Nov. 17 (Bloomberg) — Salmon, once a pricey delicacy, is now an affordable staple at supermarkets and sushi restaurants everywhere. For that, we can thank fish farms. They produce 70 percent of the salmon eaten by consumers, who savor its subtle texture and rich flavor. Medical researchers say the fatty acids in salmon might help prevent cancer and heart disease.
So it was troubling that researchers over the past few weeks may have found an infectious disease known as salmon anemia in wild fish in British Columbia. Lawmakers and fisheries managers in the U.S. and Canada see the illness as a threat to a $3 billion industry. Although Canadian officials said further tests seemed to be negative, the episode is a reminder of the need to make serious improvements in aquaculture practices.