Toshi Nagata

6.4k total citations · 1 hit paper
117 papers, 4.8k citations indexed

About

Toshi Nagata is a scholar working on Ecology, Oceanography and Environmental Chemistry. According to data from OpenAlex, Toshi Nagata has authored 117 papers receiving a total of 4.8k indexed citations (citations by other indexed papers that have themselves been cited), including 89 papers in Ecology, 78 papers in Oceanography and 43 papers in Environmental Chemistry. Recurrent topics in Toshi Nagata's work include Marine and coastal ecosystems (73 papers), Microbial Community Ecology and Physiology (54 papers) and Isotope Analysis in Ecology (34 papers). Toshi Nagata is often cited by papers focused on Marine and coastal ecosystems (73 papers), Microbial Community Ecology and Physiology (54 papers) and Isotope Analysis in Ecology (34 papers). Toshi Nagata collaborates with scholars based in Japan, United States and Canada. Toshi Nagata's co-authors include Isao Koike, Hiroshi Ogawa, Hideki Fukuda, David L. Kirchman, Ichiro Tayasu, DL Kirchman, Taichi Yokokawa, Chikage Yoshimizu, Chul-Goo Kim and Toshihiro Miyajima and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Environmental Science & Technology and PLoS ONE.

In The Last Decade

Toshi Nagata

116 papers receiving 4.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Direct Determination of Carbon and Nitrogen Contents of Natural Bacterial Assemblages in Marine Environments

1998 539 citations Toshi Nagata, Isao Koike et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Toshi Nagata Japan	36	3.3k	3.0k	1.2k	624	514	117	4.8k
Graham J. C. Underwood United Kingdom	50	2.9k 0.9×	3.6k 1.2×	1.8k 1.5×	668 1.1×	478 0.9×	101	6.2k
Margaret R. Mulholland United States	44	3.2k 1.0×	4.5k 1.5×	1.2k 1.0×	849 1.4×	563 1.1×	124	5.8k
James L. Pinckney United States	46	3.0k 0.9×	3.9k 1.3×	2.0k 1.6×	1.0k 1.6×	537 1.0×	118	6.7k
Isao Koike Japan	42	3.8k 1.2×	3.8k 1.3×	1.0k 0.8×	1.1k 1.8×	418 0.8×	110	5.9k
Ilana Berman‐Frank Israel	40	2.9k 0.9×	3.5k 1.2×	1.0k 0.8×	444 0.7×	1.3k 2.5×	116	5.6k
Jutta Niggemann Germany	40	2.4k 0.7×	2.7k 0.9×	1.2k 0.9×	798 1.3×	691 1.3×	103	5.4k
Emma S. Kritzberg Sweden	29	2.2k 0.7×	2.0k 0.7×	1.5k 1.2×	465 0.7×	352 0.7×	61	4.0k
Justus E. E. van Beusekom Germany	34	1.8k 0.6×	2.1k 0.7×	778 0.6×	862 1.4×	351 0.7×	78	3.6k
Klaas R. Timmermans Netherlands	43	1.7k 0.5×	3.2k 1.1×	775 0.6×	450 0.7×	356 0.7×	111	5.1k
Bopaiah A. Biddanda United States	29	2.0k 0.6×	2.2k 0.7×	1.2k 1.0×	386 0.6×	346 0.7×	74	3.5k

Countries citing papers authored by Toshi Nagata

Since Specialization

Citations

This map shows the geographic impact of Toshi Nagata's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Toshi Nagata with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Toshi Nagata more than expected).

Fields of papers citing papers by Toshi Nagata

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Toshi Nagata. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Toshi Nagata. The network helps show where Toshi Nagata may publish in the future.

Co-authorship network of co-authors of Toshi Nagata

This figure shows the co-authorship network connecting the top 25 collaborators of Toshi Nagata. A scholar is included among the top collaborators of Toshi Nagata based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Toshi Nagata. Toshi Nagata is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Nomaki, Hidetaka, Yoshito Chikaraishi, Nanako O. Ogawa, et al.. (2025). Differential use of multiple food sources at a bathyal benthic ecosystem in the central Sagami Bay revealed by amino acid nitrogen isotopic compositions. Progress in Earth and Planetary Science. 12(1). 2 indexed citations

Fukuda, Hideki, et al.. (2024). Structuring of particle-associated bacterial communities along the extracellular polymeric substance gradient of sinking and suspended particles in an oligotrophic, subtropical region of the western North Pacific Ocean. Frontiers in Marine Science. 11. 1 indexed citations

Yamada, Yosuke, et al.. (2024). Functions of extracellular polymeric substances in partitioning suspended and sinking particles in the upper oceans of two open ocean systems. Limnology and Oceanography. 69(5). 1101–1114. 5 indexed citations

Itoh, Sachihiko, Eiji Masunaga, K. Ishikawa, et al.. (2022). Seasonal Cycle of the Confluence of the Tsugaru Warm, Oyashio, and Kuroshio Currents East of Japan. Journal of Geophysical Research Oceans. 127(8). 7 indexed citations

Nagata, Toshi, Yosuke Yamada, & Hideki Fukuda. (2021). Transparent Exopolymer Particles in Deep Oceans: Synthesis and Future Challenges. Gels. 7(3). 75–75. 16 indexed citations

Nagata, Toshi, et al.. (2021). Viral Production in Seawater Filtered Through 0.2-μm Pore-Size Filters: A Hidden Biogeochemical Cycle in a Neglected Realm. Frontiers in Microbiology. 12. 774849–774849. 1 indexed citations

Cui, Yingshun, Ryo Kaneko, Yuya Tada, et al.. (2020). Distribution of Dimethylsulfoniopropionate Degradation Genes Reflects Strong Water Current Dependencies in the Sanriku Coastal Region in Japan: From Mesocosm to Field Study. Frontiers in Microbiology. 11. 1372–1372. 7 indexed citations

Wyatt, Alex S. J., James J. Leichter, Lauren T. Toth, et al.. (2019). Heat accumulation on coral reefs mitigated by internal waves. Nature Geoscience. 13(1). 28–34. 114 indexed citations

Shiozaki, Takuhei, Toshi Nagata, Minoru Ijichi, & Ken Furuya. (2015). Nitrogen fixation and the diazotroph community in the temperate coastal region of the northwestern North Pacific. Biogeosciences. 12(15). 4751–4764. 68 indexed citations

10.

Shiozaki, Takuhei, Toshi Nagata, Minoru Ijichi, & Ken Furuya. (2015). Seasonal dynamics of nitrogen fixation and the diazotroph community in the temperate coastal region of the northwestern North Pacific. 6 indexed citations

11.

Ohkouchi, Naohiko, et al.. (2014). Influence of nitrogen substrates and substrate C:N ratios on the nitrogen isotopic composition of amino acids from the marine bacterium Vibrio harveyi. Geochimica et Cosmochimica Acta. 140. 521–530. 14 indexed citations

12.

Kojima, Keisuke, Michio Murakami, Chikage Yoshimizu, et al.. (2011). Evaluation of surface runoff and road dust as sources of nitrogen using nitrate isotopic composition. Chemosphere. 84(11). 1716–1722. 34 indexed citations

13.

Motegi, Chiaki, et al.. (2009). Viral control of bacterial growth efficiency in marine pelagic environments. Limnology and Oceanography. 54(6). 1901–1910. 67 indexed citations

14.

Takemon, Yasuhiro, et al.. (2008). Spatial distribution patterns of allochtonous and autochtonous benthic particulate organic matter on the riverbed of a mountain stream in Kyoto, Japan. Kyoto University Research Information Repository (Kyoto University). 2393–2403. 1 indexed citations

15.

Umezawa, Yu, Takahiro Hosono, Shin‐ichi Onodera, et al.. (2008). Sources of nitrate and ammonium contamination in groundwater under developing Asian megacities. The Science of The Total Environment. 404(2-3). 361–376. 113 indexed citations

16.

Ohte, Nobuhito, Toshi Nagata, Ichiro Tayasu, Ayato Kohzu, & Chikage Yoshimizu. (2008). Nitrogen and oxygen isotope measurements of nitrate to survey the sources and transformation of nitrogen loads in rivers. Terrestrial Environment Research Center (University of Tsukuba). 3 indexed citations

17.

Kim, Chul-Goo, et al.. (2006). Role of dissolved organic matter in hypolimnetic mineralization of carbon and nitrogen in a large, monomictic lake. Limnology and Oceanography. 51(1). 70–78. 51 indexed citations

18.

Aranami, Kazushi, et al.. (2002). Biogeochemical variation in dimethylsulfide, phytoplankton pigments and heterotrophic bacterial production in the subarctic North Pacific during summer. 11(2). 364. 1 indexed citations

19.

Sohrin, Yoshiki, et al.. (2000). East—west gradient in ectoenzyme activities in the subarctic Pacific: Possible regulation by zinc. Limnology and Oceanography. 45(4). 930–939. 45 indexed citations

20.

Nagata, Toshi, Louise Ladefoged Poulsen, & Daniel M. Ziegler. (1988). Estimation of lipid concentrations on thin-layer plates by densitometry of transparent copies. Analytical Biochemistry. 171(2). 248–255. 9 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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