Triplophysa | |
---|---|
Triplophysa ferganaensis | |
Triplophysa stolickai | |
Scientific classification | |
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]
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]
These are the currently recognized species in this genus: [8]
Acrossocheilus is a genus of ray-finned fishes in the family Cyprinidae, native to freshwater in China, Taiwan, Laos, and Vietnam. They are fairly small, no more than 30 cm (1 ft) in standard length.
Schizothorax is a genus of cyprinid fish found in southern and western China, through northern South Asia (Himalaya) and Central Asia, to Iran, with a single species, S. prophylax, in Turkey. They are primarily found in highland rivers, streams and lakes, although a few species occur in lower-lying locations, like Lake Balkhash and lakes of the Sistan Basin. Their scientific name means "cloven-breast", from Ancient Greek schízeïn (σχίζειν) 'to cleave' and thórax (θώραξ) 'breast-plate'. The western species are typically referred to as marinkas from their Russian name marinka (маринка), while the eastern species are usually called snowtrout. Although they do resemble trouts in habitus this is merely due to convergent evolution and they are by no means closely related apart from both being Teleostei: Cyprinids are in the teleost superorder Ostariophysi, while trouts are in the superorder Protacanthopterygii. Their ancestors must thus have diverged as early as the Triassic, more than 200 million years ago.
Sinocyclocheilus is a genus of freshwater fish in the family Cyprinidae that is endemic to Guangxi, Guizhou and Yunnan in China. Almost all of its species live in or around caves and most of these have adaptions typical of cavefish such as a lack of scales, lack of pigmentation and reduced eyes. Several species have an unusual hunchbacked appearance and some of the cave-dwellers have a "horn" on the back, the function of which is unclear. In contrast, the Sinocyclocheilus species that live aboveground, as well as a few found underground, show no clear cavefish adaptions. They are relatively small fish reaching up to 23 cm (9.1 in) in length. The individual species have small ranges and populations, leading to the status of most of the evaluated species as threatened. Many species populations in the genus have yet to be evaluated by the IUCN.
Oreonectes is a genus of fish in the family Nemacheilidae found in the rivers and caves of Asia. Many of these species are troglobitic.
Schistura is a genus of fish in the stone loach family Nemacheilidae native to the streams and rivers of the southern and eastern Asia. Some of these species are troglobitic.
Yunnanilus is a genus of small stone loaches that are endemic to southeastern China, especially Guangxi and Yunnan. They are found in rivers, streams and lakes; some species are restricted to caves.
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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.
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Homatula is a genus of stone loaches endemic to China.
Paranemachilus is a genus of stone loaches endemic to China.
Gymnocypris is a genus of fish in the family Cyprinidae endemic to China.
The Nemacheilidae, or stone loaches, are a family of cypriniform fishes that inhabit stream environments, mostly in Eurasia, with one genus, Afronemacheilus found in Africa. The family includes about 790 species.
Qinghaichthys is a subgenus the genus Triplophysa, stone loaches native to China. Some authorities recognise this as a valid genus but this is not recognised by Fishbase.
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Song Li is a Chancellor Professor and Department Chair of Bioengineering at University of California, Los Angeles. He received his Ph.D. in bioengineering from University of California, San Diego. Dr. Li was a Bioengineering faculty at University of California, Berkeley (2001-2015), and he moved to UCLA in 2016. His research is focused on cell engineering, mechanobiology, biomaterials, and regenerative medicine. He is well recognized bioengineer, and has been elected as a Fellow of the International Academy of Medical and Biological Engineering, Biomedical Engineering Society and American Institute for Medical and Biological Engineering.
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