[A-CG52] [JJ] Biogeochemical linkages between the ocean and the atmosphere during phytoplankton blooms

Thu. May 25, 2017 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL7)

convener:Jun Nishioka(Hokkaido University, Institute of low temperature sciences), Koji Suzuki(Hokkaido University), Yuzo Miyazaki(Institute of Low Temperature Science, Hokkaido University), Hiroshi Tanimoto(National Institute for Environmental Studies)

Multi-scale vertical and horizontal ocean mixing processes can strongly influence the distribution of dissolved and suspended substances including macro- and micro-nutrients, and may impact on phytoplankton bloom formation. The changes in nutrient dynamics generally affect the abundance, composition and metabolic activity of marine organisms such as phytoplankton and bacteria during the bloom. Marine phytoplankton can produce volatile organic compounds (VOCs) and marine atmospheric aerosols, which strongly influence on atmospheric chemistry. Primary and secondary organic and inorganic components produced via marine phytoplankton activity can contribute to the Earth's radiative forcing, and in turn marine ecosystems including biogeochemical processes directly or indirectly. Therefore, the biogeochemical cycles have a tight linkage between the ocean and the atmosphere. In order to understand physical, chemical and biological processes relevant to phytoplankton bloom formation in the ocean, dynamics of VOCs and marine aerosols in the atmosphere, and the biogeochemical linkage between the ocean and the atmosphere, we welcome new interdisciplinary presentations and active discussions on physical, chemical and biological sciences both from ocean and atmospheric fields in this session.

[ACG52-P01] Biogeochemical linkages between the ocean and the atmosphere during phytoplankton blooms in the Oyashio region

*Jun Nishioka¹, Koji Suzuki², Yuzo Miyazaki¹, Hiroshi Tanimoto³ (1.Hokkaido University, Institute of low temperature sciences, 2.Hokkaido University, Faculty of Env. Earth Science, 3.National Institute for Env. Studies)

[ACG52-P02] Fine- and micro-scale observations in the Oyashio in winter

*Takahiro Tanaka¹, Ichiro Yasuda¹, Yasutaka Goto¹, Jun Nishioka² (1.Atmosphere and Ocean Research Institute University of Tokyo, 2.Institute of Low Temperature Science, Hokkaido University)

[ACG52-P03] Differences in the composition and photosynthetic physiology of spring phytoplankton assemblages between coastal Oyashio and Oyashio waters

*Koji Suzuki¹, Kazuhiro Yoshida¹, Hisashi Endo¹ (1.Hokkaido University)

[ACG52-P04] Nitrogen and Carbon stable isotope ratios of zooplankton in the Oyashio region of the western North Pacific

*Maki Noguchi¹, kazuaki Tadokoro², Fujio Hyodo³, Ichiro Tayasu⁴, Chikage Yoshimizu⁴, Jun Nishioka⁵, 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.Research Core for Interdisciplinary Sciences, Okayama University, 4.Research Institute for Humanity and Nature, 5.Institute of Low Temperature Science, Hokkaido University)

[ACG52-P05] Contribution for the marine ecosystem at the North East Pacific Ocean by deposition of atmospheric nitrogen compounds

*Fumikazu Taketani¹, Maki Noguchi Aita¹, Kohei Ikeda², Kazuyo Yamaji³, Kosei Sasaoka¹, Kazuhiko Matsumoto¹, Makio Honda¹, Yugo Kanaya¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute for Environmental Studies, 3.Kobe University)

Session information