[E] Oral

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 9:00 AM - 10:30 AM 302 (3F)

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), Chairperson:Shin-Ichi Ito(The University of Tokyo)

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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Introduction (9:00 AM - 9:10 AM)

9:10 AM - 9:30 AM

[AOS12-01] Projected coastal hypoxia in a coupled bio-physical model of the California Current System.

★Invited Papers

*Enrique N Curchitser¹, Raphael Dussin^1,2, Charles Stock³, Nicoals van Oostende⁴ (1.Rutgers University New Brunswick, 2.Lamont-Doherty Earth Observatory of Columbia University, 3.NOAA Geophysical Fluid Dynamics Laboratory, 4.Princeton University)

9:30 AM - 9:45 AM

[AOS12-02] Decadal salinity variation in the western North Pacific correlated with the strength of the Oyashio and the Kuroshio Extension

*Hitoshi Kaneko¹, Takeshi Okunishi², Shinya Kouketsu³, Sachihiko Itoh¹, Takashi Seto⁴, Hiroshi Kuroda⁵, Yugo Shimizu⁴ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3.Japan Agency for Marine-Earth Science and Technology, 4.National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, 5.Hokkaido National Fisheries Research Institute, Japan Fisheries Research and Education Agency)

9:45 AM - 10:00 AM

[AOS12-03] Multiscale routes to supply nutrients through the Kuroshio nutrient stream

*Takeyoshi Nagai¹, Sophie Clayton², Yusuke Uchiyama³ (1.Department of Ocean Sciences, Tokyo University of Marine Science and Technology, 2.Ocean, Earth & Atmospheric Sciences, Old Dominion University, 3.Kobe University)

10:00 AM - 10:15 AM

[AOS12-04] Seasonal variability of upper-ocean primary production around the Kuroshio analyzed using a ROMS-NPZD model

*Xu Zhang¹, Yusuke Uchiyama^1,2, Yota Suzue³, Hidekatsu Yamazaki⁴ (1.Kobe University, 2.Port and Airport Research Institute, 3.Construction Technique Institute Engineering Co., Ltd., 4.Tokyo University of Marine Science and Technology)

10:15 AM - 10:30 AM

[AOS12-05] Nutrient and light conditions at subsurface chlorophyll maximum: physical-biogeochemical observations along a mid-Pacific meridional transect

*Sachihiko Itoh¹, Hitoshi Kaneko¹, Shinya Kouketsu², Takeshi Okunishi³, Hiroshi Ogawa¹, Mitsuhide Sato⁴, Hiroaki Saito¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Agency for Marin-Earth Science and Technology, 3.Tohoku National Fisheries Research Institute, Fisheries Research Agency, 4.The Hong Kong University of Science and Technology)

Session information