1. Department of Biology and Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, 48859
2. Great Lakes Laboratory for Fisheries and Aquatic Sciences, Fisheries and Oceans Canada, Burlington, Ontario, Canada, L7S 1A1
3. U.S. Geological Survey Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan, 48105
4. National Oceanic and Atmospheric Administration, Great Lakes Environmental Research Laboratory, 1431 Beach St., Muskegon, Michigan, 49441
5. Department of Biology and Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, Michigan, 48859