“The Native Fish Coalition . . . believes that hatchery fish should never be stocked on top of native fish or even where they might have access to native fish. Hatchery fish, it notes, are products of unnatural selection. They’re conditioned to crowded, coverless, cement raceways that erode fins. Instead of avoiding moving shadows they’re attracted to them because they’re often fed by hand. And they become easy pickings for avian predators because, even when fed by machine, they’re conditioned to feed on the surface. They are everything wild fish aren’t, so they do poorly in the natural world. And when superimposed on wild fish they compete with them for food and space, disrupt spawning, and sometimes pass on their inferior genes.””