Land-originated phosphates adsorbed to coastal calcareous sediments on coral reef ecosystem in Sekisei Lagoon, Japan

Mariko Iijima1, Jun Yasumoto2, Ryogo Takada3, Takashi Nakamura4, Akira Iguchi5, Atsushi Suzuki1, Mina Hirose Yasumoto6, Nanami Mizusawa7, Shugo Watabe8 and Ko Yasumoto9, (1)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (2)University of the Ryukyus, Faculty of Agriculture, Okinawa, Japan, (3)University of the Ryukyus, Center for Strategic Research Projects, Okinawa, Japan, (4)University of the Ryukyus, Faculty of Science Department of Chemistry, Okinawa, Japan, (5)National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan, (6)Tropical Technology Plus, Uruma, Okinawa, Japan, (7)Kitasato University, School of Marine Bioscience, Sagamihara, Japan, (8)Kitasato University, School of Marine Biosciences, Sagamihara, Kanagawa, Japan, (9)Kitasato University, School of Marine Biosciences, Aomori, Japan