Pond Boss Forums Thread Like Summary - What might be attacking our fish?

We went out to feed our catfish last night and we were practically horrified. Something is literally taking chunks out of the catfish. Any ideas what to look for? I don’t have any pictures. But one had about a quarter size chunk missing and the others look like they have been in a war. Can bluegill get that aggressive? As far as I know we only have large mouth, striped, bluegill and channel cats, and a coup/few grass carp in the pond. There are crawfish holes around the pond but I’ve never seen any. Maybe a turtle? I feel awful for the fish as it looks like they are literally being eaten alive.

Otters have made a great comeback in Ohio. We have a trapping season in all counties. Please note that they are NOT in season right now and that you should contact your county's wildlife officer to see if you allowed to trap nescience ones. I believe that all trapped otters need a CITES tag also. Otters can wreak havoc on a pond. My Uncles FW prawn farm in Noble co. was completely wiped out in a matter of days due to otters.