Shota Yamada¹, *Satoshi Takahashi¹, Yui Kouketsu¹, Shunta Ichimura¹, Kazuki Matsui¹, Tomomi Shibuya¹, Seiji Hayashi¹ (1.Department of Earth and Environmental Sciences Graduate School of Environmental Studies Nagoya University)

*Shun Muto¹, Takuma Shiohara^1,2 (1.Geological Survey of Japan, AIST, 2.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University)

*Maki Kayamori¹, Yoshiyuki Ishitani², Hidetaka Nomaki² (1.The university of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology)

*Yoshiki Hamamura¹, Yurika Ujiie² (1.Kochi University, 2.MaCRI, Kochi University)

*Kengo Kukita¹, Satoko Sekida², Kyoko Hagino³, Yurika Ujiie³ (1.Graduate School of Integrated Arts and Sciences, Kochi University, 2.Kuroshio Science Unit, Multidisciplinary Science Cluster, Kochi University, 3.Marine Core Research Institute, Kochi University)

*Tomoki Maruta¹, Haruka TAKAGI² (1.Graduate School of Frontier Sciences, The University of Tokyo, 2.Atmosphere and Ocean Research Institute, The Uiversity of Tokyo)

*Zeynab Zandvakili¹, Takuya Sagawa², Kengo Kukita¹, Issui Ikuma¹, Yoshiyuki Ishitani³, Yurika Ujiie^1,4 (1.Kochi University, 2.Institute of Science and Engineering, Faculty of Geosciences and Civil Engineering, Kanazawa University, 3.Institute for Extra-Cutting-Edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan, 4.Marine Core Research Institute, Kochi University, Nankoku, Japan)

*Yusei MIYAMOTO¹, Haruka TAKAGI¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Yurika Ujiie¹, Toshihiro Yoshimura², Yoshiyuki Ishitani³, Dana Ulanova⁴, Hirotoshi Endo⁵, Takayuki Ushikubo⁶ (1.MaCRI, Kochi University, 2.Biogeochemistry Research Center, JAMSTEC, 3.Institute for Extra-cutting-edge Science and Technology Avant-garde Research, JAMSTEC, 4.Faculty of Agriculture and Marine Science, Kochi University, 5.National Institute of Technology, Tsuruoka College, 6.Kochi Core institute, JAMSTEC)