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Tokyo bitterling: Difference between revisions

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| image = Tanakia tanago by OpenCage.jpg
| image = Tanakia tanago by OpenCage.jpg
| status = VU | status_system = IUCN2.3
| status = VU | status_system = IUCN2.3
| status_ref =<ref>Kottelat, M. 1996. ''[http://www.iucnredlist.org/details/21383/0 Tanakia tanago]''. The IUCN Red List of Threatened Species. Version 2014.2. Downloaded on 04 October 2014</ref>
| status_ref =<ref name=iucn>{{cite journal |author=Kottelat, M. |title=''Tanakia tanago'' |journal=[[The IUCN Red List of Threatened Species]] |volume=1996 |page=e.T21383A9277794 |publisher=[[IUCN]] |date=1996 |url=http://www.iucnredlist.org/details/21383/0 |doi=10.2305/IUCN.UK.1996.RLTS.T21383A9277794.en |access-date={{SAFESUBST:CURRENTDAY}} {{SAFESUBST:CURRENTMONTHNAME}} {{SAFESUBST:CURRENTYEAR}}}}</ref>
| taxon = Tanakia tanago
| taxon = Tanakia tanago
| authority = [[Shigeho Tanaka|S. Tanaka]], 1909
| authority = [[Shigeho Tanaka|S. Tanaka]], 1909

Revision as of 02:25, 10 November 2017

Tokyo bitterling
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Genus: Tanakia
Species:
T. tanago
Binomial name
Tanakia tanago
S. Tanaka, 1909
Synonyms
  • Rhodeus tanago Tanaka, 1909
  • Pseudorhodeus tanago Tanaka, 1909

The Tokyo bitterling (Tanakia tanago) is a temperate freshwater fish of the carp family (Cyprinidae). Taxonomically, it belongs to the subfamily Acheilognathinae.

The species was first described as Rhodeus tanago by Shigeho Tanaka in 1909. It is widely known as Tanakia tanago,[2] although a 2014 study suggests it is genetically distinct from other Tanakia species, and warrants placement it the monotypic genus Pseudorhodeus.[3]

Distribution

In the wild, this fish is found only on the Kantō Plain of Japan, an area near the capital city, Tokyo. The fish was formerly abundant in small streams, but its habitat has been overrun by people and pollution.

Threats

This species was listed in the 1996 IUCN Red List as "Vulnerable", and there is a real risk that it could become extinct in the wild. It also suffers from competition from the related but more aggressive rosy bitterling. Bitterlings lay their eggs in freshwater mussel shells. The Tokyo bitterling lays its eggs in only one type of mussel shell, limiting its chances of successful breeding. To help protect the fish, it has been declared a "national monument" by the Japanese government, and this gives it special protection.[citation needed]

References

  1. ^ Kottelat, M. (1996). "Tanakia tanago". The IUCN Red List of Threatened Species. 1996. IUCN: e.T21383A9277794. doi:10.2305/IUCN.UK.1996.RLTS.T21383A9277794.en. Retrieved 13 November 2024.
  2. ^ Tanakia tanago. Catalog of Fishes. California Academy of Sciences. 27 August 2014. accessed 4 Oct 2014
  3. ^ Chang, C.-H., Li, F., Shao, K.-T., Lin, Y.-S., Morosawa, T., Kim, S., Koo, H., Kim, W., Lee, J.-S., He, S., Smith, C., Reichard, M., Miya, M., Sado, T., Uehara, K., Lavoué, S., Chen, W.-J. & Mayden, R.L. (2014). "Phylogenetic relationships of Acheilognathidae (Cypriniformes: Cyprinoidea) as revealed from evidence of both nuclear and mitochondrial gene sequence variation: Evidence for necessary taxonomic revision in the family and the identification of cryptic species". Molecular Phylogenetics and Evolution. 81: 182–194. doi:10.1016/j.ympev.2014.08.026. PMID 25238947.{{cite journal}}: CS1 maint: multiple names: authors list (link)