Study: Salmon virus originally from the Atlantic, spread to B.C. wild salmon from farms
Wednesday PM (SitNews) - Piscine orthoreovirus (PRV) – which is associated with kidney and liver damage in Chinook salmon – is continually being transmitted between open-net salmon farms and wild juvenile Chinook salmon in British Columbia waters, according to a new genomics analysis published today in
The collaborative study from the University of British Columbia (UBC) and the Strategic Salmon Health Initiative (SSHI) a partnership between Fisheries and Oceans Canada (DFO), Genome BC and the Pacific Salmon Foundation traces the origins of PRV to Atlantic salmon farms in Norway and finds that the virus is now almost ubiquitous in salmon farms in B.C.
Virus spreads from B.C. fish farms to wild Chinook salmon, study finds By Lynda V. Mapes, The Seattle Times
Published: May 27, 2021, 7:39am
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A virus is being transmitted between net-pen salmon farms and wild juvenile Chinook salmon in British Columbia waters, according to new findings published Wednesday in Science Advances.
The study traces the origins of piscine orthoreovirus, or PRV, to Atlantic salmon farms in Norway, and found that the virus is now almost ubiquitous in salmon farms in B.C. The virus has been shown to sicken fish.
The collaborative, peer-reviewed study was done by the University of British Columbia and the Strategic Salmon Health Initiative a partnership between Fisheries and Oceans Canada, Genome BC and the Pacific Salmon Foundation.
Global expansion of aquaculture and agriculture facilitates disease emergence and catalyzes transmission to sympatric wildlife populations. The health of wild salmon stocks critically concerns Indigenous peoples, commercial and recreational fishers, and the general public. Despite potential impact of viral pathogens such as Piscine orthoreovirus-1 (PRV-1) on endangered wild salmon populations, their epidemiology in wild fish populations remains obscure, as does the role of aquaculture in global and local spread. Our phylogeographic analyses of PRV-1 suggest that development of Atlantic salmon aquaculture facilitated spread from Europe to the North and South East Pacific. Phylogenetic analysis and reverse transcription polymerase chain reaction surveillance further illuminate the circumstances of emergence of PRV-1 in the North East Pacific and provide strong evidence for Atlantic salmon aquaculture as a source of infection in wild Pacific salmon. PRV-1 is now an important infectious ag
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VIDEO: Piscine orthoreovirus (PRV) - which is associated with kidney and liver damage in Chinook salmon - is continually being transmitted between open-net salmon farms and wild juvenile Chinook salmon in. view more
Credit: Video credit: Amy Romer
Piscine orthoreovirus (PRV) - which is associated with kidney and liver damage in Chinook salmon - is continually being transmitted between open-net salmon farms and wild juvenile Chinook salmon in British Columbia waters, according to a new genomics analysis published today in
Science Advances.
The collaborative study from the University of British Columbia (UBC) and the Strategic Salmon Health Initiative (SSHI) a partnership between Fisheries and Oceans Canada (DFO), Genome BC and the Pacific Salmon Foundation traces the origins of PRV to Atlantic salmon farms in Norway and finds that the virus is now almost ubiquitous in salmon farms in B.C.