1. Department of Agricultural Economics, Oklahoma State University, Stillwater, Oklahoma, USA
2. Department of Agriculture, Texas State University, San Marcos, Texas, USA
3. Engle-Stone Aquatic$ LLC, Strasburg, Virginia, USA
4. Department of Agricultural & Applied Economics, Texas Tech University, Lubbock, Texas, USA
5. Agricultural/Resource Economics Division, Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada