Spark,
I am curious as to what riverd now have healthy "wild" runs of fish after helping them past the barrier...you can email me on that if you rather not post it here.

Also didn't the studies on the south puget sound naturally spawning chum runs show an average 17% stray rate?? I think they did, that is why I can't jump on the pure strain band wagon, you should know from your genetics classes what happens with continual breeding within the same gene pool.

JimB