1. National Research Institute of Aquaculture, Farming Biology Division; Fisheries Research Agency; 422-1 Minamiise, Watarai Mie 516-0193 Japan
2. Department of Marine Bioscience; Fukui Prefectural University; Fukui 917-0003 Japan
3. Laboratory of Bioindustrial Informatics, Graduate School of Agricultural Science; Tohoku University; Aoba-ku, Sendai Miyagi 981-8555 Japan