1 Institute for the Advancement of Higher Education, Hokkaido University, Sapporo, Japan.
2 KIKAI Institute for Coral Reef Sciences, Kikai Town, Japan.
3 Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan.
4 Hokkaido Research Organization (Environmental and Geological Research Department, Geological Survey of Hokkaido), Sapporo, Japan.
5 High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, Taiwan, ROC.
6 Research Center for Future Earth, National Taiwan University, Taipei, Taiwan.
7 KIKAI Institute for Coral Reef Sciences, Kikai Town, Japan. [email protected].
8 Department of Natural History Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan. [email protected].
9 Research Institute for Humanity and Nature, Kyoto, Japan. [email protected].