Abstract
1 College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
2 School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK
3 National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, 1815 North University Street, Peoria, IL 61604, USA
4 Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, UK