- 2022 - 2026 Unveiling the organic matter dynamics functioning in lake hypolimnion
- 2021 - 2024 Microbial Nitrogen Pump: Bacterial semi-labile dissolved organic nitrogen as a nutrient transport pathway in aquatic systems
- 2019 - 2022 Microbial loop, dominant food chain in lake hypolimnion
- 2017 - 2020 Adaptive diversification of bruchinae seed beetles to poisonous chemical substances in leguminosae: genetic diversity of detoxifying mechanism and utilizing dry seeds.
- 2017 - 2020 Foundation of virus oceanography based on comprehensive virome analysis
- 2017 - 2019 Research on microbial loop unique to lake hypolimnion
- 2015 - 2018 Characteristic limnological processes of a huge colesd salin lake with strong basicity and high alkalinity, Lake Van in Turkey
- 2014 - 2017 Adaptation of the bruchine seed beetles to chemical substances of the leguminosae: genetic diversity in detoxication and dry seed utilization
- 2014 - 2016 Ecological studies on a lake ecosystem with unbalanced food web structure
- 2013 - 2016 Microbial loop in anoxic environments: Ecology and physiology of anaerobic heterotrophic nanoflagellates
- 2013 - 2016 Ecological and molecular phylogenetic study for neurotoxin producing cyanobacteria, Cuspodothrix issatschenkoi
- 2012 - 2016 Methanotrophic food webs and carbon recycling in a subtrophic lake
- 2012 - 2015 Biodiversity and phosphorous metabolism in watershed ecosystems: a blood vessel hypothesis
- 2011 - 2014 Quantitative and qualitative changes in dissolved organic matter and bacteria in Lake Biwa
- 2011 - 2012 Basic research for solutions on global climate change using microbial loop
- 2010 - 2012 琵琶湖底泥における有殻アメーバと関連微生物の生態
- 2010 - 2012 Establishment of a methodological framework and specific procedures for a comprehensive survey, "Hustle and Bustle of Life", of the Lake Biwa coastline by local residents
- 2009 - 2012 Material dynamics and ecological change in extra long water system, Hovosgol-Baikal-Yenisei area
- 2009 - 2011 Molecular microbial ecology of hydrogen sulfide production and degradation in organic-polluted aquatic environments
- 2008 - 2009 身近な環境における原始地球の食物網動態の解明
- 2007 - 2009 Ecological functions of conifer plantation for stream communities
- 2007 - 2009 Quality improvement of the bottom water and sediment at anoxic water in a brackish lake
- 2006 - 2009 Basic study for overall environmental rehabilitation including CDM plantation in tropical peat swamp forest
- 2006 - 2008 Material dynamics and ecological change in extra long water system, Hovsgol-Baikal-Yenisei watershed
- 2004 - 2007 Studies on the function of sandridge-centric ecosystems in Seto Inland Sea and the restoration processes of the ecosystems from the deterioration due to sand mining
- 2004 - 2006 Linkage between microbial loop and grazing food chain in benthic environments of streams
- 2002 - 2005 Fishery management and environmental preservation in marine culture in Southeast Asia
- 2002 - 2004 Transfer dynamics of microbial genes among various environments : to know destiny of genes responsible for drug resistance and pathogenicity in environments.
- 2002 - 2003 Microbial ecology and environmental monitoring in micro-habitat in streams
- 2001 - 2002 河川の超ミクロハビタットにおける微生物ループ
- 1999 - 2001 湖沼生物群集に及ぼす陸上起源物質の影響に関する研究
- 1999 - 2000 Ecological diamics of marine birnavirus in marine organisms and the environments in the Uwa Sea
- 1998 - 1999 Analysis of the Present State of Eutrophication of Lake Baikal
- 水圏生態系における微生物食物連鎖の特性
- The role of microbial food webs in aquatic ecosystems
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日本陸水学会
, 日本微生物生態学会
, 日本生態学会
, 米国陸水海洋学会
, 日本海洋学会
, The Japanese Society of Limnology
, The Japanese Society of Microbial Ecology
, The Japanese Society of Ecology
, American Society of Limnology and Oceanography
, The Japanese Society of Oceanography