I once thought about doing something similar, but for shad. Putting a fence in my pond in about 4 feet of water to fence off about a 10 foot square. Fence to keep the bass out. Then adding shad into the fenced area. The thought was that the shad would reproduce, and the babies would swim out of the small mesh fence to grow. Never did it, added shad and they survived and proliferated. So didn't have to. But it should work. You could do the same type thing, but place pallets, limbs or such into the fenced area.

Nick Smith