Masahiko FUjii, The University of Tokyo, Atmosphere and Ocean Research Institute, Otsuchi, Japan, Tsuneo Ono, Japan Fisheries Research and Education Agency, Yokohama, Japan, Yamada Makoto, Ryukoku University, Kyoto, Japan, Masabu Ooue, The University of Tsukuba, Shimoda, Japan, Takeru Ito, University of Tsukuba, Institute of Life and Environmental Sciences, Tsukuba, Japan, Jen-Han Yang, National Sun Yat-sen University, Kaohsiung, Taiwan, Yu Horiuchi, Oita Himeshima Geopark Promotion Office, Oita, Japan, Hisashi Oiwane, hikari works LLC, Mishima, Japan, Masahide Wakita, JAMSTEC, MIO, Mutsu, Japan and Shigeki Wada, Hiroshima University, Higashi-Hiroshima, Japan