I believe we've relied on hatcheries as a panacea for multiple ills, with poor results for wild fish.

At the same time, I can't help but wonder; if steelhead (or salmon) are so (genetically) mutable that they select for hatchery survival in only a couple of generations, why can't the reverse work for the surviving natural spawning generations of hatchery fish gone "native". It seems to me that this is already happening for the chinook in the Yakima R., but I haven't analyzed the return data for that river.