Triplophysa orientalis

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Triplophysa orientalis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Nemacheilidae
Genus: Triplophysa
Species:
T. orientalis
Binomial name
Triplophysa orientalis
(Herzenstein, 1888)

Triplophysa orientalis is a species of stone loach. [2] It is a freshwater fish from the Tibetan Plateau and is endemic to China; its distribution includes the upper reaches of the Yangtze and Yellow Rivers, among others. It lives in a wide range of habitats, both lentic and lotic. The species is widespread but populations tend to be isolated and show high degree of genetic divergence. [3]

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Triplophysa is a genus of fish in the family Nemacheilidae found mainly in and around the Qinghai-Tibet Plateau in China. Currently, the genus is a mixed assemblage of species. Some lineages have been identified and treated as subgenera, but as Wikipedia follows Fishbase for fish species all but Hedinichthys have been treated as subgenera in Wikipedia, although Kottelat in his revision of the loaches did recognise them as valid. FishBase, however, includes these in Triplophysa without specifying subgenera and treats the names given by Kottelat as synonyms.

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Triplophysa bleekeri is a species of stone loach in the genus Triplophysa. It is endemic to China. It grows to 8.2 cm (3.2 in) TL. Having a wide distribution across the Qinghai-Tibet Plateau, it lives in fast-flowing rivers from 200 to 3,000m in altitude. Being an unusual species inhabiting high-altitude regions, it is an excellent model to investigate the genetic mechanisms of adaptation to the local environment. With this in mind a chromosomal-scale genome assembly was sequenced and assembled with a genome size of ∼628 Mb. This data finding that the Triplophysa genus likely diverged when the Qinghai-Tibet Plateau elevated by >4,000 m roughly 40 million years ago.

Triplophysa dalaica is a species of stone loach. It is only known from Hulun Lake in Inner Mongolia, China; it is believed to occur more widely as fish in this genus typically occur in running water.

Triplophysa microps is a species of ray-finned fish in the genus Triplophysa. It is found in shallow streams at the upper reaches of the Yellow, Yangtze, Salween, Mekong, Indus and Brahmaputra Rivers and also in alpine lakes in the Tibetan plateau.

Triplophysa siluroides is a large species of stone loach, which is endemic to the upper parts of the Yellow River basin in the Chinese provinces of Qinghai, Gansu and Sichuan.

Triplophysa stenura is a species of ray-finned fish in the genus Triplophysa. It lives in swift-flowing streams and is known from the Upper Yangtze, Upper Mekong, Upper Salween and Upper Brahmaputra river drainages in China and Vietnam. Whether this apparently widespread species really is one species needs to be studied. It grows to 13.8 cm (5.4 in) SL.

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References

  1. Devi, R. & Boguskaya, N. (2009). "Triplophysa orientalis". The IUCN Red List of Threatened Species . IUCN. 2009: e.T169645A6660583. doi:10.2305/IUCN.UK.2009-2.RLTS.T169645A6660583.en . Retrieved 13 January 2018.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2006). "Triplophysa orientalis" in FishBase . April 2006 version.
  3. Hou, F.; Zhang, X.; Zhang, X.; Yue, B.; Song, Z. (2011). "High intra-population genetic variability and inter-population differentiation in a plateau specialized fish, Triplophysa orientalis". Environmental Biology of Fishes. 93 (4): 519–530. doi:10.1007/s10641-011-9947-3. S2CID   16102331.