1. Aquaculture/Fisheries Center; University of Arkansas at Pine Bluff; 1200 N. University Drive Pine Bluff Arkansas 71601 USA
2. Thad Cochran National Warmwater Aquaculture Center; Mississippi State University; PO Box 197 Stoneville Mississippi 38776 USA
3. U.S. Department of Agriculture; Agricultural Research Service, Catfish Genetics Research Unit Thad Cochran National Warmwater Aquaculture Center; PO Box 38 Stoneville Mississippi 38776 USA