We all know that fish are disappearing from our favorite rivers and streams, due to overfishing, poaching and mismanagement. Would it help matters for the long run if fishing in salmon producing rivers was closed for the lifecycle of one salmon, eg 4-5 years? Would this only help 1 run of fish or the whole river? I would certainly be willing to give up river fishing for that time if it would help get numbers back to where they were 10-15-years ago.