Abstract
1 Marine Works Japan Ltd, Kamariyahigashi, 2-16-32 4F, Kanazawa-ku, Yokohama 236-0042, Japan
2 Department of Environmental Sciences, Faculty of Science, Shinshu University, Asahi, 3-1-1, Matsumoto 390-8621, Japan
3 Department of Microbiology and Immunology, Graduate School of Medicine, Tohoku University, Seiryo-machi, 2-1, Aoba-ku, Sendai 980-8575, Japan
4 Hitachi Plant Engineering & Construction Co., Ltd, Matsudo 271-0064, Japan
5 Department of Laboratory Sciences, School of Health Sciences, Faculty of Medicine, Gunma University, Showa-machi 3chome, 39-15, Maebashi 371-8514, Japan
6 Department of Ecological Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan
7 Department of Biology and Geosciences, Faculty of Science, Shizuoka University, Oya, 836, Shizuoka 422-8529, Japan