Results 81 to 90 of about 992 (157)

Classification of Post‐Delousing Mortality in Farmed Atlantic Salmon: A Case Study of Standardised Causal Classification at Fish‐Level

Journal of Fish Diseases, Volume 48, Issue 5, May 2025.
ABSTRACT The study investigated cause‐specific, fish‐level mortality of farmed Atlantic salmon following mechanical delousing. We visited three populations at two marine sites belonging to one company at four different time points, from 1 day before to 13 days after the mechanical delousing. A total of 453 dead fish were collected and necropsied during
Nanna K. Ringstad, Marit Stormoen, Paul J. Midtlyng, David Persson   +3 more
wiley   +1 more source

Pathogen and Gene Expression Profiles of Atlantic Salmon From an Endangered Population

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.
ABSTRACT The role of pathogens in impacting the behaviour and fate of salmonids has been studied extensively for some selected pathogens such as sea lice. However, the whole pathobiome of the fish are seldom considered and may confound and influence the study species in situ.
Robert J. Lennox, Angela D. Schulze, Kristi M. Miller, Trond Einar Isaksen, Eirik Straume Normann, Cecilie Iden Nilsen, Lotte S. Dahlmo, Bjørn T. Barlaup, Elisabeth Stöger, Sindre H. Eldøy, Knut Wiik Vollset   +10 more
wiley   +1 more source

Examination of brown trout decline in the pre-alpine Isar river [PDF]

, 2020
A decline of brown trout (Salmo trutta fario) was observed in the pre-alpine river Isar over the last years. The Bavarian Fisheries Association and local recreational anglers reported high mortalities especially within the warmer summer months.
Arndt, Daniela
core   +2 more sources

Deteksjon av antistoffer i atlantisk laks med et kulebasert multipleks immunoassay [PDF]

, 2020
Viral diseases are among of the main challenges in aquaculture in Norway today. Heart- and skeletal muscle inflammation, caused by Piscine orthoreovirus (PRV), and pancreas disease (PD), caused by Salmonid alphavirus (SAV), both cause huge losses of ...
Teige, Lena Hammerlund
core  

The Pathobiome of Salmo trutta From the North Sea to the Barents Sea

Journal of Biogeography, Volume 52, Issue 3, Page 558-570, March 2025.
ABSTRACT Aim Salmonids are some of the best studied species with respect to their pathobiome, and at the northern range limit, there is potential for pathogens to expand with both climate change and increased fish farming in the north. Location We sampled sea‐run brown trout from throughout Norway for gill tissue and conducted both pooled and ...
Robert J. Lennox, Kristina M. Miller, Abdullah Madhun, Angela D. Schulze, Sindre Håvarstein Eldøy, Trond E. Isaksen, Rune Nilsen, Dylan Shea, Kim Birnie‐Gauvin, Jan Grimsrud Davidsen, Steven J. Cooke, Knut Wiik Vollset   +11 more
wiley   +1 more source

Melanisation in Salmonid Skeletal Muscle: A Review

Journal of Fish Diseases, Volume 48, Issue 3, March 2025.
ABSTRACT Melanisation can occur in the musculature of fish. A well‐known form is the melanised focal changes, or ‘black spots’, in the fillet of farmed Atlantic salmon (Salmo salar). The aetiology of black spots has not been fully determined, though recent research has emphasised the role of fat necrosis in their development.
Håvard Bjørgen, Espen Rimstad, Erling Olaf Koppang   +2 more
wiley   +1 more source

Factors Influencing the Prevalence of Hyperpigmented Melanistic Lesions in Smallmouth Bass Micropterus dolomieu in the Susquehanna River Basin, Pennsylvania

Journal of Fish Diseases, Volume 48, Issue 1, January 2025.
ABSTRACT Hyperpigmented melanistic lesions (HPMLs) are a visual anomaly documented on the skin of smallmouth bass Micropterus dolomieu in the Susquehanna River Basin, Pennsylvania and in numerous other geographical locations. Currently, there is a lack of information on environmental and fish characteristics that may influence the prevalence of HPMLs ...
Megan K. Schall, Geoffrey D. Smith, Vicki S. Blazer, Heather L. Walsh, Tyler Wagner   +4 more
wiley   +1 more source

Fish Sludge as Feed in Circular Bioproduction: Overview of Biological and Chemical Hazards in Fish Sludge and Their Potential Fate via Ingestion by Invertebrates

Reviews in Aquaculture, Volume 17, Issue 1, January 2025.
This review provides knowledge of the biosecurity risks of using fish sludge to produce novel feed ingredients from low‐trophic, extractive animal species in circular value chains. The review includes nutritional composition, sludge treatment practices, EU regulations, and the fate of microbial and chemical hazards contained in sludge till raw ...
Kristin S. Pettersen, Veronika Sele, Pedro Araujo, Ikram Belghit, Sylvie L. Benestad, Aksel Bernhoft, Andy M. Booth, Gunnar S. Eriksen, Julia Farkas, Aleksander H. Handå, Bjørn Henrik Hansen, Kari O. Helgesen, Arne Holst‐Jensen, Gro S. Johannessen, Nina S. Liland, Anne‐Katrine Lundebye, Arne M. Malzahn, Hanne Nilsen, Tom S. Nordtvedt, Madelaine Norström, Magdalena M. Owczarek‐Kościelniak, Øivind Øines, Sonal J. Patel, Hilde Sindre, Inger B. Standal, Andreas Hagemann   +25 more
wiley   +1 more source

Deciphering the pathogenesis of melanized focal changes in the white skeletal muscle of farmed Atlantic salmon (Salmo salar)

Journal of Fish Diseases, Volume 47, Issue 10, October 2024.
Abstract Melanized focal changes (MFCs) in the fillet of farmed Atlantic salmon is a major quality concern. The changes are thought to initially appear as acute red focal changes (RFCs) that progress into chronic MFCs. Recent findings have indicated that hypoxia may be important in their development, possibly leading to necrosis affecting not only ...
Håvard Bjørgen, Malin Brimsholm, Charlotte Finstad Asserson, Kirstin Skaar, Geir Magne Knutsen, Øyvind Oaland, Randi Haldorsen, Per Gunnar Fjelldal, Tom Hansen, Espen Rimstad, Britta Andrea Kleist, Marius Lund‐Iversen, Mariusz Pawel Kowalewski, Erling Olaf Koppang   +13 more
wiley   +1 more source

The same strain of Piscine orthoreovirus (PRV-1) is involved in the development of different, but related, diseases in Atlantic and Pacific Salmon in British Columbia

FACETS, 2018
Piscine orthoreovirus Strain PRV-1 is the causative agent of heart and skeletal muscle inflammation (HSMI) in Atlantic salmon (Salmo salar Linnaeus, 1758).
Emiliano Di Cicco, Hugh W. Ferguson, Karia H. Kaukinen, Angela D. Schulze, Shaorong Li, Amy Tabata, Oliver P. Günther, Gideon Mordecai, Curtis A. Suttle, Kristina M. Miller   +9 more
doaj   +1 more source