toph20, I'm sendig a personal email about the crayfish, but wanted to mention that I manage several ponds in the Duluth area. Most of the time we can use a angle of improved asethetics, water quality, etc. to get the board to approve a contract if few fisherman are members of the HOA. I can also attend the HOA mettings to better descirbe benefits of a lake management contract. The fact is usually included is a water quality and fisheries analysis. We would be able to determine the thermocline while perfroming the water quality analysis.
