*Maruyama Rio¹, Nanami Mizusawa¹, Ko Yasumoto¹, Ryogo Takada², Jun Yasumoto³, Mina Yasumoto⁴, Mariko Iijima⁵, Iguchi Akira⁵, Okutanius Richard Hermawan⁶, Takahiro Hosono^7,8, KE-HAN SONG⁹, Ryuichi Shinjo^9,10, Shugo Watabe¹ (1.Kitasto Univercity, 2.Center for Strategic Resarch Projects, University of Ryukyus, 3.Faculty of Agriculture, University of the Ryukyus, 4.Tropical Technology Plus, 5.National Institute of Advanced Industrial Science and Technology (AIST), 6.Earth and Environmental Science, Graduate School of Science and Technology,, 7.Faculty of Advanced Science and Technology, Kumamoto University,, 8.International Research Organization for Advanced Science and Techmology, Kumamoto University, 9.Department of Physics and Earth Sciences, University of the Ryukyus, 10.Resarch Institute for Humanity and Nature)

*Shunichi Kinoshita¹, Atsushi Suzuki², Iguchi Akira², Mariko Iijima², Yoshikazu Ohno³, Ko Yasumoto³, Hodaka Kawahata⁴ (1.Department of Geology and Paleontology, National Museum of Nature and Science, 2.National Institute of Advanced Industrial Science and Technology (AIST), 3.Kitasato University School of Marine Biosciences, 4.The Faculty of Science and Engineering, Waseda University)

*Iguchi Akira^1,2, Hiroki Kise³, Yuki Ota³, Eri Ikeuchi¹, Miyuki Nishijima¹, Hiroshi Ishida⁴, Ayumi Tsukasaki³, Masahiro Suzumura³, Atsushi Suzuki^1,2 (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.Research Laboratory on Environmentally-conscious Developments and Technologies [E-code], AIST, 3.Environmental Management Research Institute, AIST, 4.The Marine Ecology Research Institute)

*Eri Ikeuchi¹, Akira Iguchi^1,2, Hiroki Kise¹, Hiroyuki Yokooka³, Shogo Kato³, Hideki Sugishima³, Kazumasa Ikeda⁴, Ryuichi Miwa⁵, Miyuki Nishijima¹, Yuichiro Tanaka¹, Junpei Minatoya⁶, Atsushi Suzuki^1,2 (1.Geological Survey of Japan, AIST, 2.Research Laboratory on Environmentally-conscious Developments and Technologies (E-code), AIST, 3.IDEA Consultants, Inc., 4.Okamoto Glass Co., Ltd., 5.Kaiyo Engineering CO., LTD., 6.Japan Organization for Metals and Energy Security (JOGMEC))

*Nozomu Iwasaki¹, Seongwon Lee¹, Atsushi Suzuki², Shogo Kato³, Hiroyuki Yokooka³, Shota Mitsui⁴, Jumpei Minatoya⁵, Iguchi Akira², Miyuki Nishijima² (1.Faculty of Geo-Environmental Science, Rissho University, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 3. IDEA Consultants, Inc., 4.Marine Biological Research Institute of Japan Co., Ltd., 5.Japan Organization for Metals and Energy Security (JOGMEC))