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MEMBER

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  2. Naohiko Ohkouchi
  3. Publications

2026.04.13

Principal Scientist

Naohiko OHKOUCHI, Ph.D

Assistant Executive Director / Institute of Earth and Material Sciences (additional post)

Biogeochemistry Research Center
Japan Agency for Marine-Earth Science and Technology, 2-15, Natsushima-Cho, Yokosuka, 237-0061, JAPAN

nohkouchi_AT_jamstec.go.jp
（"_AT_" means "＠"）

Publications List

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Research Interests

  • Factors controlling isotopic compositions of organic compounds in nature
  • Application of organic compounds to understand (paleo)environment
  • Development and application of new analytical methods for the chracterization of natural products

Education

1995
Ph.D. Department of Geology, The University of Tokyo
1992
M.Sc. Department of Geology, The University of Tokyo
1990
B.A. Department of Geography, The University of Tokyo

Professional Experience

2026-Present
Institute of Earth and Material Sciences, JAMSTEC
2025-Present
Assistant Executive Director, JAMSTEC
2019-2026
Director-General at Research Institute for Marine Resources Utilization, JAMSTEC
2020-2024
Director at Biogeochemistry Research Center, JAMSTEC
2019-2020
Director at Biogeochemistry Program, JAMSTEC
2017
Fellow at Earth-Life Science Institute, Tokyo Institute of Technology
2016-2019
Assistant Executive Director, JAMSTEC
2011-2019
Visiting Professor at Department of Environmental Chemical Engineering, Tokyo Institute of Technology
2014-2019
Director at Department of Biogeochemistry, JAMSTEC
2012-2014
Visiting Professor at Department of Earth and Planetary Science, The University of Tokyo
2009-2014
Program Director at Institute of Biogeosciences, JAMSTEC
2008-2011
Visiting Associate Professor at Department of Environmental Chemical Engineering, Tokyo Institute of Technology
2007-2012
Visiting Associate Professor at Department of Earth and Planetary Science, The University of Tokyo
2005-2009
Group Leader at Institute for Research on Earth Evolution, JAMSTEC
2002-2005
Research Scientist at Institute for Frontier Research on Earth Evolution, JAMSTEC
1999-2001
Postdoctoral Fellow at Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution
1996-2000
Assistant Professor at Institute for Low Temperature Science, Hokkaido University
1995-1996
JSPS Postdoctoral Fellow at Center for Ecological Research, Kyoto University
1992-1995
JSPS Research Fellow at Ocean Research Institute, The University of Tokyo

Awards

2025
The Most Downloaded Paper in Quaternary Science Reviews
2024
Most-cited papers in International Journal of Osteoarchaeology
2024
Japan Geoscience Union Scientific Award 2024 (Miyake Prize)
2023
Featured Article (Editors' Highlights) in Nature Communications (Astronomy and Planetary Science)
2023
Featured Article (Editors' Highlights) in Nature Communications (Astronomy and Planetary Science)
2022
Duke of Edinburgh Prize
2022
Top 100 in Ecology
2020
The Most Cited Organic Geochemistry Articles
2018
PEPS The Most Cited Paper Award 2018
2017
PEPS The Most Accessed Paper Award 2017
2013
Oceanochemistry Award
2011
Ecological Research Award
2009
Kodansha Scientific Publishing Award
2004
IFREE Award
1998
The Geochemical Society of Japan, Award for Young Scientists

Professional Activities

2024-Present
Section President, Biogeosciences, Japan Geoscience Union
2017-Present
American Chemical Society "ACS Earth and Space Chemistry" Editor
2013-Present
Executive Committee Member of Organic Geochemistry Division, Geochemical Society
2012-Present
Vice Executive Editor, Geochemical Journal
2009-Present
Japan Geoscience Union, Science Board Member
2009-Present
Japan Geoscience Union, Representative
2016
IsoEcol2016, Science Committee Member
2016
International Conference on Paleoceanography, Science Committee Member
2014-2018
National Institute of Polar Research Ice Core Research Committee
2014-2015
Center for Global Environmental Research, National Institute for Environmental Studies, Commitee Member
2014-2015
The Geochemical Society of Japan, Board Member
2013-2018
J-DESC IODP Secretary
2010-2019
Ocean Research Institute, University of Tokyo, Cooperative Research Steering Committee Member
2010-2013
Advisory Board Member, Earth and Planetary Science Letters
2010-2012
Integrated Ocean Drilling Program, Science Plan Writing Committee Member
2009-2016
Editorial Board Member, Biogeosciences
2009-2010
Guest Associate Editor, Organic Geochemistry
2009
International Meeting on Organic Geochemistry, Science Committee Member
2008-2012
Review Board Member, Scientific Drilling
2007-2010
Integrated Ocean Drilling Program, Science Planning Committee Member
2007-2010
Integrated Ocean Drilling Program, Operation Task Force Member
2004-2006
Ocean Research Institute, The University of Tokyo, Research vessel
2002-2004
Integrated Ocean Drilling Program, Domestic Committee Member
2002-2004
Integrated Ocean Drilling Program, Science Steering and Evaluation Panel Member