12-12-2009, 05:43 PM
I don't know much about biomass, but in my experience the best lakes for panfish have a good ratio of prey and predator fish in them. My comment about the catfish is just speculation so I won't know for sure until I can catch one and do a stomach analysis. I think it's good for Roberts to have some predator fish in it to bring up the average size of the perch. I'd much rather catch ten 10" perch than fifty 4" ones. Also, why would it become illegal to introduce another species into Roberts? Aren't all of the fish in there non-native?