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Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS21_28AM1] Biogeochemistry

Mon. Apr 28, 2014 9:00 AM - 10:45 AM 511 (5F)

Convener:*Muneoki Yoh(Tokyo University of Agriculture and Technology), Hideaki Shibata(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:Taichi Yokokawa(Center for Marine Environmental Studies, Ehime University), Hidetaka Nomaki(Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology), Yoshinori Takano(Institute of Biogeosciences, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Seiya Nagao(Institute of Nature and Environmental Technology, Kanazawa University)

Biogeochemistry is an interdisciplinary study field including ecology, geochemistry, oceanography, limnology, hydrology, soil science and environmental sciences. However, researches 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

[MIS21-01] Geochemical and molecular biological characterization of nitrogen dynamics in (hado)pelagic sediments

*Manabu NISHIZAWA¹, Miho HIRAI¹, Hidetaka NOMAKI¹, Katsunori YANAGAWA¹, Akiko MAKABE², Keisuke KOBA², Takuro NUNOURA¹ (1.JAMSTEC, 2.TUAT)

9:15 AM - 9:30 AM

[MIS21-02] Niche separation of nitrifiers and anammox in deep-sea sediments.

*Takuro NUNOURA¹, Miho HIRAI¹, Manabu NISHIZAWA¹, Juliarni -¹, Hidetaka NOMAKI¹, Hisami SUGA¹, Eiji TASUMI¹, Junichi MIYAZAKI¹, Akiko MAKABE², Keisuke KOBA², Ken TAKAI¹ (1.JAMSTEC, 2.TUAT)

9:30 AM - 9:45 AM

[MIS21-03] Ecology of viruses in deep-sea hydrothermal vents

*Yukari YOSHIDA¹ (1.JAMSTEC)

9:45 AM - 10:00 AM

[MIS21-04] Iron redox cycling and subsurface offshore transport in the eastern tropical South Pacific oxygen minimum zone

*Yoshiko KONDO¹, James W. MOFFETT² (1.National Institute of Polar Research, 2.University of Southern California)

10:00 AM - 10:15 AM

[MIS21-05] Biogeochemical cycles on the deep-sea floor revealed by isotope labeling experiments

*Hidetaka NOMAKI¹ (1.JAMSTEC)

10:15 AM - 10:30 AM

[MIS21-06] Nitrogen isotopic record of chlorophylls as a tool for understanding of nitrogen dynamics in the oceanic photic zone

*Nanako O. OGAWA¹, Chisato YOSHIKAWA¹, Hisami SUGA¹, Naohiko OHKOUCHI¹ (1.JAMSTEC)

10:30 AM - 10:45 AM

[MIS21-07] Heterotrophic bacterial production and extracellular enzymatic activity in sinking particulate matter

*Namiha YAMADA¹, Hideki FUKUDA², Hiroshi OGAWA², Hiroaki SAITO³, Masahiro SUZUMURA¹ (1.AIST, 2.AORI, The University of Tokyo, 3.Fisheries Research Agency)