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Employee information:

Name: Tadao Kunihiro
Department: YERSEKE ECOSYSTEM STUDIES (YES)
Email: Tadao.Kunihiro(at)nioz.nl
Telephone: +31 (0)113 577 464

About:

 

Dr. Tadao Kunihiro (D.Eng)
Visiting researcher
Department: Ecosystem Studies (YES)
T. +31 (0) 113 577 464
F. +31 (0) 113 573 616
tadao.kunihiro(at)nioz.nl

Visiting address:

Korringaweg 7

4401 NT Yerseke

The Netherlands

Postal address:

Postbus 140

4400 AC Yerseke

The Netherlands

Short CV

2011 - present Visiting researcher at the Department of Ecosystem Studies, Royal Netherlands Institute of Sea Research (NIOZ-Yerseke) 
2008 – 2013 Postdoctoral researcher at Center for Marine Environmental Studies (CMES), Ehime University 
2004 – 2008 Postdoctoral researcher at Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
2001 – 2004 PhD student at Environment and Life Engineering, Toyohashi University of Technology

Research Interests

Topics: 
  • Comparing PLFAs and quinones in marine sediment
  • Interaction between bacteria and other organisms (polychaete and diatom)
  • Sediment biogeochemistry
  • Organic matter degradation
Techniques:
  • Chemotaxnomic biomarker analysis (PLFAs and quinone profiling method)
  • Quinone stable isotope probing technique
  • Stable isotopes tracers (13C)
  • Molecular approaches for bacterial community analysis

Current Research and Projects

 

Capitella-Bacteria interaction

Various biological activities of Capitella in the sediment, including burrowing into the sediment, spouting the subsurface sediment on the sediment surface, feeding the subsurface sediment and excreting fecal pellets on the sediment, may act to a create more oxidized environment in the organically enriched sediment that is suitable for increase of aerobic bacteria.

We will attempt to clarify the question whether Capitella can utilize the specific bacterial groups as a food resource using istope probing techniques.

Publications

 Please find all my publications, including downloadable PDFs, at ResearchGate. 

Highlights:

Takasu, H, T Kunihiro, and S Nakano (2013) Estimation of carbon biomass and community structure of planktonic bacteria in Lake Biwa using respiratory quinone analysis. Limnology: 14: 247-256. doi:10.1007/s10201-013-0402-3 

Kunihiro, Tadao, H Takasu, T Miyazaki, Y Uramoto, K Kinoshita, S Yodnarasri, D Hama, M Wada, K Kogure, K Ohwada, and H Tsutsumi Hiroaki (2011) Increase in Alphaproteobacteria in association with a polychaete, Capitella sp. I, in the organically enriched sediment. The ISME journal 5(11): 1818–1831. doi:10.1038/ismej.2011.57 

Kunihiro, Tadao, T Miyazaki, Y Uramoto, K Kinoshita, A Inoue, S Tamaki, D Hama, H Tsutsumi, and K Ohwada (2008) The succession of microbial community in the organic rich fish-farm sediment during bioremediation by introducing artificially mass-cultured colonies of a small polychaete, Capitella sp. I. Marine pollution bulletin 57: 68–77. doi:10.1016/j.marpolbul.2007.10.009

Kinoshita, Kyoko, S Tamaki, M Yoshioka, S Srithonguthai, T Kunihiro, D Hama, K Ohwada, and H Tsutsumi (2008) Bioremediation of organically enriched sediment deposited below fish farms with artificially mass-cultured colonies of a deposit-feeding polychaete Capitella sp. I. Fisheries Science 74(1): 77–87. doi:10.1111/j.1444-2906.2007.01498.x