1. Department of Natural Resource Ecology and Management Oklahoma State University 008c Agricultural Hall Stillwater Oklahoma 74078 USA
2. Oklahoma Department of Wildlife Conservation 1801 North Lincoln Boulevard Oklahoma City Oklahoma 73152 USA
3. Oklahoma Department of Wildlife Conservation J. A. Manning State Fish Hatchery 18795 State Highway 49 Lawton Oklahoma 73507 USA
4. Oklahoma Department of Wildlife Conservation Oklahoma Fishery Research Laboratory 500 East Constellation Norman Oklahoma 73072 USA