1. Department of Fish, Wildlife and Conservation Ecology New Mexico State University 2980 South Espiña, Knox Hall 132 Las Cruces New Mexico 88003 USA
2. U.S. Geological Survey New Mexico Cooperative Fish and Wildlife Research Unit 2980 South Espiña, Knox Hall 132 Las Cruces New Mexico 88003 USA
3. U.S. Fish and Wildlife Service Midwest Fisheries Center 555 Lester Avenue Onalaska Wisconsin 54650 USA
4. U.S. Fish and Wildlife Service Southwestern Native Aquatic Resources and Recovery Center 7116 Hatchery Road Dexter New Mexico 88230 USA
5. Department of Economics, Applied Statistics, and International Business New Mexico State University Box 30001/MSC 3CQ Las Cruces New Mexico 88003 USA