Ingredient lists, and farmed fish

Consumer protection laws work in strange ways, but one thing they do fairly well is to require that ingredients be listed on processed food. On a recent morning, drinking coffee imported from a warm place and eating smoked salmon from a cold place, I looked at the ingredient list on the front of the package of salmon, which read: "Atlantic Salmon, Salt, Hardwood Smoke." On the back of the package, this:

"Synthesized carotenoids are added to the feed of this farmed salmonoid to achieve the color that wild salmonoids develop from eating carotenoids found in their natural diet."

Some years ago, when I hosted a conference on sustainable fisheries , the fishermen present insisted that the conference dinner should be at a restaurant that served only wild fish...