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You need a vast forage base to support walleye. They would end the giant perch in Cascade for sure.
Well show me the pics of all the 15 plus inch perch from those lakes back there sdhuntandfish . You cannot because the walleye and perch are in big competition there and the perch cannot quite make it to that size now do they. Sure you get a few but they didn't win the Ice Shanty big fish contest year after year, Cascade did.
Check out what the walleye did to the perch fishing in Canyon Ferry. The are implementing a 10 fish limit on perch this year.There are likely other factors at play but the extra mouths are the primary culprit.
Has there ever been a lake in Idaho that has been over fished in regards to perch? Never heard of one myself. I've only heard of lakes that have over populated and have stunted perch. Figured the pike would have changed the chain lakes but no they are still full of stunted perch. The walleye haven't put a dent in the perch at sfcr. Does anyone know of a lake in ID that has been negatively affected by the over harvest of perch? I can't think of one but I can name dozens that have suffered from over populated and stunted fish. I'm starting to think the best thing we can do to preserve the jumbo's in Cascade is to harvest every perch we can. Thoughts?