*Toshiro Yamanaka¹, Kazuna Kondo¹, Mari Kobayashi¹, Takuro Noguchi², Kei Okamura³, Tomoko Yamamoto⁴, Urumu Tsunogai⁵, Jun-ichiro Ishibashi⁶ (1.Graduate School of Natural Science and Technology, Okayama University, 2.Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, 3.Center for Advanced Marine Core Research, Kochi University, 4.Faculty of Fisheries, Kagoshima University, 5.Graduate School of Environmental Studies, Nagoya University, 6.Graduate School of Science, Kyushu University)

*Ryoko Furukawa¹, Toshiro Yamanaka¹, hisashi Oiwane², Masafumi MURAYAMA³, Hitoshi CHIBA⁴ (1.Graduate School of Natural Science and Technology, Okayama University, 2.Mishimamura Village, Kagoshima Prefecture, 3.Center for Advanced Marine Core Research, Kochi University, 4.Department of Earth Sciences, Okayama University)

*Yuji Onishi¹, Toshiro Yamanaka¹, Hiromi WATANABE², Yasuhiko OHARA^2,3 (1.Okayama University, 2.JAMSTEC, 3.Hydrographic and Oceanographic Dept. of Japan)

*Kenta Suzuki¹, Masanobu Yamamoto², Tomohisa Irino², Seung-Il Nam³, Toshiro Yamanaka⁴ (1.Graduate School of Environmental Science, Hokkaido University, 2.Faculty of Environmental Earth Science, Hokkaido University, 3.Korea Polar Research Institute, 4.Graduate School of Natural Science and Technology, Okayama University)