[E] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-OS Ocean Sciences & Ocean Environment

[A-OS12] Marine ecosystems and biogeochemical cycles: theory, observation and modeling

Mon. May 27, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Shin-ichi Ito(Atmosphere and Ocean Research Institute, The University of Tokyo), Takafumi Hirata(Faculty of Environmental Earth Science, Hokkaido University), Enrique N Curchitser(Rutgers University New Brunswick), Eileen E Hofmann(Old Dominion University)

The ocean accounts for about 50% of global net primary production. This production is significant for carbon cycling and ecosystem functioning, and is related directly or indirectly to a variety of climatic and ecological phenomena. The responses to natural and anthropogenic environmental stressors that influence marine production and diversity can cause perturbations to marine ecosystems that alter trophic dependencies and interactions among organisms at a range of space and time scales. Quantification of the principal mechanisms driving spatio-temporal variability of marine ecosystem remains to be done, especially in terms of evaluation of uncertainty in responses. As a result, evaluating vulnerability of marine ecosystems to environmental change requires systematic and holistic approaches that integrate physics to ecology and are based in observations and modelling. In addition, expectations to deliver these science to public society is raising. This session aims to provide a venue for not only discussing recent advances in understanding marine biogeochemical cycles, ecosystems and their interactions, but also networking with a variety of people to seed new ideas in marine ecological research. Observational, modeling and conceptual studies, including technological development and operational applications, that consider linkages among biogeochemical and ecosystem processes, biodiversity, and the effects of multiple stressors from molecular to planetary scales are encouraged.

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[AOS12-P01] Impact of the nutrient transport through the Tsushima Strait on the ecosystem in the Japan Sea

*Ryota Shibano¹, Akihiko Morimoto¹, Katsumi Takayama², Tetsutaro Takikawa³, Masashi Ito⁴ (1.Center for Marine Environmental Studies, Ehime University, 2.Research Institute for Applied Mechanics, Kyushu University, 3.Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 4.Fisheries Oceanography Department, Japan Sea National Fisheries Research Institute)

[AOS12-P02] Revisiting vertical variations in stoichiometry during oceanic organic matter decomposition

*Masahito Shigemitsu¹, Michio Aoyama¹, Toshimasa Doi¹, Taichi Yokokawa¹, Akihiko Murata¹ (1.Japan Agency for Marine-Earth Science and Technology)

[AOS12-P03] Reproduction of iron-rich intermediate water in the Sea of Okhotsk by high resolution biogeochemical model.

*Hatsumi Nishikawa¹, Humio Mitsudera¹, Hiroshi Yoshinari², Takuya Nakanowatari³, Tomohiro Nakamura¹, Keisuke Uchimoto⁴, Hiroyasu Hasumi⁵ (1.Institute of Low Temperature Science, Hokkaido University, 2.National Institute for Environmental Studies, 3.Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 4.Research Institute of Innovative Technology for the Earth, 5.Atmosphere and Ocean Research Institute, University of Tokyo)

[AOS12-P04] The global oceanic iron distribution estimated by data assimilation approach

*Doi Toshimasa¹, Satoshi Osafune¹, Shuhei Masuda¹, Hajime Obata², Kazuhiro Misumi³, Jun Nishioka⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.The University of Tokyo, 3.Central Research Institute of Electric Power Industry, 4.Hokkaido University)

[AOS12-P05] A high-resolution multi-purpose particle tracking framework for coastal areas near Japan

*Yoshimasa Matsumura¹, Shota Katsura¹, Masao Kurogi², Hideyuki Nakano³, Takateru Yamagishi⁴ (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.Meteorological Research Institute, Japan Meteorological Agency , 4.Research organization for Information Science and Technology )

[AOS12-P06] Numerical study on seasonality of ocean litters collected at the Dongsha Island in the northern South China Sea

*Yi-Chia Hsin¹, Chia-Ying Ko², Ming-Shiou Jeng³ (1.Research Center for Environmental Changes, Academia Sinica, 2.Institute of Fisheries Science, National Taiwan University, 3.Biodiversity Research Center, Academia Sinica)

[AOS12-P07] A key spot and timing to monitor chlorophyll-a in the Kuroshio western boundary current

*Takafumi Hirata¹ (1.Faculty of Environmental Earth Science, Hokkaido University)

[AOS12-P08] Impacts of cyclonic eddies on phytoplankton biomass and phenology in the Kuroshio Extension region

*Eko Siswanto¹, Yoshikazu Sasai¹ (1.Japan Agency for Marine-Earth Science and Technology)

[AOS12-P09] Diagnostic estimation and uncertainties of nutrient limitation of phytoplankton growth in Michaelis-Menten functional form

*Taketo Hashioka¹, Maki Noguchi Aita¹ (1.Japan Agency for Marine-Science and Technology)

[AOS12-P10] Modeling productivity in lower trophic levels in Otsuchi Bay, northeast of Japan, using a nested OGCM with a biogeochemical component

*Takashi T Sakamoto¹, L. Shogo Urakawa², Sachihiko Itoh¹, Hiroyasu Hasumi¹, Kiyoshi Tanaka¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Meteorological Research Institute, Japan Meteorologica Agancy)

[AOS12-P11] Change in lower trophic level ecosystems to decadal scale variation of climate system in the North Pacific Ocean

*Maki Noguchi Aita¹, Kazuaki Tadokoro², Yoshiki Komuro³, Taketo Hashioka¹, Naomi Harada¹ (1.Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 2.Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3.Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology)

[AOS12-P12] Estimation of experienced environment of jack mackerel in the East China Sea

*Tomihiko Higuchi¹, Motomitsu Takahashi², Kotaro Shirai¹, Shin-ichi Ito¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Seikai National Fisheries Research Institute,FRA)

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