We have a near 1 acre pond in southern Wisconsin. We stocked it about 13 years ago with 1000 bluegills 200 largemouth bass and 100 channel catfish. Just last year we went up to the pond in the spring and saw many bass upwards of 20" floating dead near the shore. We have no idea how this happened. Since it has happened we havent seen any bass and the bluegills have started growing MUCH bigger, its easy to catch 20 in excess of 1lb each. The bluegills must have taken over as the main predator in the pond. Since the bass died we have seen a huge increase in the amount of carp, brown bullheads and insanely large common shiners. We have thrown over 100 carp on shore this spring so far and we still catch 2-5 large ones each time we go. Is it possible to fish a species like this out? We are thinking about killing off the pond and starting over because we aren't sure if restocking bass will do any good. Does anyone have any suggestions for getting rid of these bad fish without killing everything in the pond?