| Determination of aquatic food‐web structure based on compound‐specific nitrogen isotopic composition of amino acids Y Chikaraishi, NO Ogawa, Y Kashiyama, Y Takano, H Suga, A Tomitani, ... Limnology and Oceanography: methods 7 (11), 740-750, 2009 | 835 | 2009 |
| Extraterrestrial ribose and other sugars in primitive meteorites Y Furukawa, Y Chikaraishi, N Ohkouchi, NO Ogawa, DP Glavin, ... Proceedings of the National Academy of Sciences 116 (49), 24440-24445, 2019 | 405 | 2019 |
| Metabolic control of nitrogen isotope composition of amino acids in macroalgae and gastropods: implications for aquatic food web studies Y Chikaraishi, Y Kashiyama, NO Ogawa, H Kitazato, N Ohkouchi Marine Ecology Progress Series 342, 85-90, 2007 | 356 | 2007 |
| Advances in the application of amino acid nitrogen isotopic analysis in ecological and biogeochemical studies N Ohkouchi, Y Chikaraishi, HG Close, B Fry, T Larsen, DJ Madigan, ... Organic Geochemistry 113, 150-174, 2017 | 346 | 2017 |
| Contemporaneous massive subaerial volcanism and late cretaceous Oceanic Anoxic Event 2 J Kuroda, NO Ogawa, M Tanimizu, MF Coffin, H Tokuyama, H Kitazato, ... Earth and Planetary Science Letters 256 (1-2), 211-223, 2007 | 266 | 2007 |
| High‐resolution food webs based on nitrogen isotopic composition of amino acids Y Chikaraishi, SA Steffan, NO Ogawa, NF Ishikawa, Y Sasaki, M Tsuchiya, ... Ecology and evolution 4 (12), 2423-2449, 2014 | 265 | 2014 |
| Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu H Naraoka, Y Takano, JP Dworkin, Y Oba, K Hamase, A Furusho, ... Science 379 (6634), eabn9033, 2023 | 219 | 2023 |
| Geographical origin of polished rice based on multiple element and stable isotope analyses Y Suzuki, Y Chikaraishi, NO Ogawa, N Ohkouchi, T Korenaga Food Chemistry 109 (2), 470-475, 2008 | 192 | 2008 |
| Further evaluation of the trophic level estimation based on nitrogen isotopic composition of amino acids Y Chikaraishi, NO Ogawa, N Ohkouchi Earth, life, and isotopes 415, 37-51, 2010 | 179 | 2010 |
| New organic reference materials for carbon-and nitrogen-stable isotope ratio measurements provided by Center for Ecological Research, Kyoto University, and Institute of … I Tayasu, R Hirasawa, NO Ogawa, N Ohkouchi, K Yamada Limnology 12 (3), 261-266, 2011 | 178 | 2011 |
| 15N/14N ratios of amino acids as a tool for studying terrestrial food webs: a case study of terrestrial insects (bees, wasps, and hornets) Y Chikaraishi, NO Ogawa, H Doi, N Ohkouchi Ecological research 26 (4), 835-844, 2011 | 162 | 2011 |
| Characterization and production and consumption processes of N2O emitted from temperate agricultural soils determined via isotopomer ratio analysis S Toyoda, M Yano, S Nishimura, H Akiyama, A Hayakawa, K Koba, ... Global Biogeochemical Cycles 25 (2), 2011 | 160 | 2011 |
| A low trophic position of Japanese eel larvae indicates feeding on marine snow MJ Miller, Y Chikaraishi, NO Ogawa, Y Yamada, K Tsukamoto, ... Biology letters 9 (1), 20120826, 2013 | 151 | 2013 |
| Ultra-sensitive elemental analyzer/isotope ratio mass spectrometer for stable nitrogen and carbon isotope analyses NO Ogawa, T Nagata, H Kitazato, N Ohkouchi Earth, life, and isotopes 339353, 2010 | 144 | 2010 |
| Different ingestion patterns of 13C-labeled bacteria and algae by deep-sea benthic foraminifera H Nomaki, P Heinz, T Nakatsuka, M Shimanaga, N Ohkouchi, NO Ogawa, ... Marine Ecology Progress Series 310, 95-108, 2006 | 141 | 2006 |
| Sedimentary membrane lipids recycled by deep-sea benthic archaea Y Takano, Y Chikaraishi, NO Ogawa, H Nomaki, Y Morono, F Inagaki, ... Nature Geoscience 3 (12), 858-861, 2010 | 138 | 2010 |
| Isolation and desalting with cation‐exchange chromatography for compound‐specific nitrogen isotope analysis of amino acids: application to biogeochemical samples Y Takano, Y Kashiyama, NO Ogawa, Y Chikaraishi, N Ohkouchi Rapid Communications in Mass Spectrometry 24 (16), 2317-2323, 2010 | 127 | 2010 |
| Biochemical and physiological bases for the use of carbon and nitrogen isotopes in environmental and ecological studies N Ohkouchi, NO Ogawa, Y Chikaraishi, H Tanaka, E Wada Progress in Earth and Planetary Science 2 (1), 1, 2015 | 120 | 2015 |
| Benthic foraminifera as trophic links between phytodetritus and benthic metazoans: carbon and nitrogen isotopic evidence H Nomaki, NO Ogawa, N Ohkouchi, H Suga, T Toyofuku, M Shimanaga, ... Marine Ecology Progress Series 357, 153-164, 2008 | 114 | 2008 |
| Fluctuations of nitrogen isotope ratio of gobiid fish (Isaza) specimens and sediments in Lake Biwa, Japan, during the 20th century NO Ogawa, T Koitabashi, H Oda, T Nakamura, N Ohkouchi, E Wada Limnology and Oceanography 46 (5), 1228-1236, 2001 | 113 | 2001 |
Naohiko OhkouchiDirector of Biogeogeochemistry Department, JAMSTECVerified email at jamstec.go.jp
