1. Aquaculture & Fisheries Center; University of Arkansas at Pine Bluff; 1200N, University Drive Pine Bluff Arkansas 71601 USA
2. Engle-Stone Aquatic$ LLC; Virginia USA
3. U.S. Department of Agriculture, Agricultural Research Service, Catfish Genetics Research Unit; Thad Cochran National Warmwater Aquaculture Center; PO Box 38, Mississippi State University Stoneville Mississippi 38776 USA