1. Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, 100 Cheatham Hall, Blacksburg, Virginia 24061, USA
2. Virginia Department of Game and Inland Fisheries, 3801 John Tyler Memorial Highway, Charles City, Virginia 23030, USA
3. Department of Fisheries and Wildlife Science, Arkansas Tech University, 1701 North Boulder Avenue, Russellville, Arkansas 72801, USA