Not much to do with the lake once it gets to November to April. When do you return to IN? This winter you can access the forum and prepare a management plan for the future. Maybe even your goal will change by next April once you learn more about fish management and what is possible. I and other members will have ideas for you to consider this winter. I doubt that your water chemistry has changed very much since the lake filled. I suspect the water is relatively hard with good alkalinity (80-100mg/L) which makes the lake naturally productive - pretty typical for most IN impounded waters. You will want to build or buy a secchi disk and start monitoring the water transparency which often reflects the general productivity. Productivity governs the carrying capacity and amount of fish that usually comprises standing stock. With this info and your goals the amount of fish annually harvested can be estimated.
Disk reading times 3 or 3.5 = euphotic zone Hanson 1962., Round 1981.
Definition, Use, Homemade
http://www.secchidipin.org/whatis_secchi_disk.htmpurchase
http://www.secchidipin.org/secprice.htmHow to Use
http://rmbel.info/how-to-use-a-secchi-disk/Homemade Instructions
http://www.secchidipin.org/makedisk.htmIn the meantime, have you read through this lengthy thread from our Archives section about managing LMB? There is a lot of great diverse info there to read, study, contemplate, and ask questions about while you are in LA.
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=255372#Post255372I suspect you might refine your goals for the fishery once you learn more about predation, prey, balance and the possible options for a 30 acre lake.
