Just to throw this out there a very trusted source that runs a fish farm, rears yellow perch, and also manages ponds, says the belief that yellow perch will overpopulate a pond is horse hockey if vegetation is kept under control and largemouth bass are present.

I don't know of any ponds that have overpopulated yellow perch. Does anyone else? Bill Cody?

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.