On Sat, 04 Aug 2007 20:24:03 -0700, Frank Reid
wrote:

Talked to a fisherman on the bank. He gave me the answer. Zebra
mussels. Lake is invested and its only a couple of hundred yards from
the Missouri River. This is the only water in Nebraska with the
infestation.
Right now, they're trying to figure out what to do. They may have to
drain it and let the bottom freeze. Potash is another solution. What
it will do is kill a lake that has state record size smallies and
walleye. The lake is dead, it just doesn't know it yet.
Frank Reid

Potash works.
http://www.dgif.virginia.gov/newsroom/news.asp?id=94