1. School of Fisheries, Aquaculture, and Aquatic Sciences Auburn University Auburn Alabama USA
2. Department of Biology, School of Mathematics and Sciences Lincoln Memorial University Tennessee Harrogate USA
3. U.S. Geological Survey, Cooperative Fish and Wildlife Research Units Auburn Alabama USA
4. Quantitative Ecological Services Portland Oregon USA
5. Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine Cairo University Giza Egypt