[A-CG50] [JJ] Coastal Ecosystems -- 2. Coral reefs, seagrass and macroalgal beds, and mangroves

Wed. May 24, 2017 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall HALL7)

convener:Toshihiro Miyajima(Marine Biogeochemistry Group, Division of Ocean-Earth System Science, Atmosphere and Ocean Research Institute, The University of Tokyo), Yu Umezawa(Nagasaki University), Atsushi Watanabe(School of Environment and Society、Tokyo Institute of Technology)

Coastal marine ecosystems are complex open system interacting with surrounding watersheds, outer ocean, and the atmosphere, providing a wealth of various ecosystem services to human life. Simultaneously, they are also influenced strongly and often negatively by human activities. This session, together with a companion session dedicated for the water cycle and land-ocean interactions, aims to provide a platform for interdisciplinary discussion covering various aspects of frontiers in coastal ecosystem sciences. This session particularly focuses shallow-water benthic communities ranging from temperate to tropical regions, such as coral reefs, seagrass and macroalgal beds, and mangroves. All these communities are characterized by intrinsically high primary production, active material cycling, and biodiversity hot spots. However, increasing human demand for coastal marine resources and industrial development concentrating on coastal regions incur the risk of rapid degradation and diminishment. Comprehensive assessment and monitoring of ecosystem functions and development of effective means for conservation and restoration are urgently needed for such communities. This session is dedicated to organizing and promoting such research and management activities by sharing state-of-the-art science and technology among ecologists, geologists, geochemists, biogeographers, etc. Field-based and modeling studies concerning the following topics are especially welcome: material cycling and ecosystem functions; community connectivity; environmental changes such as global warming, ocean acidification, and sea-level rise; ecosystem services such as carbon sequestration, nutrient regulation, and fisheries production; broad-scale comparison; long-term ecological researches.

[ACG50-P01] Dissolved carbon dynamics in rivers and coastal areas of the Philippines: evaluation of terrestrial inputs using dissolved inorganic carbon stable isotopic composition

*Naoko Morimoto¹, Atsushi Watanabe², Yu Umezawa³, Maria Lourdes San Diego-McGlone⁴, Charissa M. Ferrera⁴, Toshihiro Miyajima¹ (1.Department of Chemical Oceanography, Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, O-okayama 2-12-1 W8-13 Meguro, Tokyo 152-8552, Japan, 3.Faculty of Fisheries, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan, 4.Marine Science Institute, University of the Philippines, Diliman, Quezon City 1101, Philippines)

[ACG50-P02] Photosynthesis, calcification, and organic carbon and nitrogen fluxes from coral reef primary producers measured with in-situ chamber experiments

*Atsushi Watanabe¹, Takashi Nakamura¹, Yoshikatsu Nakano², Kazuo Nadaoka¹ (1.School of Environment and Society, Tokyo Institute of Technology, 2. Tropical Biosphere Research Center, University of the Ryukyus)

[ACG50-P03] The high turbidity reduced mortality of coral bleaching in Kabira Bay, Ishigaki Island

*Kotaro Yashiro¹, Koichi Kinjo², Yoshiyuki Nakamura³ (1.Department of Urban Innovation, Yokohama National Univ. / Tokyo Kyuei Co., Ltd., 2.Okinawa Prefectural Institute of Health and Environment, 3.Institute of Urban Innovation, Yokohama National Univ. )

[ACG50-P04] Verification of Seagrass Beds recovery in the inner part of Otsuchi Bay, Iwate prefecture, where the distribution decreased due to the tsunami associated with the 2011 off the Pacific coast of Tohoku Earthquake

*Yoshiyuki TANAKA¹, Hideki FUKUDA², Toshihiro Miyajima³ (1.Center for Liberal Arts and Sciences, Hachinohe Institute of Technology, 2.Coastal Conservation Section, International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Marine Biogeochemistry Group, Division of Ocean-Earth System Science, Atmosphere and Ocean Research Institute, The University of Tokyo)

[ACG50-P05] Quantitative DNA assays for detecting Zostera marina DNA in coastal Sediments

*Masakazu Hori¹, Masami Hamaguchi¹, Hiromori Shimabukuro¹, Goro Yoshida¹, Toshihiro Miyajima² (1.National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research and Education Agency, 2.Division of Ocean-Earth System Science, Atmosphere and Ocean Research Institute, The University of Tokyo,)

[ACG50-P06] Application of deuterium tracer techniques to food-web analysis of seagrass meadows

*Toshihiro Miyajima¹, Masakazu Hori², Masaaki Sato², Akiko Hamaoka², Hideki Hamaoka² (1.Division of Ocean-Earth System Science, Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research and Education Agency)

Session information