This is Keisuke Onuki's personal website.
I am a postdoctoral researcher conducting evolutionary ecological studies using genomics with an interest in freshwater fishes and shrimps.
Keisuke Onuki
JSPS Postdoctoral Research Fellow
Ecological Genetics Lab., National Institute of Genetics
Email: fwfonk0238 "at" gmail.com
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My research focuses on the evolution, ecology, and natural history of aquatic organisms, especially freshwater fishes.
Current Research Topics:
Conservation genomics of freshwater fishes
Next-generation phylogeography of freshwater fishes
Invasion of non-native Neocaridina shrimps
Acheilognathus longipinnis | source of photo: ffish.asia
Pseudobagrus ichikawai|photo by K. Watanabe
Neocaridina davidi|photo by K. Onuki
4. Onuki, K.*, R. K. Ito, T. Mishina, Y. Hashiguchi, K. Ikeya, K. Uehara, M. Nishio, R. Tabata, S. Mori & K. Watanabe*. 2024. Next-generation phylogeography reveals unanticipated population history and climate and human impacts on the endangered floodplain bitterling (Acheilognathus longipinnis). BMC Ecology and Evolution, 24: 141. https://doi.org/10.1186/s12862-024-02326-y
3. Kogayu, A., Kitao, K., Miuchi, Y., & Onuki, K.* 2023. First records of Abbottina rivularis in 38 years from Kyoto, Japan. Japanese Journal of Ichthyology, 70: 205–211. [in Japanese with English abstract] https://doi.org/10.11369/jji.22-033
2. Onuki, K.* & Fuke, Y.* (equally contributed). 2022. Rediscovery of a native freshwater shrimp, Neocaridina denticulata, and expansion of an invasive species in and around Lake Biwa, Japan: Genetic and morphological approach. Conservation Genetics, 23: 967–980. https://doi.org/10.1007/s10592-022-01467-1 (Click here for PDF for online viewing only)
1. Onuki, K.* 2021. The distribution of the invasive shrimp Neocaridina davidi (Decapoda: Caridea: Atyidae) in relation to environmental parameters in a stream at Kunitachi, Tokyo, Japan. Crustacean Research, 50: 33–39. https://doi.org/10.18353/crustacea.50.0_33
14. Katayama, Y.*, Ido, K., Onuki, K., Tabata, R., Ito, R. K., and Watanabe, K. Genetic diversity of Aphyocypris chinensis before genetic disturbance inferred from whole-genome analysis. The 58th annual meeting of the Ichthyological Society of Japan. Fukuoka. Sep. 6–9th, 2024. Poster.
13. Ido, K.*, Onuki, K., Mishina, T., Tabata, R., Goto, T., Yamamoto, Y., and Watanabe, K. Genetic risks in ex-situ conserved populations: comparative whole-genome analysis of endangered freshwater fishes. The 58th annual meeting of the Ichthyological Society of Japan. Fukuoka. Sep. 7th, 2024. Presentation.
12. Ido, K.*, Onuki, K., Mishina, T., and Watanabe, K. Crisis diagnosis of endangered freshwater fishes: effects of population size reduction predicted from genomic landscapes and their interspecific comparisons. The 71st annual meeting of the Ecological Society of Japan. Online. Mar. 20th, 2024. Presentation.
11. Onuki, K.*, Kunimatsu, S., and Fuke, Y. Tracing temporal spread of non-native freshwater shrimp for invasion risk prediction by machine learning. The 71st annual meeting of the Ecological Society of Japan. Online. Mar. 16th, 2024. English presentation.
10. *Kitao, K., Miuchi, Y., Kogayu A., Onuki, K., Yamamoto, Y., Tsuruta, T., Tanaka, K., Okada, R., and Kawase, S. Rediscovery of Abbottina rivularis in the Yodo River basin. Research Association of Natural History of Fishes. Tsu, Mie. Nov. 18–19th, 2023. Presentation.
9. Onuki, K.*, Tabata, R., Mishina, T., Nishida, M., and Watanabe, K. Population history of Pseudobagrus ichikawai: insights from genome-wide SNP data in the endemic species of the Ise Bay area. The 57th annual meeting of the Ichthyological Society of Japan. Nagasaki. Sep. 1−4th, 2023. Poster. Excellent Poster Award.
8. Onuki, K.*, Nishida, M., Tabata, R., and Watanabe, K. Genetic population structure and historical demography of the endangered bagrid catfish Pseudobagrus ichikawai, inferred from genome-wide data. The 70th annual meeting of the Ecological Society of Japan. Online. Mar. 17−21st, 2023. Poster.
7. Onuki, K.* and Fuke, Y. Establishment and origin of the invasive freshwater shrimp Neocaridina davidi in the Hokuriku and Chubu regions, Japan. The 28th regular meeting of the Kinki Regional Council of the Ecological Society of Japan. Online. Dec. 10th, 2022. Presentation. Honorable Mention Award.
6. Onuki, K.*, Ito, R. K., Mishina, T., Hashiguchi, Y., Ikeya, K., Uehara, K., Nishio, M., Tabata, R., Mori, S., and Watanabe, K. Distribution history of the floodplain bitterling Acheilognathus longipinnis: a population genomic approach. The 69th annual meeting of the Ecological Society of Japan. Online. Mar. 14−19th, 2022. Poster. Excellent Poster Award.
5. Fuke, Y.*, Onuki, K., Ishii, R., and Sasazuka, R. Genetic characteristics of Neocaridina denticulata and N. davidi in Japan based on genome-wide polymorphism genotyping. The 59th annual meeting of the Crustacean Society of Japan. Online. Oct. 24th, 2021. Poster.
4. Onuki, K.* and Fuke, Y. Current state of freshwater shrimp genus Neocaridina in Lake Biwa based on genome-wide polymorphism genotyping and morphological analysis. The 59th annual meeting of the Crustacean Society of Japan. Online. Oct. 24th, 2021. Presentation. Best Presentation Award.
3. Onuki, K.*, Ito, R. K., Mishina, T., Hashiguchi, Y., Ikeya, K., Uehara, K., Nishio, M., Tabata, R., Mori, S., and Watanabe, K. Population differentiation and historical demography of the Itasenpara bitterling (Acheilognathus longipinnis) inferred from genome-wide SNP data. The 55th annual meeting of the Ichthyological Society of Japan. Online. Sep. 18−20th, 2021. Poster.
2. Onuki, K.*, Tabata, R., and Watanabe, K. Comparative historical demography of freshwater fishes in western Japan. The 54th annual meeting of the ichthyological society of Japan. Online. Oct. 31st−Nov. 1st, 2020. Poster.
1. Onuki, K.* The distribution of the invasive shrimp Neocaridina davidi (Decapoda: Caridea: Atyidae) in relation to environmental parameters in a stream at Kunitachi, Tokyo, Japan. East Japan Fish Ecology Research Association. Tateyama, Chiba. Feb. 22nd, 2020. Presentation.