1. Colorado Parks and Wildlife Aquatic Research Section, Montrose, CO 81401, USA
2. U.S. Fish and Wildlife Service Bozeman Fish Health Center, Bozeman, MT 59718, USA
3. Colorado Cooperative Fish and Wildlife Research Unit, Colorado State University, Fort Collins, CO 80523, USA
4. Colorado Parks and Wildlife Aquatic Animal Health Lab, Brush, CO 80723, USA
5. Colorado Parks and Wildlife Aquatic Research Section, Fort Collins, CO 80526, USA