I'd love to have your "problem".

Open the place up for a catfish tournament. Charge a $50.00/2-man team entry fee, and let it be known that all of the catfish caught will be served up in a post-tournament fish fry. Offer to pay a taxidermist to mount the largest catfish caught during the tournament, and give him a portion of the proceeds collected as entry fees.

There is a catfish tournament like that here on a local river. It's a great annual event. And the fish are great eating!
:p