*Kozue NISHIDA1, Kei ISHIKAWA2, Akira IGUCHI3, Yasuaki TANAKA4, Mizuho SATO1, Mayuri INOUE5, Takashi NAKAMURA2, Kazuhiko SAKAI4, Atsushi SUZUKI1
(1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 2.Faculty of Science, University of Ryukyus, 3.Department of Bioresources Engineering, Okinawa National College of Technology, 4.Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, 5.Atmosphere and Ocean Research Institute, The University of Tokyo)