*Masashi Tsuchiya¹, Tomo Kitahashi², Ryota Nakajima¹, Kazumasa Oguri³, Kiichiro Kawamura⁴, Akimu Nakamura⁵, Kengo Nakano⁶, Yosaku Maeda¹, Masafumi MURAYAMA⁷, Sanae Chiba⁸, Katsunori FUJIKURA¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.KANSO TECHNOS CO., LTD., 3.Hadal and Nordcee, Department of Biology, University of Southern Denmark, 4.Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 5.Nishi-Nippon Railroad Co., Ltd., 6.Fujiyama, 7.Faculty of Agriculture and Marine Science, Kochi University, 8.North Pacific Marine Science Organization)

*Ryota Nakajima¹, Hidetaka Nomaki¹, Masashi Tsuchiya¹, Daisuke Matsuoka¹, Mitsuko Hidaka¹, Daisuke Sugiyama¹, Tomo Kitahashi¹, Chunmao Zhu¹, Yugo Kanaya¹, Shinji Shimode², Dhugal Lindsay¹, Sanae Chiba¹, Katsunori Fujikura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Yokohama National University)