Hucho
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Hucho is a genus of large piscivorous salmonid fish known as taimens (from Finnish Script error: No such module "Lang"., 'trout', through Template:Langx), and is closely related to Pacific trout and lenoks (all belonging to the same tribe in the subfamily Salmoninae). Native to the cold rivers and other freshwater habitats in Eurasia, they are threatened by overfishing and habitat loss.
The earliest fossil remains of this genus are known from the Late Oligocene to middle Miocene of the Vitim Plateau in Russia. Younger remains are also known from the Late Miocene of Ukraine and the Late Pleistocene of Germany.[1] Fossil specimens of a Hucho-like salmonid have been recovered from the Clarkia fossil beds and other localities from the late Neogene of western North America, suggesting they may have potentially inhabited North America too.[2]
Species
The currently recognized species in this genus are:[3]
| Image | Scientific name | Common name | Distribution |
|---|---|---|---|
| Hucho bleekeri Sh. Kimura, 1934 | Sichuan taimen | Yangtze basin in China | |
| File:Danube Salmon - Huchen (Hucho hucho).jpg | Hucho hucho (Linnaeus, 1758) | huchen, Danube salmon | endemic to the Danube basin in Europe |
| Hucho ishikawae T. Mori, 1928 | Korean taimen | North Korea and China | |
| File:Hucho taimen June 2007 Uur River.jpg | Hucho taimen (Pallas, 1773) | Siberian taimen, Siberian giant trout, and Siberian salmon | Siberia |
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In addition, the Sakhalin taimen was formerly placed in this genus, but genetics and other evidence has shown that it belongs in its own monotypic genus as Parahucho perryi.[4][5][6]
References
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- ↑ Oleinik, A.G.; and Skurikhina, L.A. (2008). Phylogenetic relationships of Sakhalin taimen Parahucho perryi inferred from PCR-RFLP analysis of mitochondrial DNA. Russian Journal of Genetics, 44:767. doi:10.1134/S102279540807003X
- ↑ Matveev, V.; Nishihara, H.; & Okada, N. (2007). Novel SINE families from salmons validate Parahucho (Salmonidae) as a distinct genus and give evidence that SINEs can incorporate LINE-related 3′-tails of other SINEs. Molecular Biology and Evolution 24(8): 1656–1666. doi: 10.1093/molbev/msm083
- ↑ Script error: No such module "Cite taxon".
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- The Eurasian Huchen, Hucho hucho: Largest Salmon of the World; By J. Holcík, K. Hensel, J. Nieslanik, L. Skácel
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