*AKARI FUKUDA¹, HIDEKI Numanami², Yohey Suzuki³, Ryo Matsumoto¹ (1.Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, 2.Department of Home Economics, Faculty of Home Economics, Tokyo Kasei-Gakuin University, 3.Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo)

*Mikio Satoh¹, Takeshi Oi², Mineo Hiromatsu³, Ryo Matsumoto² (1.Institute for Geo-Resources and Environment, Geological Survey of Japan, AIST, 2.Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, 3.Center for Earth Information Science and Technology, JAMSTEC)

*Takashi Uchida¹, Hiroki Sakai¹, Sena Horiuchi¹, Ryo Matsumoto² (1.Akita Univesity Faculty of Engineering and Resource Science, 2.Meiji University)

*Takeshi Oi¹, Fumio Akiba², Ryo Matsumoto¹ (1.Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, 2.Diatom Minilabo Akiba Company Limited)

*Mahsa Saeidi Ortakand¹, Ryo Matsumoto¹ (1.Meiji Univ.)

*Ryo Matsumoto¹, Akihiro Hiruta¹, Yoshihiro Kakizaki¹ (1.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Yoshihiro Kakizaki¹, Tsuyoshi Ishikawa², Tatsuya Kawai³, Akihiro Hiruta¹, Ryo Matsumoto¹ (1.Gas Hydrate Research Laboratory, Organization for Strategic Coordination, Meiji University, 2.Kochi Institute for Core Sample Research, JAMSTEC, 3.Department of Marine & Earth Sciences, Marine Works Japan Ltd.)

*Ryousuke Nakajima¹, Hitoshi Tomaru¹, Ryo Matsumoto², Yuki Honda¹ (1.Chiba University, 2.Meiji University)

*Ryohei Kameda¹, Hirose Natsumi¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Faculty of Science,Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Natsumi Hirose¹, Ryohei Kameda¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Department of Science, Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Yuki Honda¹, Hitoshi Tomaru¹, Satoko Owari¹, Ryo Matsumoto² (1.Chiba University, 2.Meiji University)

*Satoko Owari¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Minori Chikada¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Faculty of Science, Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Akihiro Hachikubo¹, Satoshi Takeya², Masaaki Konishi¹, Hirotoshi Sakagami¹, Shintaro Yamasaki¹, Hirotsugu Minami¹, Satoshi Yamashita¹, Nobuo Takahashi¹, Hitoshi Shoji¹ (1.Kitami Institute of Technology, 2.National Institute of Advanced Industrial Science and Technology (AIST))

*Yuka Oota¹, Akihiro Hachikubo¹, Satoshi Takeya² (1.Environmental and Energy Resources Research Center, Kitami Institute of Technology, 2.National Institute of Advanced Industrial Science and Technology (AIST))

*Yuka Oota¹, Akihiro Hachikubo¹, Oleg Khlystov², Gennadiy Kalmychkov³, Marc De Batist⁴, Hirotoshi Sakagami¹, Hirotsugu Minami¹, Satoshi Yamashita¹, Nobuo Takahashi¹, Hitoshi Shoji¹ (1.Kitami Institute of Technology, 2.Limnological Institute, SB RAS, 3.Vinogradov Institute of Geochemistry, SB RAS, 4.Ghent University)

*Miyahara Reina¹, Taiki Mori¹, Akihiro Kano¹, Satoko Owari², Hitoshi Tomaru², Yoshihiro Kakizaki³, Yoshitaka Kakuwa³, Ryo Matsumoto³ (1.Kyushu University Graduate School of Integrated Sciences for Global Society, 2.Chiba University, 3.Meiji University)

*Takumi Imajo¹, Junpei Hashiguchi¹, Takeshi Kobayashi¹, Chiaki Imada¹, Takeshi Terahara¹, Ryo Matsumoto² (1.Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 2.Meiji University)

*Mariko Kouduka¹, Yohey Suzuki¹ (1.Department of Earth and Planetary Science, The University of Tokyo)

*Mizuki Abe¹, Akihiro Hachikubo¹, Hirotsugu Minami¹, Hirotoshi Sakagami¹, Satoshi Yamashita¹, Nobuo Takahashi¹, Hitoshi Shoji¹, Jin K Young³, Boris Baranov⁴, Anatoly Obzhirov², Masaaki Konishi¹ (1.Kitami Institute of Technology, 2.V.I. Il'ichev Pacific Oceanological Institute FEB RAS, Russia, 3.Koria Polar Research Institute, Koria, 4.P.P. Shirshov Institute of Oceanology, RAS, Russia)