The Bluegill is a popular prey species in most ponds. They are very prolific and may spawn 2-4 times per summer. This characteristic can cause Bluegills to overpopulate. Keeping a balanced predator to prey ratio is critical to prevent overpopulation and stunting of Bluegills. Be sure to follow a conservative approach when stocking Bluegill. The Bluegill have and 8-10 year lifespan.