1. Department of Wildlife, Fisheries and Aquaculture, Thad Cochran National Warmwater Aquaculture CenterMississippi State UniversityBox 9690, Mississippi StateMississippi39762USA
2. Department of Agricultural EconomicsMississippi State UniversityBox 5187, Mississippi StateMississippi39762USA
3. Department of Fisheries and Allied AquaculturesAuburn University203 Swingle HallAuburnAlabama36849USA
4. Thad Cochran National Warmwater Aquaculture CenterMississippi State UniversityBox 197StonevilleMississippi38701USA