"Theres a series of small ponds attached by a small channel that the largemouth come into by the hundreds in the spring to spawn."

I wonder if you could close that channel off once the LMB have gone into those smaller ponds to spawn as a method of culling LMB? There may also be some value in sealing those ponds off to use for growing vast amounts of forage fish.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."