Walsh wrote: "One thing is certain: if the world continues to eat more and more seafood, that fish will have to come from aquaculture, because fisheries simply can't support—sustainably—the global appetite for seafood. (Aquaculture already produces nearly half of the total weight of fish eaten worldwide.)
"But while GM salmon—and the engineering of other species for food—might help alleviate some of the pressure on wild fish, the debate misses the point.
"We've made an elemental mistake with aquaculture, choosing to farm the fish that we're used to catching and eating -- like salmon or bass or cod -- even though these species haven't taken very well to becoming our chickens of the sea."
