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All I am saying is a river system with a hatchery that introduced eggs from another river (Skamania steelhead in the Cow) probably has no true "wild/Native" fish because of interbreeding with the hatchery fish.
It makes sense.....but I don't think the science supports this conclusion. One study done on the Kalama showed little or no genetic dilution of the wild fish due to the presence of hatchery fish. The reason being that when a wild and hatchery fish spawn, their offspring have extremely poor survival rates, so they aren't able to pass those genetics on to their offspring.

I'd like to see studies of this nature done on many systems in the state to see if the results are the same.
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