Yes, I agree with Busy 100 percent. The Columbia was heavily overfished in the early statehood years and has never been allowed to come back. The other factor is the number of other fish around. Once upon a time it was probably only salmonoids and sturgeon. Now there is a 3,000,000 fish shad run on the Columbia and who knows how many small mouth bass and walleye. If you subscribe to the theory that a river system can only support so much bio-mass, then these other fishes are replacing salmon in the bio-mass equation.