The Recently Extinct Plants and Animals Database


Oncorhynchus kawamurae Jordan & McGregor, 1925

Kunimasu, Black kokanee

 

 

Taxonomy & Nomenclature

Synonym/s: Oncorhynchus nerka kawamurae Jordan & McGregor, 1925

 

Conservation Status

Last Record: 1940

Rediscovered in 2010

 

Distribution

Lake Tazawa (native), Akita Prefecture & Lake Saiko (introduced), Yamanashi Prefecture, both Honshu, Japan

 

Biology

 

 

Hypodigm

 

 

Media

 

 

References

Muto, N., Nakayama, K. and Nakabo, T. (2013). Distinct genetic isolation between “Kunimasu” (Oncorhynchus kawamurae) and “Himemasu” (O. nerka) in Lake Saiko, Yamanashi Prefecture, Japan, inferred from microsatellite analysis. Ichthyological Research 60: 188-194.

Nakabo, T., Nakayama, K., Muto, N. and Miyazawa, M. (2011). Oncorhynchus kawamurae ‘‘Kunimasu,’’ a deepwater trout, discovered in Lake Saiko, 70 years after extinction in the original habitat, Lake Tazawa, Japan. Ichthyological Research 58: 180-183.

Nakabo, T., Tohkairin, A., Muto, N., Watanabe, Y., Miura, Y., Miura, H., Aoyagi, T., Kaji, N., Nayakaya, K. and Kai, Y. (2014). Growth-related morphology of “Kunimasu” (Oncorhynchus kawamurae: family Salmonidae) from Lake Saiko, Yamanashi Prefecture, Japan. Ichthyological Research 61: 115-130.

Nakayama, K., Muto, N. and Nakabo, T. (2013). Mitochondrial DNA sequence divergence between “Kunimasu” Oncorhynchus kawamurae and “Himemasu” O. nerka in Lake Saiko, Yamanashi Prefecture, Japan, and their identification using multiplex haplotype-specific PCR. Ichthyological Research 60: 277-281.

Nakayama, Kouji, Tohkairin, Akira, Yoshikawa, Akane and Nakabo, Tetsuji. (2018). Detection and morphological characteristics of “Kunimasu” (Oncorhynchus kawamurae)/”Himemasu” (O. nerka) hybrids in Lake Motosu, Yamanashi Prefecture, Japan. Ichthyological Research. https://doi.org/10.1007/s10228-018-0613-z [Abstract]

Tokui, T. (1964). Studies on the kokanee salmon (V). Transplantation of the kokanee salmon in Japan. Sci Rep Hokkaido Salmon Hatchery 18: 73-90. [relevant citation?]

Yaguchi, Takao. "Tsurikichi-Sanpei Heisei-Ban (1) Chitei-ko no Kinoshirimasu." Comic strip. In Shonen Magazine. 1-228.

https://www.asahi.com/ajw/articles/AJ201705100037.html

https://www.kingcounty.gov/elected/executive/constantine/news/release/2018/December/18-kokanee-salmon-habitat.aspx

https://extinctanimals.proboards.com/thread/16406/oncorhynchus-nerka-kawamurae

 

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