[M-IS26] Biogeochemistry

Thu. May 28, 2015 9:00 AM - 10:45 AM 104 (1F)

Convener:*Muneoki Yoh(Tokyo University of Agriculture and Technology), Shibata, Hideaki(Field Science Center fot Northern Biosphere, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Chair:Chisato Yoshikawa(Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology), Takuro Nunoura(Research and Development Center for Marine Biosciences, Japan Agency for Marine-Earth Science & Technology (JAMSTEC))

Biogeochemistry is an interdisciplinary study field including ecology, geochemistry, oceanography, limnology, hydrology, soil science and environmental sciences. Respective researches have tended to be conducted separately so far. This session aims to provide a common platform for biogeochemists of different disciplines, which facilitates the interactive discussion and information exchanges for further development of biogeochemical studies.

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9:00 AM - 9:15 AM

[MIS26-01] Ocean oxygen depletion due to decomposition of submarine methane hydrate

*Akitomo YAMAMOTO¹, Yasuhiro YAMANAKA², Akira OKA¹, Ayako ABE-OUCHI¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Faculty of Environmental Earth Science, Hokkaido University)

9:15 AM - 9:30 AM

[MIS26-02] Real reactions of seawater and mineral matter: coral reef ecology

*Kazuhiko ICHIKAWA¹, Masayuki HATTA² (1.Grad. School Environmental Earth Sci., Hokkaido University, Sapporo,, 2.Grad. School Humanities and Sciences, Ochanomizu University,)

9:30 AM - 9:45 AM

[MIS26-03] Phylogenetic composition of picophytoplankton in the Oyashio and Kuroshio transition regions

*Takafumi KATAOKA¹, Haruyo YAMAGUCHI¹, Akira KUWATA², Masanobu KAWACHI¹ (1.National Institute for Environmental Studies, 2.Tohoku National Fisheries Research Institute)

9:45 AM - 10:00 AM

[MIS26-04] Cyanobacterial and non-cyanobacterial nitrogen fixation play a different role on marine primary production

*Takuhei SHIOZAKI¹, Taketoshi KODAMA², Fuminori HASHIHAMA³, Koji HAMASAKI¹, Ken FURUYA² (1.The University of Tokyo, Atomosphare and Ocean Research Institute, 2.The University of Tokyo, Graduate School of Agricultural and Life Sciences, 3.Tokyo University of Marine Science and Technology, Department of Ocean Sciences)

10:00 AM - 10:15 AM

[MIS26-05] Microbial control of carbon flux in the meso- and bathypelagic zone

*Taichi YOKOKAWA¹ (1.Center for Marine Environmental Studies, Ehime University)

10:15 AM - 10:30 AM

[MIS26-06] Benthic prokaryote community and their roles on biogeochemical cycles under the oxygen minimum zone

*Hidetaka NOMAKI¹, Takuro NUNOURA¹, Miho HIRAI¹, Juliarni JULIARNI¹, Yoshihiro TAKAKI¹, Kentaro INOUE², Hisami SUGA¹ (1.JAMSTEC, 2.The University of Tokyo)