1. U. S. Geological Survey Kansas Cooperative Fish and Wildlife Research Unit Kansas State University Manhattan KS 66506 USA
2. National Oceanic and Atmospheric Administration Fish Ecology Division Northwest Fisheries Science Center Seattle WA USA
3. Kentucky Department of Fish & Wildlife Resources Bowling Green KY USA
4. Kansas Cooperative Fish and Wildlife Research Unit Manhattan KS USA
5. Massachusetts Department of Fish and Game Division of Ecological Restoration Boston MA USA
6. U.S. Geological Survey Texas Cooperative Fish and Wildlife Research Unit Department of Natural Resources Management Texas Tech University Lubbock TX USA
7. Federal Energy Regulatory Commission Washington D.C. USA