I've caught them in just about every lake I've fished in small numbers. There's a lot of them in the Cuyahoga in Kent and Cuy. Falls. Caught 4 in a short time fishing by the dams that are being removed right now. They taste like bluegill to me. I'll keep them if they are big enough. Like their name says, they like rocky areas where they hide, then shoot out very fast to hit any bait that comes by! Very aggressive fish!