White-eye bream (Ballerus sapa) fish species and information / pictures of White-eye bream - Ballerus sapa

White-eye bream (Ballerus sapa) fish species information

Scientific Name
Ballerus sapa

Common Name
White-eye bream

Biology
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).

Classification

Classified By

Pallas, 1814

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

Europe and Asia

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).

Range

65°N - 45°N, 12°E - 69°E

Environment

Climate

Temperate

Water Temperature From

10 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; brackish; benthopelagic

Trophic Level

2.82 s.e. 0.32 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

35.0 cm

Common Length

15.0 cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries

Vulnerability

High vulnerability (63 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=4)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)