mortality in salmon farming using controlled field designs. Results showed only one vaccine significantly improved harvest weight and reduced mortality compared to controls. The data demonstrated differences in the efficacy of PD vaccines in farmed Atlantic salmon.
JOURNAL OF FISH DISEASES
(2021)
Article
Biochemistry & Molecular Biology
Clare J. Venney, Raphael Bouchard, Julien April, Eric Normandeau, Laurie Lecomte, Guillaume Cote, Louis Bernatchez
Summary: Captive rearing in salmon hatcheries can have significant impacts on fish phenotype and fitness, even without genetic changes. This study used whole genome methylation sequencing to investigate the epigenetic effects of hatchery rearing on Atlantic salmon. The results showed sex-specific effects and complex patterns of inheritance, indicating the need for further research on minimizing these effects in conservation efforts.
MOLECULAR ECOLOGY RESOURCES
(2023)
Article
Fisheries
Lisa-Victoria Bernhardt, Mette Myrmel, Atle Lillehaug, Lars Qviller, Simon Chioma Weli
Summary: This study developed and optimized a method for detecting SAV3 in water, showing the potential for serving as an alternative surveillance method for SAV in Norwegian Atlantic salmon farms. The method was tested through a cohabitant challenge trial and demonstrated a significant positive correlation between SAV3 in tank water concentrates and fish organ tissue samples.
DISEASES OF AQUATIC ORGANISMS
(2021)
Article
Fisheries
Brett Glencross, Pedro Munoz-Lopez, Chessor Matthew, Simon MacKenzie, Adam Powell, Matt Longshaw, Allan LeBlanc
Summary: This study examined the impact of acclimation time and inclusion level of a bacterial protein (BP) meal on the digestibility of protein and amino acids to post-smolt Atlantic salmon (Salmo salar). The results showed that longer acclimation time and higher inclusion level resulted in higher digestibility. Minimum 14-day acclimation time and 200 g/kg or greater inclusion level are recommended for reliable data.
Article
Fisheries
Brett Glencross, Teresa Grobler, David Huyben
Summary: This study demonstrates that the feed processing method significantly influences the nutritional value of corn gluten but has minimal effect on the digestibility of wheat gluten.
Article
Veterinary Sciences
Ingunn Fride Tvete, Magne Aldrin, Britt Bang Jensen
Summary: Mortality in farmed salmon production is a significant challenge to sustainability. A model was developed to predict daily mortality based on various environmental and production factors. Factors such as sea temperature, lice treatments, and presence of pancreas disease were considered. The model revealed a high mortality rate after stocking, gradually decreasing for the first three months and then increasing. Avoiding lice treatments and pancreas disease could significantly reduce total mortality.
PREVENTIVE VETERINARY MEDICINE
(2023)
Article
Fisheries
Shuai Gao, Xuefei Liu, Bing Han, Na Wang, Xiaonan Lv, Xueting Guan, Gefeng Xu, Jinshan Huang, Wen Shi, Min Liu
Summary: This study reveals that Salmonid alphavirus infection activates the NF-KB signaling pathway and induces inflammation. The viral nonstructural protein Nsp2 is identified as the major activator of NF-KB, promoting immune cell signaling and antiviral response to inhibit viral replication.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Review
Infectious Diseases
Ana Muniesa, Bernardo Basurco, Cristobal Aguilera, Dolors Furones, Carmen Reverte, Anna Sanjuan-Vilaplana, Mona Dverdal Jansen, Edgar Brun, Saraya Tavornpanich
TRANSBOUNDARY AND EMERGING DISEASES
(2020)
Review
Infectious Diseases
Liza Rosenbaum Nielsen, Lis Alban, Johanne Ellis-Iversen, Koen Mintiens, Marianne Sandberg
CLINICAL MICROBIOLOGY AND INFECTION
(2020)
Article
Fisheries
Shimaa E. Ali, Mona Dverdal Jansen, Chadag Vishnumurthy Mohan, Jerome Delamare-Deboutteville, Harrison Charo-Karisa
Article
Fisheries
Partho Pratim Debnath, Jerome Delamare-Deboutteville, Mona Dverdal Jansen, Kornsunee Phiwsaiya, Afsana Dalia, Md Abir Hasan, Saengchan Senapin, Chadag Vishnumurthy Mohan, Ha Thanh Dong, Channarong Rodkhum
JOURNAL OF FISH DISEASES
(2020)
Article
Veterinary Sciences
Abbey Olsen, Marianne Sandberg, Hans Houe, Henrik Vedel Nielsen, Matt Denwood, Tina Birk Jensen, Lis Alban
PREVENTIVE VETERINARY MEDICINE
(2020)
Article
Fisheries
Marta Alarcon, Torfinn Moldal, Mona Dverdal Jansen, Maria Aamelfot, Hilde Sindre, Trude M. Lyngstad, Knut Falk
JOURNAL OF FISH DISEASES
(2021)
Article
Veterinary Sciences
Ahmed Alfifi, Anders Dalsgaard, Jens P. Christensen, Marianne Halberg Larsen, Marianne Sandberg
PREVENTIVE VETERINARY MEDICINE
(2020)
Article
Fisheries
Melba G. Bondad-Reantaso, Nihad Fejzic, Brett MacKinnon, David Huchzermeyer, Sabina Seric-Haracic, Fernando O. Mardones, Chadag Vishnumurthy Mohan, Nick Taylor, Mona Dverdal Jansen, Saraya Tavornpanich, Bin Hao, Jie Huang, Eduardo M. Leano, Qing Li, Yan Liang, Andrea Dall'occo
Summary: The 12-point checklist for active surveillance of diseases in aquatic organisms aims to provide a methodological approach and guidance for countries with limited surveillance expertise. It includes a comprehensive list of steps and requirements that require multidisciplinary teamwork and a wide range of knowledge.
REVIEWS IN AQUACULTURE
(2021)
Article
Green & Sustainable Science & Technology
Gaspard Philis, Friederike Ziegler, Mona Dverdal Jansen, Lars Christian Gansel, Sara Hornborg, Grete Hansen Aas, Anne Stene
Summary: The study focuses on the environmental impacts of sea lice issues in Norwegian salmon farming, examining different treatment methods, the footprint of cleaner fish value chains, and the contribution of biological lice treatments to the salmon footprint. The research found that wrasse fishing has lower impacts compared to farmed lumpfish and wrasse, but ecosystem impacts and cleaner fish delousing efficiencies need further investigation for a comprehensive comparison. Overall, biological lice treatments are found to have a low contribution to the environmental footprint of salmon production, suggesting that it could be a viable option for sustainable salmon treatment, contingent on confirming treatment efficiency, accounting for ecosystem impacts, and addressing cleaner fish welfare issues.
JOURNAL OF INDUSTRIAL ECOLOGY
(2022)
Article
Veterinary Sciences
M. Aldrin, R. B. Huseby, B. Bang Jensen, M. D. Jansen
Summary: The study presents a spatial-temporal stochastic model for the spread of ISA in marine aquaculture farms, estimated based on historical production data in Norway. The research finds that transmission mainly comes from infected neighboring farms and unspecified sources. The model is used for scenario simulation to investigate the effects of potential strategies to combat ISA, including screening, vaccination, and culling.
PREVENTIVE VETERINARY MEDICINE
(2021)
Article
Veterinary Sciences
Marianne Sandberg, Ayla Hesp, Cecile Aenishaenslin, Marion Bordier, Houda Bennani, Ursula Bergwerff, Ilias Chantziaras, Daniele De Meneghi, Johanne Ellis-Iversen, Maria-Eleni Filippizi, Koen Mintiens, Liza R. Nielsen, Madelaine Norstrom, Laura Tomassone, Gerdien van Schaik, Lis Alban
Summary: Regular evaluation of integrated surveillance for antimicrobial use and resistance is necessary, and this study assessed the effectiveness of six different evaluation tools. Each tool has its own strengths and suitability, with varying requirements for complexity and training for evaluators.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Fisheries
Bjorn Spilsberg, Hanne K. Nilsen, Saraya Tavornpanich, Snorre Gulla, Mona Dverdal Jansen, Karin Lagesen, Duncan J. Colquhoun, Anne-Berit Olsen
Summary: Skin conditions associated with Tenacibaculum spp. pose a significant threat to sea-farmed Atlantic salmon in Norway. In this study, 15 suspected outbreaks were investigated, confirming the presence of Tenacibaculum spp. Through genetic analysis, T. finnmarkense and T. dicentrarchi were identified, with further differentiation of T. finnmarkense into genovars finnmarkense and ulcerans. The analysis revealed a genetically conserved cluster of T. finnmarkense gv. finnmarkense isolates, suggesting a link between this genotype and the development of clinical tenacibaculosis in sea-farmed Norwegian salmon. Similar genotypic distribution was observed in isolates collected in 2019, indicating a predisposition of small fish shortly after sea transfer to Tenacibaculum infection.
JOURNAL OF FISH DISEASES
(2022)
Article
Fisheries
Katharine R. Dean, Victor H. S. Oliveira, Cecilia Wolff, Torfinn Moldal, Mona Dverdal Jansen
JOURNAL OF FISH DISEASES
(2022)
Article
Virology
Debes Hammershaimb Christiansen, Petra Elisabeth Petersen, Maria Marjunardottir Dahl, Nicolina Vest, Maria Aamelfot, Anja Brathen Kristoffersen, Mona Dverdal Jansen, Iveta Matejusova, Michael D. Gallagher, Gisli Jonsson, Eduardo Rodriguez, Johanna Hol Fosse, Knut Falk
Summary: The nonvirulent infectious salmon anaemia virus (ISAV-HPR0) causes prevalent and transient infections in all three production stages of Atlantic salmon in the Faroe Islands. Different HPR0 subgroups dominate in different stages of production, and vertical transmission of HPR0 from broodfish to progeny is uncommon.
Article
Veterinary Sciences
Magnus Vikan Rosaeg, Ase Helen Garseth, Ola Bronstad Brynildsrud, Mona Dverdal Jansen
PREVENTIVE VETERINARY MEDICINE
(2019)