Triplophysa

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Triplophysa
Triplophysa ferganaensis Shakhimardan stream, Fergana.jpg
Triplophysa ferganaensis
Triplophysa stoliczkai Day cleaned.png
Triplophysa stolickai
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Nemacheilidae
Genus: Triplophysa
Rendahl (de), 1933
Type species
Nemacheilus hutjertjuensis
Rendahl, 1933
Synonyms

see text

Triplophysa is a genus of fish in the family Nemacheilidae found mainly in and around the Qinghai-Tibet Plateau in China, as well as inland waters of the larger part of central Asia. [1] They can be distinguished from other genera of Nemacheilidae by marked sexual dimorphism, including the development of nuptial tubercles on breeding males. [2] Currently, the genus is a mixed assemblage of species. Some lineages have been identified and treated as subgenera ( Hedinichthys , Indotriplophysa , Labiatophysa , Qinghaichthys and Tarimichthys ), 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. [3]

Contents

Ecology

Triplophysa zhaoi holds the record for the lowest altitude for Asian fish: it is found at 50 m (160 ft) below sea level in swamps of the Lükqün oasis, in the Turpan Depression in Xinjiang. In the other end, Triplophysa stolickai holds the record altitude for Asian fish: it is found at 5,200 m (17,100 ft) above sea level in hot springs near the Longmu Lake in western Tibet. [4] Triplophysa dalaica has been used as model species to study adaptation to high-altitude hypoxia and 13 positively selected genes involved in hypoxia response have been identified. [5] Some species are blind cave-dwellers. [6] [7]

Species

These are the currently recognized species in this genus: [8]

References

  1. ↑ "Triplophysa". Global Biodiversity Information Facility . Retrieved 2023-10-07.
  2. ↑ Chen, Shijing; Sheraliev, Bakhtiyor; Shu, Lu; Peng, Zuogang (2021). "Triplophysa wulongensis, a new species of cave-dwelling loach (Teleostei, Nemacheilidae) from Chongqing, Southwest China". ZooKeys (1026): 179–192. doi: 10.3897/zookeys.1026.61570 . PMC   8018939 . PMID   33850421. S2CID   233211037 . Retrieved 26 March 2021.
  3. ↑ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Triplophysa". FishBase . June 2016 version.
  4. ↑ Kottelat, M. (2012). "Conspectus_cobitidum.pdf Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei)" (PDF). The Raffles Bulletin of Zoology. Supplement No. 26: 1–199.
  5. ↑ Wang, Y.; Yang, L.; Wu, B.; Song, Z.; He, S. (2015). "Transcriptome analysis of the plateau fish (Triplophysa dalaica): Implications for adaptation to hypoxia in fishes". Gene. 565 (2): 211–220. doi:10.1016/j.gene.2015.04.023. PMID   25869933. S2CID   5210846.
  6. ↑ Chen, X.-Y.; Yang, J.-X. (2005). "Triplophysa rosa sp. nov.: a new blind loach from China". Journal of Fish Biology. 66 (3): 599–608. doi:10.1111/j.0022-1112.2005.00622.x.
  7. ↑ Romero, A.; Zhao, Y.; Chen, X. (2009). "The Hypogean fishes of China". Environmental Biology of Fishes. 86 (1): 211–278. doi:10.1007/s10641-009-9441-3. S2CID   41778476.
  8. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Genus+Triplophysa". Catalog of Fishes . California Academy of Sciences . Retrieved 9 December 2024.
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