''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 flowin ...

. 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 dalaica'' has been used as model species to study adaptation to high-altitude

hypoxia Hypoxia means a lower than normal level of oxygen, and may refer to: Reduced or insufficient oxygen * Hypoxia (environmental), abnormally low oxygen content of the specific environment * Hypoxia (medical), abnormally low level of oxygen in the tis ...

. 13 positively selected genes involved in hypoxia response have been identified. The specimen in question was captured in the Yellow River in Zoigê County, northern Sichuan.

References

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