Japan Geoscience Union Meeting 2014

Session information

Oral

Symbol B (Biogeosciences) » B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG21_1AM1] Material cycles in tropical- subtropical coastal ecosystems

Thu. May 1, 2014 9:00 AM - 10:30 AM 213 (2F)

Convener:*Atsushi Watanabe(Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology), Kazuhiko Fujita(Department of Physics and Earth Sciences, University of the Ryukyus), Chuki Hongo(Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus), Chair:Atsushi Watanabe(Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology), Kazuhiko Fujita(Department of Physics and Earth Sciences, University of the Ryukyus), Chuki Hongo(Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus)

Coral reefs, seagrass meadows, and mangroves characterize tropical-subtropical coastal ecosystems, and possess high biological productivities and resultant active cycling of materials. Recently, these ecosystems have also been recognized as important reservoirs of so-called "blue carbon". However, degradation due to development of adjacent watersheds, reclamations of the waterfront, intensive aquaculture, and the threats of global warming and ocean acidification have been diminishing ecosystem functions rapidly. These ecosystems are in constant interaction, and an understanding of the relevant material cycles requires discussions among researchers studying these ecosystems from different points of view. Therefore, the main objectives of this session are (i) to provide opportunities for discussion among researchers working on coral reefs, seagrass meadows, and mangroves, (ii) to understand the characteristics of the ecosystem functions and their interactions, and (iii) to discuss guidelines for future research areas and for the conservation and management of these ecosystems. Specifically, the session targets studies on material cycles such as those for C, N, P, and other trace elements, freshwater and seawater cycles, and environmental records in sediments and organisms. Researchers and students from various fields such as geochemistry, ecology, oceanography, limnology, geology, and other related fields are expected to participate.

9:15 AM - 9:30 AM

*So KIM1, Atsushi SUZUKI2, Masahiro HAYASHI3, Yuzo YAMAMOTO3, Kimiaki HOTTA3, Ryosuke ISONO3, Yusuke WATANABE3, Hiroya YAMANO4, Keiichi NOMURA5, Kozue NISHIDA2, Mayuri INOUE6, Jing ZHANG1, Yukihiro NOJIRI4 (1.Toyama University, 2.Geological Survey of Japan, AIST, 3.Marine Ecology Research Institute (MERI), 4.National Institute for Environmental Studies, 5.Kushioto Marine Park, 6.Atmosphere and Ocean Research Institute, The University of Tokyo)

10:15 AM - 10:30 AM

*Naoko MORIMOTO1, Yu UMEZAWA2, Yoshiyuki TANAKA3, Genevieve L. REGINO4, Atsushi WATANABE5, Maria lourdes s.d. MCGLONE4, Toshihiro MIYAJIMA1 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Faculty of Fisheries, Nagasaki University, 3.Mutsu Institute for Oceanography, Japan Agency for Marine-Earth Science and Technology, 4.Marine Science Institute, Unversity of the Philippines, 5.Graduate School of Information Science and Engineering, Tokyo Institute of Technology)