1. U.S. Geological Survey New York Water Science Center Troy New York 12180 USA
2. U.S. Fish and Wildlife Service Northeast Fishery Center Lamar Pennsylvania 16848 USA
3. U.S. Fish and Wildlife Service New York Field Office Cortland New York 13045 USA
4. Biology Department and Biological Field Station State University of New York College at Oneonta Oneonta New York 13820 USA
5. New York State Department of Environmental Conservation Stamford New York 12167 USA