1. U.S. Fish and Wildlife Service Alpena Fish and Wildlife Conservation Office, Detroit River Substation Gibraltar Michigan USA
2. Michigan Department of Natural Resources Lake St. Clair Fisheries Research Station Harrison Township Michigan USA
3. Ontario Ministry of Northern Development, Mines, Natural Resources and Forestry, Upper Great Lakes Management Unit Owen Sound Ontario Canada
4. Ontario Ministry of Northern Development, Mines, Natural Resources and Forestry Lake Erie Management Unit London Ontario Canada
5. U.S. Geological Survey Great Lakes Science Center Ann Arbor Michigan USA