NATIONAL ACADEMY OF SCIENCES OF UKRAINE
State Museum of Natural History
Biodiversity Data Centre

Ballerus sapa (Pallas, 1814)

Synonym
  • Cyprinus sapa Pallas, 1814
Vernacular Name
White-eye Bream
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Conservation status
Reg
Value of species
Remarks
Detail
Large rivers draining to Black, Azov, Caspian and Aral Seas. Introduced or native to Northern Dvina drainage (White Sea basin) where it is quickly spreading from warmer upper reaches (Vychegda system) northward. Introduced in River Volkhov (a Lake Ladoga tributary), in Rhine in 1995 and invasive in Vistula drainage, coming from Black Sea basin through Prypet-Bug canal (connecting Dniepr and Vistula drainages). Habitat: Large lowland rivers and estuaries. Spawns in fast-flowing water on gravel bottom or submerged vegetation. Biology: Poorly known. Thought to be a rheophilic, nocturnal species. Spawns for the first time at 3-4 years. Spawns in April-May when temperature rises above 8°C. Spawns in large aggregations. Semi-anadromous populations forage in large brackish-water habitats in estuaries around Black Sea. Spawning migration of semi-anadromous individuals start in November (Kura). Feeds on benthic invertebrates.
Book reference
  • Мовчан Ю.В. Сучасний склад іхтіофауни басейну Верхнього Дніпра (фауністичний огляд) // Збірник праць Зоологічного музею. – 2012. - №43. – С.35-50.
  • Соколов Н.Ю. Каталог колекції круглоротих і риб Державного природознавчого музею НАН України // Наукові записки Державного природознавчого музею. – Львів, 2004. – Т.19. – С. 15-28.
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Taxonomic branch

Biota
Eukaryota
Animalia
Eumetazoa
Chordata
Gnathostomata
Actinopterygii
Cypriniformes
Cyprinidae