Keep at them until they stop, then move on along the bank. In a small lake or pond, you can make several circuits and catch more than you want to clean. If you are disturbed about catching fish as they're spawning, rest easy. Bluegill are among the most prolific fish of all, and you can take hundreds from most lakes without making a dent in the population. The very best bluegill lakes always have either a good population of medium to big largemouth bass or flathead catfish.
Flatheads especially seem to keep lake populations in balance by gobbling up smaller fish.
Tune in next week for a fly casting for bluegill primer.