I think managing a pond that floods from a nearby river is futile. When you have little to no control of what enters the lake and all kinds of rough fish can enter you are probably wasting your time. We lease a 250 acre private lake that floods once or twice a year and it is full of rough fish. We accept the lake for what it is; as we have a handfull of members who enjoy catching buffalo, carp, and catfish. But managing a lake like this for bass is futile in my opinion.