Summer sockeye are working their way up the Fraser River now, heading to Chase Creek and the late-run sockeye that call the Shuswap home, including the Adams and Eagle rivers, will soon be on their way.-Image credit: File photo

Scientific experts say fish virus poses low risk to Fraser River sockeye

Ecojustice lawyers say PRV was discovered in 2010 and is thought to cause a severe infectious fish disease

The risk is minimal for a potentially lethal virus for British Columbia’s Fraser River sockeye salmon, but Fisheries and Oceans Canada says there’s still more to learn.

Federal government scientists were among 33 members of a peer review panel that looked at the data and risk assessment of piscine orthoreovirus, or PRV.

The virus is highly contagious and often found in fish farms off the B.C. coast, many of which are positioned along wild salmon migration routes.

According to the environmental group Ecojustice, PRV was discovered in 2010 and is thought to cause a severe infectious fish disease known as heart and skeletal muscle inflammation.

It’s an infectious disease syndrome that was first observed in farmed Atlantic salmon in a single fish farm in Norway in 1999. There are now 419 farms infected with the disease in Norway, said Ecojustice.

Gilles Olivier, who co-chaired the review for Fisheries and Oceans Canada, said knowledge gaps about the virus include how long it survives and its concentration in the water.

READ MORE: Federal court rules farmed salmon must be tested for deadly virus in B.C.

While the virus is causing mortality in fish in Norway, it’s not killing British Columbia’s sockeye or Atlantic salmon even when it is injected in high doses, Olivier said in a conference call with reporters on Thursday.

“It doesn’t seem to have the same effect in our Atlantic salmon here in B.C. than it does in Norway,” he said.

“There is no evidence to suggest that PRV causes disease and mortality in sockeye salmon.”

But the virus cannot be cultured and has a wide geographic distribution ranging from Alaska, to B.C. and into Washington state, Olivier said.

“It’s not easy to work with this virus.”

Most of the data comes from Norway, but in B.C. the strain of the virus is not as strong, he said.

Dr. Craig Stephen, who also co-chaired the review, said the research will continue and as more information becomes available the department will take that into consideration.

The Cohen commission investigated the 2009 collapse of the sockeye salmon run in the Fraser River and made 75 recommendations.

The virus risk assessment represents the sixth in a series of 10 assessments arising out of the commission’s recommendations.

The Canadian Press

Like us on Facebook and follow us on Twitter.

Just Posted

Surrey developer says second Central City office tower doesn’t need to be taller

Application for second 25-storey tower at mall sent back to staff by Surrey council for being ‘way too low’

Some voters having trouble accessing polling stations: campaign manager

Schools in both Langley and Surrey having issues

Dog rescued from South Surrey house fire

Firefighters dispatched to 19400-block of 0 Avenue

Rec centre staff honoured for their help to revive teen who collapsed in weight room

BC Emergency Health Services presented Vital Link awards to four City of Surrey employees on Sunday

Body found after fire at Surrey gas station

Fire crews called to the 8700-block of Harvie Road, in Port Kells

Police watchdog seeking ‘key witness’ in Taser incident along Vancouver seawall

Independent Investigations Office of B.C. looking for woman who was sitting nearby with dog

Alberta man pleads guilty, fined for hunting without a licence in North Island

It’s the responsibility of each hunter or angler to know whether they are considered a B.C. Resident.

B.C. mayor apologizes for removal of Queen’s portrait from council chambers

‘I prefer to be inclusive of the many aspects of our history’

Alcohol a possible factor in crash that killed 17-year-old girl near Williams Lake

A pickup truck left the road and rolled over on Highway 20 on the weekend

Rare bird spotted in Victoria draws enthusiasts from across the continent

It’s the first time a yellow-browed warbler has been reported on the mainland of North America

B.C. woman must pay $1,000 after unleashed dog bites another

Owner should never have left Bibi unattended, tribunal member wrote

Climate activist Greta Thunberg’s mural defaced in Edmonton

The eyes on the portrait were blacked out

VIDEO: Depth and scoring lacking for Vancouver Giants this season: Coach

G-Men defeated on home ice Sunday by Victoria – next up Everett on Friday

Most Read