I watched a show a couple of months ago about some guys in FL who belong to an informal club of bass fishermen. They now go out and specifically target Snake heads and fillet them out and have fish frys and eat them. They claimed the snake heads are delicious. I think it was the Andrew Zimern show "Bizarre Foods". I agree with Flags that once those things are in a waterway, they are there to stay but these guys at least were making the best of a bad situation, helping the bass and getting some good eats.