A farmed Atlantic salmon, one of several caught off of French Creek within the past several days, has been frozen and will be delivered to Fisheries and Oceans Canada for examination. (J.R. Rardon photo)

Virus found in farmed salmon linked to disease in B.C. chinook

New research by Pacific Salmon Foundation shows a strain of the virus may be affecting wild salmon

New research has shown that a virus known to cause disease in farmed Atlantic and Pacific salmon may cause a related disease in wild B.C. chinook salmon.

The results of a study by the Pacific Salmon Foundation show strong evidence that wild chinook is at risk of being exposed to high levels of picscine orthoreovirus (PRV), a virus causing heart and skeletal muscle inflammation disease (HSMI) in farmed Atlantic salmon.

“These findings add to the existing concerns about the potential impacts of open net salmon farming on wild Pacific salmon off the coast of B.C.,” said Dr. Brian Riddell, president and CEO of the Pacific Salmon Foundation, in a press release.

Decline in wild salmon stocks on the West Coast of Canada has lead to commercial and recreational fishing closures. On May 8, the Department of Fisheries and Oceans closed fishing to recreational anglers on the Skeena and Nass rivers on the North Coast. More restrictions or possible closures are expected to be announced in June for the commercial industry, and for First Nations food, ceremonial and social fishing.

READ MORE: Salmon closures a devastating blow to North Coast business

The Pacific Salmon Foundation estimates a high prevalence of PRV — up to 75 per cent — in net pen salmon. Some strains of the virus have been associated with jaundice-related diseases in Pacific salmon, but for the first time new research shows the PRV strain that causes HSMI has been found in B.C. wild salmon. The study found this particular strain of PRV was related to the development of jaundice and anemia in chinook salmon.

“This research confirms our worries that migrating juvenile wild Pacific salmon are vulnerable to diseases transmitted from open net-pen fish farms. Disease transmission could be the additional stressor that tips the scales for some wild salmon populations,” said Jay Ritchlin, David Suzuki Foundation director-general for B.C. and Western Canada.

READ MORE: DFO contemplating sweeping North Coast salmon fishery closure



shannon.lough@thenorthernview.com

Like us on Facebook and follow us on Twitter

Just Posted

Prince Rupert students learn to chase away anxiety

Author Amanda Stern presented at Prince Rupert Middle School on Feb. 22

Northern residents rejoice at increased BC Ferries sailings

B.C. government announced that service will be restored to 2014 levels

Rio Tinto donates $50K for Shames Mountain chairlift upgrades

The money was used to purchase the chairlift’s bull wheel replacement last summer

More sailings coming to 10 BC Ferries’ routes

Transportation Minister Claire Trevena said the sailings were originally cut in 2014

Cullen remains uncertain about political future

Says he’ll make decision in early March

Ice skating on the North Coast, a rare treat

Seawolves hockey players bring their gear to Oliver Lake this week to play on the outdoor rink

Have you heard the legend of Shuswaggi, the Shuswap Lake monster?

Witness accounts as old as 1904, and as recent as 2018, place a creature in the lake’s depths

UPDATE: B.C. ticket holder winner of $25.9-million Lotto Max jackpot

Next draw set for Mar. 1 with an estimated jackpot of $10 million

B.C.-based ‘Team Tardi’ brings home gold in junior curling worlds

In a 9-4 victory over Switzerland, a Langley-based curling team earned its 2nd straight world title

People gather for funeral of seven children killed in fast-moving Halifax fire

Traditional portion of the service will be followed by words from community members

B.C. weavers to help Alaska Native project honouring survivors of violence

Dozens of Chilkat and Ravenstail weavers from all over North America will be weaving 5-inch-by-5-inch squares

B.C. skip Sarah Wark and team eliminated at Scotties Tournament of Hearts

Nontheless pretty impressive stuff from the 24th-ranked team in the country

Pope’s sex abuse prevention summit explained

It’s A high-stakes meeting designed to impress on Catholic bishops the global problem

Girl heard saying ‘Help my Dad’ in suspicious radio message on Vancouver Island

Police asking for help following mysterious signals from somewhere between Comox and Sayward

Most Read