Japan Geoscience Union Meeting 2022

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[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 23, 2022 1:45 PM - 3:15 PM 201A (International Conference Hall, Makuhari Messe)

convener:Shin-ichi Ito(Atmosphere and Ocean Research Institute, The University of Tokyo), convener:Takafumi Hirata(Arctic Research Center, Hokkaido University), Eileen E Hofmann(Old Dominion University), Chairperson:Shin-ichi Ito(Atmosphere and Ocean Research Institute, 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 net working 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.

1:45 PM - 2:00 PM

[AOS12-12] Evaluation of retrieving chlorophyll a concentration and colored dissolved organic matter absorption from satellite ocean color remote sensing in the coastal waters of Hokkaido, Japan

*Tomonori Isada1, Stanford B Hooker2, Yukiko Taniuchi3, Koji Suzuki4 (1.Field Science Center for Northern Biosphere, Hokkaido University, 2.NASA Goddard Space Flight Center, 3.Japan Fisheries Research and Education Agency, 4.Faculty of Environmental Earth Science, Hokkaido University)

2:00 PM - 2:15 PM

[AOS12-13] INSTANTANEOUS ACCLIMATION ALLOWS COMPUTATIONALLY EFFICIENT MODELLING OF PLANKTON ECOPHYSIOLOGY AND NUTRIENT AND CARBON CYCLING

*S. Lan Smith1, Onur Kerimoglu2, Prima Anugerahanti3, Markus Pahlow4, Yoshio Masuda5, Yasuhiro Yamanaka5, Yoshikazu Sasai1 (1.Marine Ecosystem Dynamics Research Group, RIGC, JAMSTEC, 2.ICBM, University of Oldenburg, Germany, 3.University of Liverpool, UK, 4.GEOMAR, Kiel University, Germany, 5.Hokkaido University, Sapporo)

2:30 PM - 2:45 PM

[AOS12-15] Marine fish migration history reconstructed from novel radiocarbon in otolith retrieved from walleye pollock around Hokkaido, Japan

*Kozue Ando1, Yusuke Yokoyama1, Yosuke Miyairi1, Osamu Sakai2, Tomonori Hamatsu2, Ichiro Terashima3, Toshi Nagata1 (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3.Department of Biological Sciences, Graduate School of Science, The University of Tokyo)


2:45 PM - 3:00 PM

[AOS12-16] The growth patterns and optimum habitat of Larimichthys crocea throughout ontogenesis based on NEMURO.FISH

*Bin Xie1, Shin-ichi Ito2, Lingfeng Huang3, Haiqing Yu4, Chenying Guo5, Ziqin Wang2 (1.Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8564, Japan, 3.College of the Environment and Ecology, Xiamen University, Xiamen 361102, China, 4.Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China, 5.South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China)

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