1. Montana Cooperative Fishery Research Unit Department of Ecology Montana State University Bozeman Montana USA
2. Fish and Aquatics BC Hydro Castlegar British Columbia Canada
3. U.S. Fish and Wildlife Service Bozeman Fish Technology Center Bozeman Montana USA
4. Terraquatic Resource Management Nelson British Columbia Canada
5. U.S. Geological Survey Montana Cooperative Fishery Research Unit Department of Ecology Montana State University Bozeman Montana USA