UMEZAWA Yu

Professional Career

Apr 2000 - Mar 2002 : Research Assistant, Marine Biogeochemistry Laboratory, Ocean Research Institute, The University of Tokyo
Apr 2002 - Mar 2003 : Teaching Assistant, Earth and Planetary Science, Graduate School of Science, The University of Tokyo
Apr 2003 - Mar 2005 : JSPS Research Fellow , Marine Biogeochemistry Laboratory, Ocean Research Institute, The University of Tokyo
Mar 2005 - Mar 2006 : JSPS Research Fellow, Department of Botany, University of Hawaii, USA.
Jun 2006 - Jan 2008 : Senior Researcher, Urban Subsurface Project, Research Institute for Humanity and Nature, Kyoto
Feb 2008 - Mar 2012 : Assistant Professor, Faculty of Fisheries, Nagasaki University
Nov 2008 - Feb 2009 : Visiting Researcher, University of California, Santa Cruz, A. Paytan Lab.)
Jan 2012 - Mar 2012 : Visiting Researcher, National Taiwan Ocean University, IMECE, J. Chang Lab.)
Apr 2012 - Aug 2017 : Associate Professor, Faculty of Fisheries, Nagasaki University
Sep 2017 - Present : Associate Professor, Department of Environmental Science on Biosphere, Graduate School of Agriculture, Tokyo University of Agriculture and Technology

Academic Degrees

Mar 2000 : Master of Science, Department of Geography, Graduate School of Science, The University of Tokyo
Mar 2004 : Doctor of Science, Earth and Planetary Science, Graduate School of Science, The University of Tokyo

Research Interests

Marinebiogeochemistry

Publications

• Chang FH, Liu ACH, Yang JW, Saito H, Umezawa Y, Chen CC and Hsieh CH (2025) Biotic and abiotic factors shaping the metacommunity structure of free-living bacterioplankton and nanoflagellates in the Kuroshio region. Molecular Ecology, doi:10.1111/mec.70150
• Liu ACH, Chang FH, Yang JW, Saito H, Umezawa Y, Chen CC and Hsieh CH　(2025)　Small eukaryotic plankton community and alpha diversity variability in the Kuroshio region. Marine Environmental Research, 210: 107250.
• Liu, A.C.H., Chang, F.H., Yang, J.W., Saito, H., Umezawa, Y., Chen, C.C., Jan, S., Hsieh, C.H. Free-living marine bacterioplankton composition and diversity along the Kuroshio region, Deep-Sea Research Part I (Deep-Sea Res. PT I), 183, 103741, 2022.