1. Department of Oceanography, Chonnam National University, 500-757 Kwangju, Korea
2. Department of Biological Science, Sungkyunkwan University, 440-746 Suwon, Korea
3. Department of Biology, University of Incheon, 402-749 Incheon, Korea
4. Department of Marine Biotechnology, Soonchunhyang University, 336-745 Asan, Korea
5. Department of Biology, St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada