Salmo, thank you for your time, So I understand that no hatchery fish is good for Wild populations. But if we are stuck with hatchery fish that are intended to spawn in the gravel and return at the same times as the wild fish in the system. then from your post i would conclude that the Broodstock would have a lower negitive effect to the wild populations then that of the chambers creek or skamania stocks when cross breeding occurs. And then in my mind I would conclude that if hatchery fish must be in systems they are intended to co-mingle and spawn in the gravel, then why not Broodstock as I would think it is the best of the two evils.

Matt