I've always believed that Coho are more susceptible to hooking mortality than Kings for example. Coho almost always roll on the line and once in the net always tangle themselves up horribly. Oregon fishing patrols this summer in the ocean have had a 50% incident rate of citations for fisherman not pinching their barbs. Grandpa, you cite education and improvements with releasing of fish. I don't really see that. I fish in many different locations and everywhere I go, I still see fisherman netting fish and then throwing them back overboard, messing with a fish trying to release it for 5 to 10 minutes at the side of the boat etc. Sure I see some fisherman releasing fish the right way but I see far more doing it the wrong way. Even with barbless hooks it's sometimes difficult to release a fish. And this goes way up when using treble hooks. If I can't immediately remove a hook with a de-hooker, then I just cut the leader close to the mouth. Most lures for trolling bait are pre-tied with trebles. I still say that if the law was you get two fish irregardless of wild or hatchery and your done that he mortality to wild stocks would be less.