1. U. S. Geological Survey; Columbia Environmental Research Center; Fort Peck Project Office; Fort Peck MT USA
2. Fisheries and Oceans Canada; Bedford Institute of Oceanography; Dartmouth NS Canada
3. Life and Environmental Sciences; University of Iceland; Reykjavik Iceland
4. Montana Fish, Wildlife & Parks; Fort Peck MT USA
5. Wisconsin Department of Natural Resources; Oshkosh WI USA
6. U. S. Fish and Wildlife Service; Billings MT USA