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Taichi Yokokawa , Post Doc Researcher Netherlands Institute for Sea Research PO Box 59 1790AB Den Burg Netherlands |
+31(0)222-369380Education
2004 D.S. Graduate school of Science, Kyoto University, Japan
2001 M.S. Graduate school of Fisheries, Hokkaido University, Japan
1999 B.S. Faculty of Fisheries, Hokkaido University, Japan
Professional Experience
April 2009-Present
Postdoctoral Scientist, Royal Netherlands Institute for Sea Research (NIOZ).
April 2007-March 2009
Postdoctoral Scientist (JSPS research fellow for Research Abroad), Royal Netherlands Institute for Sea Research (NIOZ).
April 2005-March 2007
Postdoctoral Scientist, Center for Ecological Research, Kyoto University.
April 2003-March 2005
JSPS research fellow, Center for Ecological Research, Kyoto University.
April 2002-March 2003
Research assistant, Center for Ecological Research, Kyoto University.
Teaching
April 1999-March 2001
Teaching assistant, Graduate school of Fisheries, Hokkaido University.
April 2000-March 2001
Teaching assistant (Training Cruises), Graduate school of Fisheries, Hokkaido University.
Area of Interest
Prokaryotic community, Biogeochemical cycle, Carbon flux, Microbial food webs, Microbial oceanography.
Publications
Yokokawa T, De Corte D, Sintes E, Herndl GJ (in press) Spatial patterns of bacterial abundance, activity and community composition in relation to water masses in the Eastern Mediterranean Sea. Aquatic Microbial Ecology.
Yokokawa T, Nagata T (in press) Linking bacterial community structure to Carbon fluxes in Marine environments. Journal of Oceanography.
De Corte D., Yokokawa T., Varela M. M., Agogue H., Herndl G. J. (2008) Spatial distribution of Bacteria and Archaea and amoA gene copy numbers throughout the water column of the Eastern Mediterranean Sea. The ISME journal doi: 10.1038/ismej.2008.94.
Miki T., Yokokawa T., Nagata T., Yamamura N. (2008) Immigration of prokaryotes to local environments enhances remineralization efficiency of sinking particles: a metacommunity model. Marine Ecology Progress Series. 366:1-14.
Miki T., Nakazawa T., Yokokawa T., Nagata T. (2007) Functional consequences of viral impacts on bacterial communities: a food-web model analysis. Freshwater Biology. doi;10.1111/j.1365-2427.2007.01934.x.
Yokokawa T., Nagata T. (2005) Growth and Grazing mortality rates of phylogenetic groups of bacterioplankton in coastal marine environments. Applied andEnvironmental Microbiology. 71:6799-6807.
Yokokawa T., Nagata T., Cottrell M.T., Kirchman D.L. (2004) Growth rate of the major phylogenetic bacterial groups in the Delaware estuary. Limnology and Oceanography. 49:1620-1629.
Lee C.W., Kudo I., Yokokawa T., Yanada M., Maita Y. (2004) The role of microbial respiration of the occurrence of a suboxic layer in Funka Bay, Japan. In; Phang SM, Chong VC, Ho SC, Mokhar N, Ooi JLS (eds). Marine science into the New Milenium: New perspectives and Challenges. University of Malaya Research Center (UMMReC), Kuala Lumpur: 240229.
Lee C.W., Kudo I., Yokokawa T., Yanada M., Maita Y. (2002) Dyanmics of bacterial respiration and related growth efficiency, dissolved nutrients and dissolved oxygen concentration in a subarctic coastal embayment. Marine and Freshwater Research. 53:1-7.
Yanada M., Yokokawa T., Lee C.W., Tanaka H., Kudo I., Maita Y. (2000) Seasonal variation of two different heterotrophic bacterial assemblages in subarctic coastal seawater. Marine Ecology Progress Series. 204:289-292.
Meetings and Workshops
ASLO Aquatic Sciences Meeting, Nice, France, January 2009
"Prokaryotic abundance, activity and community composition in the Eastern Mediterranean Sea".Yokokawa T., De Corte D., Sintes E., Herndl G.J. (Poster)
10th Symposium on Aquatic Microbial Ecology, Faro, Portugal, September 2007
"Full-depth distributions of prokaryotic production and abundance in the Southern Ocean". Yokokawa T., Yang Y., Nagata T., Motegi C. (Talk)
Behavioral and ecological bases of biodiversity, COE symposium, Kyoto, Japan, October 2006
"Large-scale latitudinal variation of prokaryotic production throughout the water column of the central Pacific". Yokokawa T., Nagata T. (Talk)
11th International Symposium on Microbial Ecology, Vienna, Austria, August 2006
"Large-scale latitudinal variation of heterotrophic prokaryotic production throughout the water column of the central Pacific". Yokokawa T., Yang Y., Nagata T. (Poster)
Ocean Sciences Meeting, Honolulu, Hawaii, USA, February 2006
"Latitudinal variation in full depth distributions of bacterial production in the central Pacific from 67.5S to 53N: Implications for global biogeochemical models". Yokokawa T., Nagata T. (Poster)
DOBIS International Symposium-Dynamics of the Ocean Biosystem, Tokyo, Japan, November 2005
"Meridional transect of full depth distributions of bacterial production in the Southern Ocean and the central South Pacific: Patterns, anomalies and their implications for ocean carbon cycling". Yokokawa T., Nagata T. (Poster)
10th International meeting of Microbial Ecology, Cancun, Mexico, August 2004
"Growth and grazing mortality rates of phylogenetically distinct subgroups of bacterioplankton in coastal marine environment". Yokokawa T., Nagata T. (Poster)
Aquatic Sciences Meeting, Salt Lake City, Utah, USA, February 2003
"Abundance and growth rate of phylogenetically distinct subpopulations of bacterioplankton in Otsuchi Bay, Japan". Yokokawa T., Nagata T. (Poster)
Ocean Sciences Meeting, OS31C-31, Honolulu, Hawaii, USA, February 2002
"Phylotype-specific growth rate of marine bacterioplankton". Yokokawa T., Nagata T., Cottrell M.T., Kirchman D.L. (Poster)
Contributed Talks and Poster Presentations
11th Symposium on Aquatic Microbial Ecology, Piran, Slovenia, August 2009
"Dynamics of ammonia oxidizing bacteria and archaea in the coastal Arctic". Sintes E., De Corte D., Yokokawa T., Zhang Y., Calvo-Diaz A., Teira E., Herndl G.J.
11th Symposium on Aquatic Microbial Ecology, Piran, Slovenia, August 2009
"Links between viral and prokaryotic communities in the subtropical Atlantic ocean". De Corte D., Sintes E., Yokokawa T., Reinthaler T., Herndl G.J.
ASLO Aquatic Sciences Meeting, Nice, France, January 2009
"Large-scale variations in full depth distribution of prokaryotic production in the central Pcific (from 67.5ºS to 53ºN)". Nagata T., Yokokawa T.
Gordon Research Conference on Marine Microbes, Lucca, Italy, July 2008
"Viral distribution in the upper ocean". Nagata T., Yang Y., Motegi C., Yokokawa T.
IMBER-IMBIZO, Florida, USA, November 2008.
"Large-scale variations in full depth distribution of prokaryotic production in the central Pacific (from 67.5ºS to 53ºN)". Nagata T., Yokokawa T.
The 12th International Symposium on Microbial Ecology, Cairns, Australia, August 2008.
"Spatial distribution of archaeal groups and amoA gene copy numbers throughout the water column of the Eastern Mediterranean Sea". De Corte D., Yokokawa T., Herndl G.J.
The 12th International Symposium on Microbial Ecology, Cairns, Australia, August 2008.
"Free-living vs. attached prokaryotes In the coastal Arctic: effect of allochthonous particle input on crenarchaeal activity". Sintes E., Calvo-Díaz A., Usman I., Yokokawa T., Herndl G.J.
International symposium of river and lake environment, Jeju, Korea, October 2007
"Role of endo- and exohydrolytic enzymes in degradation of organic polymers in aquatic environments". Cholgoo K., Yokokawa T., Maki K., Yoshimizu C., Nishimura Y., Kong D., Nagata T.
Eur-oceans (European Network of Excellence for Oceans Ecosystems Analysis) Redfield Research Workshop, Heraklion, Greece, October 2007
"Distribution of the dissolved inorganic and organic pool concentrations and biological activity of the surface eastern Mediterranean following a Saharan dust storm event". Spyres G., Gogou A., Psarra S., Krasakopoulou E., Yokokawa T., Lagaria A., Kaiserli A., Zervakis V., Kioroglou S., Georgopoulos D., Mallios A., Ballas D., Hatzianestis .I, Herndl G. J.
The joint annual meetings of the society for mathematical biology and the Japanese society for mathematical biology, California, USA, August 2007
"Coexistence and succession in microbial metacommunity: potential linking between spatial heterogeneity in diversity and rapid shifts in community in response to environmental changes". Miki T., Yokokawa T., Nagata T., Yamamura T.
92nd Annual meeting, The Ecological Society of America, California, USA, August 2007
"Prokaryotic metacommunity concept: linking microbial diversity to biogeochemical cycling in the ocean". Miki T., Yokokawa T., Nagata T., Yamamura N.
Behavioral and ecological bases of biodiversity, COE symposium, Kyoto, Japan, October 2006
"Prokaryotic metacommunity controls the biological pump in the Ocean". Miki T., Yokokawa T., Nagata T., Yamamura N.
11th International Symposium on Microbial Ecology, Vienna, Austria, August 2006
"Large-scale patterns in full-depth distribution of virioplankton in the Pacific ocean: Coupling and uncoupling with heterotrophic prokaryotic production". Yang Y., Yokokawa T., Nagata T.
NCRC International Symposium in Environmental Biotechnology, Korea, April 2004
"Use of single-cell approaches to evaluate the dynamics and controls of bacterial communities in aquatic environments". Nagata T., Nishimura Y., Yokokawa T.
Reviewer for
Aquatic Microbial Ecology
Journal of Plankton Research
Deep Sea Research
AGU book