''Triplophysa dalaica'' is a species of

stone loach The stone loach (''Barbatula barbatula'') is a European species of fresh water ray-finned fish in the family Nemacheilidae. It is one of nineteen species in the genus '' Barbatula''. Stone loaches live amongst the gravel and stones of fast flowi ...

. It is only known from

Hulun Lake Hulun Lake (; ; ) or Dalai Lake (; ) is a large lake in the Inner Mongolia region of northern China. Description It is one of the five largest freshwater lakes in all of China, covering approximately 2,339 km2. In years with high precipita ...

Inner Mongolia Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an Autonomous regions of China, autonomous region of China. Its border includes two-thirds of the length of China's China–Mongolia border, border with the country of Mongolia. ...

, China; it is believed to occur more widely as fish in this genus typically occur in running water. ''Triplophysa dalaica'' has been used as model species to study adaptation to high-altitude hypoxia. 13 positively selected genes involved in hypoxia response have been identified. The specimen in question was captured in the

Yellow River The Yellow River, also known as Huanghe, is the second-longest river in China and the List of rivers by length, sixth-longest river system on Earth, with an estimated length of and a Drainage basin, watershed of . Beginning in the Bayan H ...

in Zoigê County, northern

Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...

References

D Freshwater fish of China Endemic fauna of China Taxa named by Karl Kessler Fish described in 1876 {{Nemacheilidae-stub