''Alburnus escherichii'', also known as the Sakarya bleak or Caucasian bleak, is a species of

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

in the genus ''

Alburnus ''Alburnus'' is a genus of fish in the family Leuciscidae, the daces and minnows. They are known commonly as bleaks. A group of species in the genus is known as shemayas. The genus occurs in the western Palearctic realm, and the center of diversi ...

''. It is native to the

Sakarya River The Sakarya (; ; ; ) is the third longest river in Turkey. It runs through the region known in ancient times as Phrygia. It was considered one of the principal rivers of Asia Minor (Anatolia) in Greek classical antiquity, and is mentioned in th ...

drainage in

Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...

, and has been introduced into

Lake Beyşehir Lake Beyşehir (; anciently, Carallis or Karallis (), or Caralis or Karalis (Κάραλις)) is a large freshwater lake in Isparta and Konya provinces in southwestern Turkey. It is located at around and is the largest freshwater lake in Turkey. ...

and the

Manavgat River Manavgat River originates on the eastern slopes of Western Taurus Mountains in Turkey. In ancient times it was called Melas (). At an elevation of 1,350 m, the outflow of several small springs joins together to become the headwaters of the Manavgat ...

References

escherichii Endemic fauna of Turkey Fish described in 1897 Taxa named by Franz Steindachner {{Leuciscinae-stub