1. Biogeochemistry Research Center (BGC), Research Institute for Marine Resources Utilization (MRU), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima, Yokosuka 237-0061, Japan
2. Department of Science and Technology, Graduate School of Medicine, Science and Technology, Shinshu University, 3-1-1 Asahi, Matsumoto 390-8621, Japan
3. Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima, Yokosuka 237-0061, Japan
4. Kochi Institute for Core Sample Research (KOCHI), Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 200 Monobe, Nankoku 783-8502, Japan
5. Atmosphere and Ocean Research Institute (AORI), The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa 277-8564, Japan
6. Advanced Science-Technology Research Program (ASTER), Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima, Yokosuka 237-0061, Japan
7. Mantle Drilling Promotion Office, Institute for Marine-Earth Exploration and Engineering (MarE3), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3173-25 Showa, Kanazawa, Yokohama 236-0001, Japan
8. Kanto Natural Gas Development Co., Ltd., 661 Mobara, Mobara 297-8550, Japan
9. Department of Environmental Science, Faculty of Science, Shinshu University, 3-1-1 Asahi,Matsumoto 390-8621, Japan