1. Charlevoix Fisheries Research Station, Michigan Department of Natural Resources, 96 Grant St., Charlevoix, MI 49720, USA.
2. School of Freshwater Sciences, University of Wisconsin-Milwaukee, 600 E Greenfield Ave., Milwaukee, WI 53204, USA.
3. Green Bay Fish and Wildlife Conservation Office, US Fish and Wildlife Service, 2661 Scott Tower Dr., New Franken, WI 54229, USA.
4. Illinois Natural History Survey, Lake Michigan Biological Station, Prairie Research Institute, University of Illinois, 400 17th St., Zion, IL 60099, USA.
5. Biology Department, Northern Michigan University, 1401 Presque Isle Avenue, Marquette, MI 49855, USA.
6. Daniel P. Haerther Center for Conservation and Research, John G. Shedd Aquarium, 1200 S. Lakeshore Drive, Chicago, IL 60605, USA.
7. Department of Forestry and Natural Resources, Purdue University, 195 Marstellar St., West Lafayette, IN 47907, USA.
8. Illinois–Indiana Sea Grant, 195 Marstellar St., West Lafayette, IN 47907, USA.
9. Quantitative Fisheries Center, Department of Fisheries and Wildlife, Michigan State University, 375 Wilson Road, 101 UPLA Building, East Lansing, MI 48824, USA.
10. Department of Environmental Science and Biology, State University of New York Brockport, 350 New Campus Dr., Brockport, NY 14420, USA.