Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses
Abstract Disease interactions between farmed and wild populations have been poorly documented for most aquaculture species, in part due to the complexities to study this. Here, we tested 567 farmed Atlantic salmon escapees, captured in a Norwegian river during 2014–2018, for five viral infections th...
Published in: | Journal of Fish Diseases |
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Online Access: | http://dx.doi.org/10.1111/jfd.13950 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13950 |
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crwiley:10.1111/jfd.13950 2024-06-23T07:51:24+00:00 Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses Madhun, Abdullah S. Karlsbakk, Egil Skaala, Øystein Solberg, Monica F. Wennevik, Vidar Harvey, Alison Meier, Sonnich Fjeldheim, Per T. Andersen, Kaja Christine Glover, Kevin A. Miljødirektoratet 2024 http://dx.doi.org/10.1111/jfd.13950 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13950 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Fish Diseases volume 47, issue 7 ISSN 0140-7775 1365-2761 journal-article 2024 crwiley https://doi.org/10.1111/jfd.13950 2024-06-11T04:41:54Z Abstract Disease interactions between farmed and wild populations have been poorly documented for most aquaculture species, in part due to the complexities to study this. Here, we tested 567 farmed Atlantic salmon escapees, captured in a Norwegian river during 2014–2018, for five viral infections that are prevalent in global salmonid aquaculture. Over 90% of the escapees were infected with one or more viruses. Overall prevalences were: 75.7% for piscine orthoreovirus (PRV‐1), 43.6% for salmonid alphavirus (SAV), 31.2% for piscine myocarditis virus (PMCV), 1.2% for infectious pancreatic necrosis virus (IPNV) and 0.4% for salmon anaemia virus (ISAV). A significantly higher prevalence of PMCV infection was observed in immature compared to mature individuals. The prevalence of both SAV and PMCV infections was higher in fish determined by fatty acid profiling to be ‘recent’ as opposed to ‘early’ escapees that had been in the wild for a longer period of time. This is the first study to establish a time‐series of viral infection status of escapees entering a river with a native salmon population. Our results demonstrate that farmed escapees represent a continuous source of infectious agents which could potentially be transmitted to wild fish populations. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Sav’ ENVELOPE(156.400,156.400,68.817,68.817) Journal of Fish Diseases |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Disease interactions between farmed and wild populations have been poorly documented for most aquaculture species, in part due to the complexities to study this. Here, we tested 567 farmed Atlantic salmon escapees, captured in a Norwegian river during 2014–2018, for five viral infections that are prevalent in global salmonid aquaculture. Over 90% of the escapees were infected with one or more viruses. Overall prevalences were: 75.7% for piscine orthoreovirus (PRV‐1), 43.6% for salmonid alphavirus (SAV), 31.2% for piscine myocarditis virus (PMCV), 1.2% for infectious pancreatic necrosis virus (IPNV) and 0.4% for salmon anaemia virus (ISAV). A significantly higher prevalence of PMCV infection was observed in immature compared to mature individuals. The prevalence of both SAV and PMCV infections was higher in fish determined by fatty acid profiling to be ‘recent’ as opposed to ‘early’ escapees that had been in the wild for a longer period of time. This is the first study to establish a time‐series of viral infection status of escapees entering a river with a native salmon population. Our results demonstrate that farmed escapees represent a continuous source of infectious agents which could potentially be transmitted to wild fish populations. |
author2 |
Miljødirektoratet |
format |
Article in Journal/Newspaper |
author |
Madhun, Abdullah S. Karlsbakk, Egil Skaala, Øystein Solberg, Monica F. Wennevik, Vidar Harvey, Alison Meier, Sonnich Fjeldheim, Per T. Andersen, Kaja Christine Glover, Kevin A. |
spellingShingle |
Madhun, Abdullah S. Karlsbakk, Egil Skaala, Øystein Solberg, Monica F. Wennevik, Vidar Harvey, Alison Meier, Sonnich Fjeldheim, Per T. Andersen, Kaja Christine Glover, Kevin A. Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
author_facet |
Madhun, Abdullah S. Karlsbakk, Egil Skaala, Øystein Solberg, Monica F. Wennevik, Vidar Harvey, Alison Meier, Sonnich Fjeldheim, Per T. Andersen, Kaja Christine Glover, Kevin A. |
author_sort |
Madhun, Abdullah S. |
title |
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
title_short |
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
title_full |
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
title_fullStr |
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
title_full_unstemmed |
Most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
title_sort |
most of the escaped farmed salmon entering a river during a 5‐year period were infected with one or more viruses |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1111/jfd.13950 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.13950 |
long_lat |
ENVELOPE(156.400,156.400,68.817,68.817) |
geographic |
Sav’ |
geographic_facet |
Sav’ |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Journal of Fish Diseases volume 47, issue 7 ISSN 0140-7775 1365-2761 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/jfd.13950 |
container_title |
Journal of Fish Diseases |
_version_ |
1802642483482460160 |