It is harder to kill off fish than mammals. But after 1,000 years of hunting the Atlantic cod, we know that it can be done. - Mark Kurlansky

Commercially successful fish farms reduce operating costs by feeding pellets of pressed fish meal rather than wild bait fish. In the case of salmon they are also fit artificial coloring to give them the pink tin to the acquire in the wild from eating crustaceans. Gastronomically, a wild salmon and a farmed salmon have as much in common as a side of wild boar has with pork chops.

Man wants to see nature and evolution as separate from human activities. There is a natural world, and there is man. But man also belongs to the natural world. If he is a ferocious predator, that too is part of evolution. If cod and haddock and other species cannot survive because man kills them, something more adaptable will take their place. Nature, the ultimate pragmatist, doggedly searches for something that works. But as the cockroach demonstrates, what works best in nature does not always appeal to us.

If ever there was a fish made to endure, it is the Atlantic cod—the common fish. But it has among its predators man, an openmouthed species greedier than cod.