Your lake is showing its age and lack of proper management for consistently producing large bass. Bass can easily overpopulate a lake this size unless lots of small bass are removed and the forage fish monitored for proper balance. Many new water bodies go through the same scenario. It is all about predator - prey balance.
The common larger bass were cropping the mid-size bluegill dramatically limiting the number that could become big BG. As the bass population changes from larger individuals of original stockers (now dying off - natural mortality) to numerous offspring later generation smaller bass the BG population will gradually become larger and larger individuals due to more mid-size BG surviving to continue growing toward large sizes. Managing a 30 ac lake in reality requires quite a bit of work and knowledge of fishery balance / management if a relatively steady state or special balance is desired. Many factors influence the fishery which is always changing. The trick is to monitor the constantly changing predator-prey balance and make needed adjustments as time passes.
Once a water body as big as 30 acres gets out of balance, it often takes a significant amount of effort, knowledge, and often money to shift it back to the original goals; in this case larger bass.
Last edited by Bill Cody; 11/03/14 08:29 PM.
