Junya Hirai

806 total citations
43 papers, 553 citations indexed

About

Junya Hirai is a scholar working on Ecology, Oceanography and Molecular Biology. According to data from OpenAlex, Junya Hirai has authored 43 papers receiving a total of 553 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Ecology, 21 papers in Oceanography and 13 papers in Molecular Biology. Recurrent topics in Junya Hirai's work include Marine Biology and Ecology Research (20 papers), Environmental DNA in Biodiversity Studies (18 papers) and Microbial Community Ecology and Physiology (15 papers). Junya Hirai is often cited by papers focused on Marine Biology and Ecology Research (20 papers), Environmental DNA in Biodiversity Studies (18 papers) and Microbial Community Ecology and Physiology (15 papers). Junya Hirai collaborates with scholars based in Japan, United States and Canada. Junya Hirai's co-authors include Atsushi Tsuda, Kiyotaka Hidaka, Satoshi Nagai, Tadafumi Ichikawa, Shinji Shimode, Erica Goetze, Hiromi Kasai, Kota Hidaka, Shuntaro Nagai and Taiki Ishihara and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Junya Hirai

37 papers receiving 536 citations

Peers

Junya Hirai
Dominique A. Cowart United States
Diego Borme Italy
Miwa Takahashi Australia
Zafer Kızılkaya Türkiye
Marcos A. L. Teixeira Portugal
Lou Van Guelpen Canada
Marvin Choquet Norway
Inga Mohrbeck Germany
Angelo Poliseno Japan
Pascaline Bodilis France
Dominique A. Cowart United States
Junya Hirai
Citations per year, relative to Junya Hirai Junya Hirai (= 1×) peers Dominique A. Cowart

Countries citing papers authored by Junya Hirai

Since Specialization
Citations

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

Fields of papers citing papers by Junya Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Junya Hirai

This figure shows the co-authorship network connecting the top 25 collaborators of Junya Hirai. A scholar is included among the top collaborators of Junya Hirai 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 Junya Hirai. Junya Hirai 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
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Ushio, Masayuki, Junya Hirai, Masumi Hasegawa, et al.. (2025). Different structuring factors and distribution patterns of marine prokaryotic and eukaryotic communities in the subtropical Kuroshio region. Frontiers in Marine Science. 12.
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Hirai, Junya, et al.. (2025). Feeding habits and ecological roles of marine cladocerans in offshore zooplankton food-web in Suruga Bay, Japan. Journal of Oceanography. 82(1). 59–73. 1 indexed citations
4.
Kume, Gen, Kazuhiro Shiozaki, Junya Hirai, et al.. (2025). Analyses of gut content and isotopic composition of Anguilliformes leptocephali near southern Japan. ICES Journal of Marine Science. 82(5). 1 indexed citations
5.
Inoue, Jun, Junya Hirai, Zhen Lin, et al.. (2025). eDNA map: A Metabarcoding Web Tool for Comparing Marine Biodiversity, With Special Reference to Teleost Fish. Molecular Ecology Resources. 26(1). e70066–e70066.
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Hirai, Junya, et al.. (2024). Primary productivity impacts community structure of euphausiids in the low-latitude Indian and Pacific Oceans. Journal of Oceanography. 80(3). 163–176.
9.
Kobari, Toru, et al.. (2024). Comparison of the trophic sources and pathways of mesozooplankton and ichthyoplankton in the Kuroshio current and its neighboring waters. Progress In Oceanography. 229. 103356–103356. 3 indexed citations
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Sildever, Sirje, Hiromi Kasai, Junya Hirai, et al.. (2023). Eight years of weekly eDNA monitoring in the North‐Western Pacific. Environmental DNA. 5(6). 1202–1215. 11 indexed citations
12.
Hirai, Junya, et al.. (2023). Geographic distribution of micronektonic fish communities in the subtropical North Pacific: The effect of primary productivity and nitrogen fixation. Progress In Oceanography. 217. 103086–103086. 4 indexed citations
13.
Hunt, Brian P. V., et al.. (2023). Divergent RNA viruses infecting sea lice, major ectoparasites of fish. PLoS Pathogens. 19(6). e1011386–e1011386. 3 indexed citations
14.
Hirai, Junya, Fang Chen, Hiroshi Itoh, et al.. (2022). Molecular and morphological analyses to improve taxonomic classification ofMetridia lucens/pacificain the North Pacific. Journal of Plankton Research. 44(3). 454–463. 1 indexed citations
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Kobari, Toru, et al.. (2021). Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters. Scientific Reports. 11(1). 23265–23265. 14 indexed citations
17.
Hirai, Junya, Daisuke Sakanashi, Takeshi Kinjo, Shusaku Haranaga, & Jiro Fujita. (2020). The First Case of Community-Acquired Pneumonia Due to Capsular Genotype K2-ST86 Hypervirulent Klebsiella pneumoniae in Okinawa, Japan: A Case Report and Literature Review. SHILAP Revista de lepidopterología. 1 indexed citations
18.
Hirai, Junya, Motoshige Yasuike, Atushi Fujiwara, et al.. (2015). Effects of plankton net characteristics on metagenetic community analysis of metazoan zooplankton in a coastal marine ecosystem. Journal of Experimental Marine Biology and Ecology. 469. 36–43. 27 indexed citations
19.
Hirai, Junya, Atsushi Tsuda, & Erica Goetze. (2015). Extensive genetic diversity and endemism across the global range of the oceanic copepod Pleuromamma abdominalis. Progress In Oceanography. 138. 77–90. 31 indexed citations
20.
Hirai, Junya, Shinji Shimode, & Atsushi Tsuda. (2013). Evaluation of ITS2-28S as a molecular marker for identification of calanoid copepods in the subtropical western North Pacific. Journal of Plankton Research. 35(3). 644–656. 38 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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