Thanks Bob

OK that makes sense but take the Snohomish system for example. Don't all those fish have the same genetic disposition? I thought all of those hatchery brats were from the Skamania strain. If they are all from the same strain shouldn't they all come back at the same time. But as we know they don't all come back at the same time some come back after 2 years and some after 3, or at least that is what I have heard. If this is true it does not make sense.
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