*Yoshiyuki TANAKA¹, Takashi Nakamura², Masaya Yoshikai², Toshihiro Miyajima³, kazuo nadaoka², Atsushi Watanabe², Fernando Siringan⁴, Masahiro Nakaoka⁵, Rempei Suwa⁶, Miguel Fortes⁴ (1. Center for Liberal Arts and Science, Hachinohe Institute of Technology,, 2.Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology,, 3.Marine Biogeochemistry Group, Atmosphere and Ocean Research Institute, The University of Tokyo,, 4.Marine Science Institute, University of the Philippines, 5.Hokkaido University, 6.Forestry and Forest Products Research Institute )

*Yoshiyuki TANAKA¹, Takashi Nakamura², Masaya Yoshikai², Toshihiro Miyajima³, kazuo nadaoka², Atsushi Watanabe², Fernando Siringan⁴, Masahiro Nakaoka⁵, Rempei Suwa⁶, Miguel Fortes⁴ (1. Center for Liberal Arts and Science, Hachinohe Institute of Technology,, 2.Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology,, 3.Marine Biogeochemistry Group, Atmosphere and Ocean Research Institute, The University of Tokyo,, 4.Marine Science Institute, University of the Philippines, 5.Hokkaido University, 6.Forestry and Forest Products Research Institute )