1. The Ohio State University F.T. Stone Laboratory Ohio Sea Grant School of Environment and Natural Resources, 878 Bayview Avenue, PO Box 119, Put-In-Bay, OH 43456.
2. Lake Erie Islands Conservancy, PO Box 461, Put-in-Bay, OH 43456.
3. Department of Biology and Environmental Science and National Center for Water Quality Research, Heidelberg University, Tiffin, OH 44883.