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Ballerus sapa (Pallas, 1814)

White-eye bream
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Ballerus sapa
Female picture by Otel, V.

Ukraine country information

Common names: Beloglazka, Klepets
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/up.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Movchan, Y.V. and A.I. Smirnov, 1983
National Database:

Common names from other countries

Danube bream, Donaubrasen, Valgesilm-abakala, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Leuciscinae
Etymology:   More on author: Pallas.

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный; солоноватоводный донно-пелагический.   Temperate; 10°C - 25°C (Ref. 13614); 65°N - 45°N, 12°E - 69°E

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

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).

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL самец/пол неопределен; (Ref. 27368); common length : 15.0 cm TL самец/пол неопределен; (Ref. 556)

Краткое описание определительные ключи | морфология | морфометрия

Differs from Ballerus ballerus by having small and inferior mouth, 47-54 scales on lateral line, and large eye, about equal to snout length (Ref. 59043).

биология     глоссарий (например epibenthic)

Occurs in fast flowing rivers. Eastern, brackish populations enter the lower reach of rivers for spawning (Ref. 1441). Inhabit large lowland rivers and estuaries. Active at night. Prey on benthic invertebrates. Semi-anadromous populations forage in large brackish-water habitats in estuaries around Black Sea. Spawn in large aggregations in fast-flowing water on gravel bottom or submerged vegetation. Usually rare and threatened due to water pollution (Ref. 59043).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Spawn in large aggregations in fast flowing water on gravel bottom or submerged vegetation. Semi-anadromous individuals begin spawning migration in November in Kura (Ref. 59043). Sticky eggs attach themselves to stones or plants (Ref. 9953).

Основная ссылка Upload your references | ссылки | координатор | соавторы

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

Статус Красного Списка МСОП (Ref. 130435)

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