1. Montana Cooperative Fishery Research Unit Department of Ecology Fish and Wildlife Ecology and Management Program Montana State University Bozeman Montana USA
2. U.S. Geological Survey Montana Cooperative Fishery Research Unit Department of Ecology Fish and Wildlife Ecology and Management Program Montana State University Bozeman Montana USA
3. Department of Ecology Fish and Wildlife Ecology and Management Program Montana State University Bozeman Montana USA
4. Montana Fish, Wildlife, and Parks Havre Montana USA
5. Montana Fish, Wildlife, and Parks Missoula Montana USA
6. Maontana Fish, Wildlife, and Parks Glasgow Montana USA