Black Crappie - Slow: Try jig and minnows around the submerged structure.
Bluegill - Fair: Try small jigs around the shorelines and the submerged structure.
Channel Catfish - Fair: Use nightcrawlers or cut bait along shorelines in 4-8 feet of water.
Largemouth Bass - Fair: Try spinnerbaits or crankbaits fished around submerged structures.
Source: Iowa DNR