Authorities Consulted and Personal Communications
- Nicholas E. Mandrak. 2007. Great Lakes Laboratory for Fisheries and Aquatic Sciences, Fisheries and Oceans Canada, Burlington, Ontario L7R 4A6.
- Becky Cudmore. 2007. Great Lakes Laboratory for Fisheries and Aquatic Sciences, Fisheries and Oceans Canada, Burlington, Ontario L7R 4A6.
- Alan J. Dextrase. 2007, 2008. Ontario Ministry of Natural Resources, Box 7000, Peterborough, Ontario K9J 8M5.
- John Lyons, Wisconsin Department of Natural Resources, Monona, Wisconsin 53716-3736.