Salmo g., you have got it right man. The best thing we can do to positvely affect the quality of our fishing is to release those fish that bite agressively and spawn repeatedly. Us 10% of the fishermen that catch 90% of the fish can more than fill up on returning adult salmon, and have no need to kill native char, cutts, or steelhead. These fish not only spawn repeatedly, they bite repeatedly - I personally have caught the same wild steelhead 3 times in one day - and leaving them in the water is what makes the fishing stay good.