*Shumpei Murakami¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Kyohei Kurokawa³, Hikaru Iwamori^4,5, Kazuya Nagaishi⁶, Tsuyoshi Ishikawa⁴, Yasuhiro Kato^1,2,4,7 (1.Department of Systems innovation, School of Engineering the University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Mitsui Kushikino Mining Co.,Ltd., 4.JAMSTEC, 5.TITECH, 6.Marin Works Japan Ltd., 7.FRCER, Univ. of Tokyo )

*Yasuhiro Kato^1,2,3, Kentaro Nakamura¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Yutaro Takaya^4,1, Junichiro Ohta^3,1, Erika Tanaka¹, Kazuhide Mimura¹, Koichi Iijima^3,1, Shiki Machida^3,1, Tatsuo Nozaki^3,1,5, Jun-Ichi Kimura³, Hikaru Iwamori^3,6 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC, 4.School of Creative Science and Engineering, Waseda University, 5.Graduate School of Science, Kobe University, 6.School of Science, Tokyo Institute of Technology)

*Koichiro Fujinaga^1,2, Kazutaka Yasukawa^2,1, Tatsuo Nozaki^3,2,4, Shiki Machida^3,2, Koichi Iijima^3,2, Hitomi Tateno², Takehiro Kawasaki², Ayu Takahashi³, Hiroshi Amakawa³, Junji Torimoto³, Yusuke Fukami³, Katsuhiko Suzuki³, Kentaro Nakamura², Yasuhiro Kato^2,1,3, MR15-02 cruise members (1.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2.School of Engineering, The University of Tokyo, 3.JAMSTEC, 4.Graduate School of Science, Kobe University)

*Erika Tanaka¹, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Takashi Miyazaki³, Bogdan S Vaglarov³, Koichiro Fujinaga^2,1, Hikaru Iwamori^3,4, Yasuhiro Kato^5,1,2,3 (1.Sys. Innovation, Univ. of Tokyo, 2.Chiba Institute of Technology, 3.JAMSTEC, 4.Dept. of Earth and Planetary Sciences, TITECH, 5.FRCER, Univ. of Tokyo)

*Kazuhide Mimura¹, Katsushi Yamamoto¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Kentaro Nakamura¹, Siyang Li¹, Kazutaka Yasukawa^1,2, Kazuhide Mimura¹, Koichiro Fujinaga^2,1, Junichiro Ohta^3,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.School of Engineering, University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Koichiro Fujinaga², Yasuhiro Kato^1,2,3, Minoru Ikehara⁴ (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.JAMSTEC, 4.Center for Advanced Marine Core Research, Kochi University)

*Moei Yano¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Tatsuo Nozaki^3,1,4, Junichiro Kuroda⁵, Kiyoko Kuwahara⁶, Yasuhiro Kato^1,2,3 (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.JAMSTEC, 4.Graduate School of Science, Kobe University, 5.Atmosphere and Ocean Research Institute, The University of Tokyo, 6.Ashiya University)

*Katsushi Yamamoto¹, Kazuhide Mimura¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Moei Yano¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Tatsuo Nozaki^3,1,4, Junichiro Kuroda⁵, Kiyoko Kuwahara⁶, Yasuhiro Kato^1,2,3 (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.JAMSTEC, 4.Graduate School of Science, Kobe University, 5.Atmosphere and Ocean Research Institute, The University of Tokyo, 6.Ashiya University)

*Katsushi Yamamoto¹, Kazuhide Mimura¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)