Duke,
If you want to know for sure you would need a shocking survey for the most accurate info. Your next best bet would be to keep records (length and weight) of all of your catches and check their distributions and relative weights. You can look online for a 'fish calculator' that will give you an idea of the average weight per length of your fish. One can be downloaded from
www.ibnature.com (guess its ok to post the link). I would be a little concerned that you may have too many bass in your pond and may need to boost your bass harvest, and take out some of the 10"-14" bass, in order to let some of the others grow up... Well, thats my 2 cents.
Sarchasm
