Do you keep catch records from anglers. Those records will tell the story. Several presentations at last week's Pond Boss Conference addressed your problems very well. If you were there you would have a very good plan to start analyzing your problem and fixing it. There is lots of good information here about fixing overpopulated & over crowded bass problems. The Jan-Feb 2011 back-issue of PBoss magazine tells all about your problem. Articles were: What To Do About Overcrowded Bass (Lusk), and Fish Biology 103: How Can I Tell If MY Bass Are Overpopulated (Willis & Lusk). I suggest you read that back issue and search the Common Pond Q&A Archives for lots of advice. Come back with questions if you still need answers.
You will get a little help by reading these old topics:
http://forums.pondboss.com/ubbthreads.ph...true#Post251221

Last edited by Bill Cody; 04/19/11 09:01 AM.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management