Been fishing a bit more this year and I have been catching white perch (SE MI). Tons of these things. They are worse than the crappie. Also not seeing much in the way of bluegill this year. Any idea what might eat these things? The herons picks them off easily. I've caught some nice bass this year but that's slowed down now. I was catching a 4+ lb bass daily for a good two weeks. Biggest was 7.3lbs and just shy of 22 inches. I'd love to have bigger bluegill and crappie but I think these perch are causing me issues.