Even wild Alaskan salmon are becoming something of a hybrid. A system of hatcheries installed throughout the southern part of the state in the latter half of the twentieth century now “supplements” Alaskan rivers with almost a third of the salmon smolts that migrate out to sea every year. Is a salmon that is hatched and raised to toddlerhood in a human-run facility still a “wild” fish? … Seventy per cent of U.S.-caught wild salmon is exported abroad, mostly to Europe and Japan. . . about two-thirds of the salmon consumed by Americans is farmed in other countries. Often, it comes from Chile, a place that has no native salmon of its own and where introduced coho and Atlantics frequently escape their farms to become invasive species.