White-eye bream

Ballerus sapa

Feeding on plankton by night in swift rivers

White-eye bream is known from Europe and Asia as a freshwater fish. It occurs in estuaries and brackish water.

Class: Teleosts
Order: Minnows, Carps, and Loaches
Family: Cyprinidae
Genus: Ballerus
Maximum length: 35 cm
Body shape: fusiform
Distribution: Europe and Asia: large rivers draining to Black, Azov, Caspian and Aral Seas. Introduced or native to Northern Dvina drainage (White Sea basin) where it is presently spreading from warmer upper reaches (Vychegda system) northward. Introduced in River Volkhov (a tributary of Lake Ladoga), in Rhine in 1995 and invasive in Vistula drainage, coming from Black Sea basin through Prypet-Bug canal (connecting Dniepr and Vistula drainages).
Conservation status: LCLeast Concern

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