Tag Archives: Piscine orthoreovirus
A study suggests farmed fish is the source of a virus spread among wild salmon as they migrate past
Evidence shows a debilitating virus found in British Columbia salmon was transferred from Atlantic fish farms, which then spread from Pacific aquaculture operations into wild fish, says a study published Wednesday. The researchers used genome sequencing to trace the piscine orthoreovirus, or PRV, that they say was first introduced to B.C. waters from Norway about 30 years ago at the start of open-net pen aquaculture in the province. The study, published in the peer-reviewed journal Science Advances, says the evidence now suggests the virus is continuously spread between farmed and wild Pacific salmon as they migrate past the farms. >click to read< 10:25
Russell Wangersky – Farmed Salmon: Left behind
It sometimes feels that we’re perpetually jumping onto a ship just about the same time as everyone else is abandoning it. And nowhere does it seem more like that than in the aquaculture business. As the plans steamroller ahead for a new massive Placentia Bay open pen Atlantic salmon project with the provincial government (and key regulator) fully onside, it’s hard to ignore that many others are moving in the other direction. In the state of Washington, a large-scale fish escape saw that state announce a ban on Atlantic salmon pen farming and a wind-down of existing operations. (The salmon aquaculture business in Washington is back under the microscope this month after 800,000 juvenile salmon had to be destroyed because they were found to be carrying a strain of Piscine orthoreovirus, which is dangerous for wild stocks of salmon.) >click to read<
