Order PB mag. if you haven't done so. You can look at the table of contents of the mag at the archives (first link below) as well as a lot of good basic info. There is a lot of info here and at other locations on the web. See the 2nd link below also from the archives for some of those sources. In addition many states have pond management books/articles on the web. The last 3 links are examples (Calif has some - last link).

http://www.pondboss.com/ubb/ultimatebb.php?ubb=forum;f=22

http://www.pondboss.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=22;t=000021

http://msucares.com/pubs/publications/p1428.pdf

http://www.dnr.state.oh.us/publications/pondmanagement/pondmgt.pdf

http://www.dfg.ca.gov/fishing/assets/documents/InfoLeaflets/No_23.pdf