Jiro Koyama

3.0k total citations
205 papers, 2.5k citations indexed

About

Jiro Koyama is a scholar working on Molecular Biology, Health, Toxicology and Mutagenesis and Immunology. According to data from OpenAlex, Jiro Koyama has authored 205 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Molecular Biology, 61 papers in Health, Toxicology and Mutagenesis and 42 papers in Immunology. Recurrent topics in Jiro Koyama's work include Environmental Toxicology and Ecotoxicology (48 papers), Monoclonal and Polyclonal Antibodies Research (40 papers) and Glycosylation and Glycoproteins Research (27 papers). Jiro Koyama is often cited by papers focused on Environmental Toxicology and Ecotoxicology (48 papers), Monoclonal and Polyclonal Antibodies Research (40 papers) and Glycosylation and Glycoproteins Research (27 papers). Jiro Koyama collaborates with scholars based in Japan, Philippines and Malaysia. Jiro Koyama's co-authors include Seiichi Uno, Makoto Ishimoto, Emiko Kokushi, Koichi Tamoto, Kazuhiko Takahashi, Shigeharu Nagasawa, Shoko Imai, Kazunori Fujii, Yutaka Nagai and Tsuneo Omura and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Journal of Immunology and PLoS ONE.

In The Last Decade

Jiro Koyama

198 papers receiving 2.3k citations

Peers

Jiro Koyama
Robert W. Olafson Canada
Gary K. Ostrander United States
Jeffrey C. Wolf United States
Richard W. Smith Canada
Richard Yuen Chong Kong Hong Kong
Noomi Asker Sweden
Joanna Y. Wilson Canada
Jean‐Paul Bourdineaud France
James P. Sherry Canada
Lashitew Gedamu Canada
Robert W. Olafson Canada
Jiro Koyama
Citations per year, relative to Jiro Koyama Jiro Koyama (= 1×) peers Robert W. Olafson

Countries citing papers authored by Jiro Koyama

Since Specialization
Citations

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

Fields of papers citing papers by Jiro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jiro Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Jiro Koyama. A scholar is included among the top collaborators of Jiro Koyama 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 Jiro Koyama. Jiro Koyama 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.
Koyama, Takashi, Masatoshi Nakamoto, Kagayaki Morishima, et al.. (2019). A SNP in a Steroidogenic Enzyme Is Associated with Phenotypic Sex in Seriola Fishes. Current Biology. 29(11). 1901–1909.e8. 84 indexed citations
2.
Koyama, Jiro, et al.. (2017). BIOACCUMULATION OF SEDIMENTARY ENDOCRINE DISRUPTING CHEMICALS (EDCs) BY THE BENTHIC FISH, Pleuronectes yokohamae. Malaysian Journal of Analytical Science. 21(3). 4 indexed citations
3.
Uno, Seiichi, et al.. (2016). Toxic evaluations of sediments in Tokyo Bay, Japan, using Japanese medaka embryos. Environmental Science and Pollution Research. 24(36). 27702–27709. 5 indexed citations
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Uno, Seiichi, et al.. (2013). Bioconcentration of Waterborne Nitroarenes in Marbled Flounder Pleuronectes yokohamae. 16(2). 91–105. 4 indexed citations
6.
Anraku, Kazuhiko, et al.. (2011). Sensitivity of Crayfish Procambarus clarkii Antennules to Hydrodynamic Stimuli is Reduced during Diazinon Exposure. Zoological studies. 50(2). 145–154. 6 indexed citations
7.
Anraku, Kazuhiko, et al.. (2010). Water Quality Degradation and its Effect on Fishing Activities. Kagoshima University Repository. 47–51. 1 indexed citations
8.
Uno, Seiichi, et al.. (2010). Changings of Polycyclic Aromatic Hydrocarbons in Aquatic Organisms and Sediment at Guimaras after Oil Spill. Kagoshima University Repository. 63–66. 1 indexed citations
9.
Miki, Shizuho, Jiro Koyama, & Seiichi Uno. (2010). Optimization of pressurized liquid extraction for simultaneous analysis of polycyclic aromatic hydrocarbons and alkylated polycyclic aromatic hydrocarbons in sediments.. Fresenius environmental bulletin. 19. 1544–1551. 2 indexed citations
10.
Koyama, Jiro, et al.. (2010). Assessment of residual petroleum hydrocarbon two years after the M/T Solar 1 oil spill in Southern Guimaras, Central Philippines (JSPS-sponsored Asian CORE program (2008-2012): A new collaboration between University of the Philippines Visayas and Faculty of Fisheries, Kagoshima University). 59–62. 1 indexed citations
11.
Kakuno, Akira, Akio Shimizu, Jiro Koyama, et al.. (2009). Comparison of acute-to-chronic toxicity ratios of four chemicals between red sea bream (Pagrus major) and mummichog (Fundulus heteroclitus). 57(2). 201–209. 4 indexed citations
12.
Minami, T., et al.. (2008). Bioaccumulation of tributyltin and triphenyltin compounds through the food web in deep offshore water. 32(1). 102–107. 8 indexed citations
13.
Uno, Seiichi, Emiko Kokushi, & Jiro Koyama. (2008). 1H-NMR Metabolomic Evaluation on Pollutants Using Fish Plasma.. 11(2). 63–67. 3 indexed citations
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15.
Oshima, Yuji, Jiro Koyama, Kei Nakayama, et al.. (2004). Use of hepatic CYP1A1 activity in Japanese flounder to monitor oil dispersed from the Nakhodka spill. 7(2). 123–129. 3 indexed citations
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Koyama, Jiro. (1998). Aquatic toxicity test using marine organisms. 1(2). 15–25. 1 indexed citations
19.
Ikeda, Yayoi, et al.. (1986). Hemochemical changes in carp [Cyprinus carpio] exposed to low cadmium concentrations. Bulletin of the Japanese Society of Scientific Fisheries. 7 indexed citations
20.
Ishimoto, Makoto, et al.. (1954). BIOCHEMICAL STUDIES ON SULFATE-REDUCING BACTERIA:III. SULFATE REDUCTION BY CELL SUSPENSION. The Journal of Biochemistry. 41(5). 537–546. 14 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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