Would be interesting to see what would happen if a river with decent habitat and a wild fish population still somewhat making escapement was no longer planted with hatchery fish as a test case. More than likely it would take years to get any results. But I think we would have a better understanding of what affects they have. Until then I agree with Doc they need to be removed from the gene pool. The bigest issue I see getting away from hatchery raised steelhead is it would greatly reduce opportunity and most are not willing to give that up.