I think that the zebra mussels are far more responsible for the decline in big trout in East Twin than any one will admit to. Years ago you would see huge schools of alewives in the shallows. You don't see that any more. The zebra mussels filter out the exact thing that the alewives eat. And guess what? You can't get rid of them they just keep spredding on the lake. Lake Ontario's great brown trout and lake trout fishery has taken a big hit because of the same thing.