Akihiko Koyama

24 papers and 328 indexed citations i.

About

Akihiko Koyama is a scholar working on Ecology, Nature and Landscape Conservation and Global and Planetary Change. According to data from OpenAlex, Akihiko Koyama has authored 24 papers receiving a total of 328 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Ecology, 10 papers in Nature and Landscape Conservation and 8 papers in Global and Planetary Change. Recurrent topics in Akihiko Koyama’s work include Fish Ecology and Management Studies (9 papers), Marine and fisheries research (5 papers) and Coastal wetland ecosystem dynamics (4 papers). Akihiko Koyama is often cited by papers focused on Fish Ecology and Management Studies (9 papers), Marine and fisheries research (5 papers) and Coastal wetland ecosystem dynamics (4 papers). Akihiko Koyama collaborates with scholars based in Japan and India. Akihiko Koyama's co-authors include Shohei Mitani, Takeshi Iwatsubo, Tomoki Kuwahara, Mayumi Masuda, Makoto Tsunoda, Hisatomo Kowa, Keiko Gengyo‐Ando, Shingo Koyama, Chang-Hong Ren and Takeo Kato and has published in prestigious journals such as Journal of Biological Chemistry, PLoS ONE and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Akihiko Koyama i

Fields of papers citing papers by Akihiko Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Akihiko Koyama

Since Specialization
Citations

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

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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2025