Toyoho Ishimura

1.7k total citations
68 papers, 1.3k citations indexed

About

Toyoho Ishimura is a scholar working on Ecology, Global and Planetary Change and Oceanography. According to data from OpenAlex, Toyoho Ishimura has authored 68 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Ecology, 27 papers in Global and Planetary Change and 20 papers in Oceanography. Recurrent topics in Toyoho Ishimura's work include Isotope Analysis in Ecology (30 papers), Marine Bivalve and Aquaculture Studies (19 papers) and Marine and fisheries research (18 papers). Toyoho Ishimura is often cited by papers focused on Isotope Analysis in Ecology (30 papers), Marine Bivalve and Aquaculture Studies (19 papers) and Marine and fisheries research (18 papers). Toyoho Ishimura collaborates with scholars based in Japan, United States and Netherlands. Toyoho Ishimura's co-authors include Urumu Tsunogai, M. Fujisawa, Atsushi Takenaka, Fumiko Nakagawa, Atsushi Suzuki, Kotaro Shirai, Hitoshi Fujioka, Tomomoto Ishikawa, Toshitaka Gamo and Hodaka Kawahata and has published in prestigious journals such as Nature Communications, PLoS ONE and Geochimica et Cosmochimica Acta.

In The Last Decade

Toyoho Ishimura

68 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Toyoho Ishimura Japan 21 611 437 294 248 170 68 1.3k
Mauro Rubino Italy 20 348 0.6× 421 1.0× 507 1.7× 65 0.3× 142 0.8× 42 1.7k
Joseph P. Smith United States 18 362 0.6× 315 0.7× 256 0.9× 204 0.8× 218 1.3× 42 1.1k
Jung‐Hyun Kim South Korea 20 425 0.7× 132 0.3× 659 2.2× 306 1.2× 272 1.6× 66 1.2k
Michael Engel Germany 24 819 1.3× 312 0.7× 569 1.9× 187 0.8× 68 0.4× 98 3.0k
Jonathan Eakins United Kingdom 20 269 0.4× 369 0.8× 317 1.1× 68 0.3× 135 0.8× 81 1.8k
Raymond W. Lee United States 29 1.1k 1.7× 384 0.9× 108 0.4× 706 2.8× 219 1.3× 66 2.6k
Jacob Silverman Israel 23 1.1k 1.8× 753 1.7× 129 0.4× 1.2k 5.0× 95 0.6× 78 2.0k
Bernard Lefauconnier Norway 19 544 0.9× 332 0.8× 1.3k 4.6× 625 2.5× 263 1.5× 27 2.0k
Mark D. Shapley United States 16 301 0.5× 113 0.3× 432 1.5× 142 0.6× 161 0.9× 51 1.2k
P.E. O’Brien Australia 27 592 1.0× 113 0.3× 1.1k 3.9× 283 1.1× 213 1.3× 79 1.6k

Countries citing papers authored by Toyoho Ishimura

Since Specialization
Citations

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

Fields of papers citing papers by Toyoho Ishimura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toyoho Ishimura

This figure shows the co-authorship network connecting the top 25 collaborators of Toyoho Ishimura. A scholar is included among the top collaborators of Toyoho Ishimura 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 Toyoho Ishimura. Toyoho Ishimura 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.
Miyairi, Yosuke, Masahiro Hayashi, Toyoho Ishimura, et al.. (2025). Carbon source estimation of Banggai cardinalfish, Pterapogon kauderni, otoliths using a novel tracer Δ14C: New implications for fish metabolism and otolith calcification. Limnology and Oceanography Letters. 10(5). 764–773. 1 indexed citations
2.
Hoogakker, Babette, Toyoho Ishimura, Lennart de Nooijer, Anthony E. Rathburn, & Gerhard Schmiedl. (2024). A review of benthic foraminiferal oxygen and carbon isotopes. Quaternary Science Reviews. 342. 108896–108896. 3 indexed citations
3.
Sakamoto, Tatsuya, et al.. (2024). Fisheries shocks provide an opportunity to reveal multiple recruitment sources of sardine in the Sea of Japan. Scientific Reports. 14(1). 21722–21722. 1 indexed citations
4.
Okada, Satoshi, Yoshiyuki Ishitani, Katsuyuki Uematsu, et al.. (2024). Composite calcite and opal test in Foraminifera (Rhizaria). Biogeosciences. 21(14). 3271–3288. 2 indexed citations
5.
Kuroyanagi, Azumi, Hodaka Kawahata, Kazuhiko Fujita, et al.. (2023). Constant shell density of hyaline large benthic foraminifers under thermal stress. Marine Micropaleontology. 181. 102232–102232. 1 indexed citations
6.
Tajika, Amane, Neil H. Landman, J. Kirk Cochran, et al.. (2023). Ammonoid extinction versus nautiloid survival: Is metabolism responsible?. Geology. 51(7). 621–625. 10 indexed citations
7.
Ishimura, Toyoho, et al.. (2022). Extracting daily isotopic records on fish otolith ( Trachurus japonicus ) by combining micro‐milling and micro‐scale isotopic analysis (MICAL‐CF‐IRMS). Rapid Communications in Mass Spectrometry. 36(20). e9366–e9366. 9 indexed citations
8.
Sakamoto, Tatsuya, Motomitsu Takahashi, Ming‐Tsung Chung, et al.. (2022). Contrasting life-history responses to climate variability in eastern and western North Pacific sardine populations. Nature Communications. 13(1). 5298–5298. 26 indexed citations
9.
Yokoyama, Naoki, Toyoho Ishimura, Oda T, et al.. (2018). Association of the PCK2 Gene Polymorphism With New-onset Glucose Intolerance in Japanese Kidney Transplant Recipients. Transplantation Proceedings. 50(4). 1045–1049. 5 indexed citations
10.
Ishimura, Toyoho, et al.. (2017). Grain‐scale stable carbon and oxygen isotopic variations of the international reference calcite, IAEA‐603. Rapid Communications in Mass Spectrometry. 31(22). 1875–1880. 15 indexed citations
11.
Ishimura, Toyoho, Akira Ijiri, Urumu Tsunogai, et al.. (2016). Mass occurrence of the enigmatic gastropod Elmira in the Late Cretaceous Sada Limestone seep deposit in southwestern Shikoku, Japa. Japan Geoscience Union. 1 indexed citations
12.
Suzuki, Yohey, H. Mukai, Toyoho Ishimura, et al.. (2016). Formation and Geological Sequestration of Uranium Nanoparticles in Deep Granitic Aquifer. Scientific Reports. 6(1). 22701–22701. 18 indexed citations
13.
Takagi, Haruka, Kazuyoshi Moriya, Toyoho Ishimura, et al.. (2015). Exploring photosymbiotic ecology of planktic foraminifers from chamber-by-chamber isotopic history of individual foraminifers. Paleobiology. 41(1). 108–121. 20 indexed citations
14.
Kinoshita, Tomoko, Yusuke Shiraishi, Nasuo Ueda, et al.. (2014). Excellent Results of Immunocomplex Capture Fluorescence Analysis-I for Cross-Match Test in Renal Transplantation. Transplantation Proceedings. 46(2). 332–335. 4 indexed citations
15.
Ishimura, Toyoho, Urumu Tsunogai, Shiro Hasegawa, et al.. (2012). Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the magnitude of isotopic disequilibrium. Biogeosciences. 9(11). 4353–4367. 30 indexed citations
16.
Ishimura, Toyoho, Urumu Tsunogai, Shiro Hasegawa, et al.. (2012). Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the vital effect. 4 indexed citations
17.
Takenaka, Atsushi, Ryoei Hara, Toyoho Ishimura, et al.. (2007). A prospective randomized comparison of diagnostic efficacy between transperineal and transrectal 12-core prostate biopsy. Prostate Cancer and Prostatic Diseases. 11(2). 134–138. 89 indexed citations
18.
Ishimura, Toyoho, Akira Ijiri, Kohei Abe, & Urumu Tsunogai. (2005). Characteristics of calcareous concretions with <i>Calyptogena</i> sp. in the Miocene Morai Formation, Hokkaido. The Journal of the Geological Society of Japan. 111(3). VII–VIII. 3 indexed citations
19.
Ishimura, Toyoho, Urumu Tsunogai, & Toshitaka Gamo. (2004). Stable carbon and oxygen isotopic determination of sub‐microgram quantities of CaCO 3 to analyze individual foraminiferal shells. Rapid Communications in Mass Spectrometry. 18(23). 2883–2888. 71 indexed citations
20.
Miyake, Hideaki, Iori Sakai, Toyoho Ishimura, Isao Hara, & Hiroshi Eto. (2003). Significance of cancer detection in the anterior lateral horn on systematic prostate biopsy: the effect on pathological findings of radical prostatectomy specimens. British Journal of Urology. 93(1). 57–59. 22 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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