I agree with both Dave and TGW1.
Another way to help in your sampling is using fish traps. A baited minnow trap can catch small BG, GSF, BH and minnows. Will give you an idea of the diversity and species in the pond. Larger fish traps can catch larger specimens. Fish traps are not good at trapping all species (have never caught a LMB in any of my traps), but they are another tool to help you get an idea of what is in your pond. Minnow traps are especially good at seeing what success your forage fish spawns are having.
