1. Ecology and Environmental Sciences Program School of Biology and Ecology University of Maine Orono Maine 04469 USA
2. Wisconsin Department of Natural Resources, Office of Applied Science 2801 Progress Road Madison Wisconsin 53716 USA
3. Wisconsin Department of Natural Resources, Bureau of Watershed Management 101 South Webster Street Madison Wisconsin 53707 USA
4. Wisconsin Department of Natural Resources, Bureau of Fisheries Management 3911 Fish Hatchery Road Fitchburg Wisconsin 53711 USA
5. U.S. Geological Survey Eastern Region Ecological Science Center Aquatic Ecology Laboratory 11649 Leetown Road Kearneysville West Virginia 25430 USA
6. College of Natural Resources University of Wisconsin–Stevens Point 800 Reserve Street Stevens Point Wisconsin 54481 USA
7. Iowa Department of Natural Resources Decorah Fish Hatchery 2325 Siewers Spring Road Decorah Iowa 52101 USA
8. Minnesota Department of Natural Resources 2003 Upper Buford Circle, 135 Skok Hall St. Paul Minnesota 55108 USA
9. Department of Fisheries, Wildlife, and Conservation Biology University of Minnesota 2003 Upper Buford Circle, 135 Skok Hall St. Paul Minnesota 55108 USA
10. U.S. Geological Survey Great Lakes Science Center Michigan State University Cooperative Ecosystem Studies Unit 1451 Green Road Ann Arbor Michigan 48105 USA
11. Washington Department of Fish and Wildlife 3515 Highway 97A Wenatchee Washington 98801 USA
12. Ontario Ministry of Natural Resources and Forestry Aquatic Research and Monitoring Section 2140 East Bank Drive Peterborough Ontario K9J 7B8 Canada
13. U.S. Geological Survey Wisconsin Cooperative Fishery Research Unit College of Natural Resources University of Wisconsin–Stevens Point 800 Reserve Street Stevens Point Wisconsin 54481 USA
14. National Oceanic and Atmospheric Administration National Marine Fisheries Service Alaska Fisheries Science Center, Auke Bay Laboratories 17109 Point Lena Loop Road Juneau Alaska 99801 USA