Posted by: Bob Payne | August 2, 2011

About That Salmon

In 2007, a virus called infectious salmon anemia started killing millions of farm-raised salmon in Chile and devastated Chilean aquaculture. The virus was first detected in 1984 — long before salmon farming had spread around the globe — but what made it so lethal in 2007 was overcrowding in the offshore salmon pens and the fact that salmon were being raised in the midst of their own pollution. No one knew how the virus was transmitted, but a 2008 study at the University of Bergen determined it was carried in salmon eggs exported from Norway to Chile.


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