*Masao IWAI¹, Keiji Horikawa² (1.Marine Core Research Institute, Kochi University, 2.Toyama University)

*Ono Iroha¹, Hitoshi Hasegawa¹, Ichinnorov Niiden², Nagayoshi Katsuta³, Masafumi MURAYAMA¹, Masao IWAI¹, Asuka Yamaguchi⁴ (1.Kochi University, 2.Mongolian Academy of Science, 3.Gifu University, 4.University of Tokyo)

*Miyamoto Kohei¹, Koji Shichi², Hitoshi Hasegawa¹, Ryosuke Imaoka¹, Nagayoshi Katsuta³, Niiden Ichinnorov⁴, Davadorj Davaasuren ⁵, Masafumi MURAYAMA¹, Masao IWAI¹, Masami Izuho⁶ (1.kochi University, 2.Forest Research and Management Organization, 3.Gifu University, 4.Mongolian Academy of Sciences, 5.National University of Mongolia, 6.Tokyo Metropolitan University)

Tsumugi Ozawa^1,6, *Masao IWAI², Ken Ikehara³, Toshiya Kanamatsu⁴, Juichiro Ashi⁵, MIho Asada³ (1.Graduate school, Kochi University, 2.Marine Core Research Institute, Kochi University, 3.AIST, 4.JAMSTEC, 5.AORI, University of Tokyo, 6.Marine Works Japan LTD.)