A major new report has tallied up the losses of salmon and rainbow trout from escapes in the country where fish farms started - Norway. Marine Harvest, Cermaq and Grieg Seafood that operate in BC all originate in Norway.
What are the losses? If you can believe it, 16.3% of of farmed salmon and 18.3% of rainbow trout escaped from fish farms.
These companies operate in BC. If they lose fish at the same rate they do in Norway, the roughly 48,000,000 BC farmed salmon (80 farms times 600,000 fish per farm) that would mean 7.68 million farmed fish would be lost in BC every year.
That is a huge number, exceeding losses in Chile - typically 4 million per year, also far below the numbers from Norway. Something wrong is happening in Norway.
Read the science: http://www.mattilsynet.no/fisk_og_akvakultur/fiskevelferd/tap_av_oppdrettsfisk_kartlagt.15427.