Friend and I have been fishing a 50 acre lake, max. 50' deep, for over 30 years that has some BIG Perch in it. We've limit ourselves to 30 each per year(summer and winter total) <11" and no fat females. The most amazing thing is that no one else seems to know they're there, what few they catch are the bait stealing dinks in with the 'gills around the weeds, cuts and cove. Believe they think we're chasing Crappies, we will let them lay on the ice while fishing for the curious to see, not the Perch. Made a mistake on a similar lake a few years ago of letting the knowledge out on the 'net, lake was desimated at ice out and hasn't been the same since. F'n, no class pigs that simply lurk and exploit, never again.