Tadafumi Ichikawa

1.2k total citations
32 papers, 714 citations indexed

About

Tadafumi Ichikawa is a scholar working on Oceanography, Ecology and Global and Planetary Change. According to data from OpenAlex, Tadafumi Ichikawa has authored 32 papers receiving a total of 714 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Oceanography, 21 papers in Ecology and 10 papers in Global and Planetary Change. Recurrent topics in Tadafumi Ichikawa's work include Marine and coastal ecosystems (20 papers), Isotope Analysis in Ecology (15 papers) and Marine Biology and Ecology Research (11 papers). Tadafumi Ichikawa is often cited by papers focused on Marine and coastal ecosystems (20 papers), Isotope Analysis in Ecology (15 papers) and Marine Biology and Ecology Research (11 papers). Tadafumi Ichikawa collaborates with scholars based in Japan, Malaysia and United States. Tadafumi Ichikawa's co-authors include Kiyotaka Hidaka, Ving Ching Chong, Taketoshi Kodama, Atsushi Tsuda, Junya Hirai, Kazutaka Takahashi, Ken Furuya, Hiroya Sugisaki, Katsuhisa Tanaka and Shigeho Kakehi and has published in prestigious journals such as Limnology and Oceanography, Global Biogeochemical Cycles and Ecological Modelling.

In The Last Decade

Tadafumi Ichikawa

32 papers receiving 683 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tadafumi Ichikawa Japan 17 449 373 295 90 68 32 714
Kiyotaka Hidaka Japan 13 377 0.8× 327 0.9× 221 0.7× 115 1.3× 37 0.5× 32 606
Shigeho Kakehi Japan 16 265 0.6× 383 1.0× 343 1.2× 43 0.5× 112 1.6× 61 686
Natalie J. Wallsgrove United States 14 673 1.5× 237 0.6× 246 0.8× 95 1.1× 51 0.8× 19 766
Donhyug Kang South Korea 13 249 0.6× 199 0.5× 196 0.7× 46 0.5× 32 0.5× 55 462
Dolores Cortés Spain 16 263 0.6× 375 1.0× 317 1.1× 37 0.4× 35 0.5× 30 607
Sakina‐Dorothée Ayata France 16 442 1.0× 609 1.6× 358 1.2× 74 0.8× 28 0.4× 26 870
Hiromi Kasai Japan 16 507 1.1× 784 2.1× 330 1.1× 84 0.9× 125 1.8× 50 1.0k
Agnes M. L. Karlson Sweden 16 619 1.4× 406 1.1× 326 1.1× 59 0.7× 51 0.8× 43 840
Nataliya Budaeva Russia 14 407 0.9× 535 1.4× 228 0.8× 34 0.4× 88 1.3× 41 659
Constantin Frangoulis Greece 16 295 0.7× 463 1.2× 246 0.8× 28 0.3× 35 0.5× 36 612

Countries citing papers authored by Tadafumi Ichikawa

Since Specialization
Citations

This map shows the geographic impact of Tadafumi Ichikawa'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 Tadafumi Ichikawa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tadafumi Ichikawa more than expected).

Fields of papers citing papers by Tadafumi Ichikawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Tadafumi Ichikawa. 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 Tadafumi Ichikawa. The network helps show where Tadafumi Ichikawa may publish in the future.

Co-authorship network of co-authors of Tadafumi Ichikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Tadafumi Ichikawa. A scholar is included among the top collaborators of Tadafumi Ichikawa 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 Tadafumi Ichikawa. Tadafumi Ichikawa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Kodama, Taketoshi, Takuhei Shiozaki, Hiroaki Kurogi, et al.. (2025). Carbon and Nitrogen Isoscapes of Particulate Organic Matter in the Pacific Ocean. Global Biogeochemical Cycles. 39(2). 2 indexed citations
2.
Kuroda, Hiroshi, Akinori Takasuka, Yuichi Hirota, et al.. (2017). Numerical experiments based on a coupled physical–biochemical ocean model to study the Kuroshio-induced nutrient supply on the shelf-slope region off the southwestern coast of Japan. Journal of Marine Systems. 179. 38–54. 14 indexed citations
3.
Kodama, Taketoshi, et al.. (2015). Intrusions of excess nitrate in the Kuroshio subsurface layer. Continental Shelf Research. 110. 191–200. 24 indexed citations
4.
Tsuchiya, Kenji, Victor S. Kuwahara, Koji Hamasaki, et al.. (2015). Typhoon-induced response of phytoplankton and bacteria in temperate coastal waters. Estuarine Coastal and Shelf Science. 167. 458–465. 15 indexed citations
5.
Kodama, Taketoshi, et al.. (2015). Short-term variation in the <i>Calanus sinicus</i> ammonium excretion rate during the post-capture period. Plankton and Benthos Research. 10(1). 75–79. 4 indexed citations
6.
Chiba, Sanae, et al.. (2015). Northerly shift of warm‐water copepods in the western subarctic North Pacific: Continuous Plankton Recorder samples (2001–2013). Fisheries Oceanography. 24(5). 414–429. 4 indexed citations
7.
8.
Kodama, Taketoshi, Tadafumi Ichikawa, Kiyotaka Hidaka, & Ken Furuya. (2014). A highly sensitive and large concentration range colorimetric continuous flow analysis for ammonium concentration. Journal of Oceanography. 71(1). 65–75. 39 indexed citations
9.
Itoh, Hiroshi, et al.. (2014). Seasonal and diel changes in the vertical distribution of oncaeid copepods in the epipelagic zone of the Kuroshio Extension region. Plankton and Benthos Research. 9(1). 1–14. 12 indexed citations
10.
Kodama, Taketoshi, Yugo Shimizu, Tadafumi Ichikawa, et al.. (2014). Seasonal and spatial contrast in the surface layer nutrient content around the Kuroshio along 138°E, observed between 2002 and 2013. Journal of Oceanography. 70(6). 489–503. 30 indexed citations
11.
Hirai, Junya, et al.. (2014). A metagenetic approach for revealing community structure of marine planktonic copepods. Molecular Ecology Resources. 15(1). 68–80. 79 indexed citations
12.
Takahashi, Kazutaka, Tadafumi Ichikawa, Hiroaki Saito, et al.. (2013). Sapphirinid copepods as predators of doliolids: Their role in doliolid mortality and sinking flux. Limnology and Oceanography. 58(6). 1972–1984. 33 indexed citations
13.
Okunishi, Takeshi, Shin‐ichi Ito, Daisuke Ambe, et al.. (2011). A modeling approach to evaluate growth and movement for recruitment success of Japanese sardine (Sardinops melanostictus) in the western Pacific. Fisheries Oceanography. 21(1). 44–57. 46 indexed citations
14.
Tanaka, Katsuhisa, Yukio Hanamura, Ving Ching Chong, et al.. (2011). Stable isotope analysis reveals ontogenetic migration and the importance of a large mangrove estuary as a feeding ground for juvenile John’s snapper Lutjanus johnii. Fisheries Science. 77(5). 809–816. 23 indexed citations
15.
Lindsay, Dhugal J., Francesc Pagès, Jordi Corbera, et al.. (2008). The anthomedusan fauna of the Japan Trench: preliminary results fromin situsurveys with manned and unmanned vehicles. Journal of the Marine Biological Association of the United Kingdom. 88(8). 1519–1539. 17 indexed citations
16.
Ichikawa, Tadafumi, et al.. (2004). Seasonal Changes of Primary Productivity in Tosa Bay, Japan. Oceanography in Japan. 13(3). 259–269. 17 indexed citations
17.
Nakata, Kaoru, et al.. (2004). Seasonal changes in the reproduction of three oncaeid copepods in the surface layer of the Kuroshio Extension. Fisheries Oceanography. 13(s1). 21–33. 16 indexed citations
18.
Chong, Ving Ching, et al.. (2001). Contribution of mangrove detritus to juvenile prawn nutrition: a dual stable isotope study in a Malaysian mangrove forest. Marine Biology. 138(1). 77–86. 105 indexed citations
19.
Ichikawa, Tadafumi, et al.. (1999). Preliminary Report on Stable Isotope Ratio Analysis for Samples from Matang Mangrove Brackish Water Ecosystems. Japan Agricultural Research Quarterly JARQ. 33(3). 215–221. 16 indexed citations
20.
Hanazato, Takayuki, Hidetake Hayashi, Tadafumi Ichikawa, & Yasunori WATANABE. (1989). Dynamics of zooplankton community in enclosures of different types in a shallow eutrophic lake.. Japanese Journal of Limnology (Rikusuigaku Zasshi). 50(1). 25–37. 5 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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