Science. It works.

A lethal and highly contagious marine virus has been detected for the first time in wild salmon in the Pacific Northwest, according to researchers in British Columbia. It is called infectious salmon anemia, and started in aquaculture salmon farms who import millions of eggs from Europe. The only barrier between the salmon farms and wild fish is a net, opening the way for pathogens to sweep in and out. No treatment exists for infectious salmon anemia. Enjoy those sockeye while you can!