Ballerus ballerus

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Abramis ballerus.jpg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Ballerus
Species: B. ballerus
Binomial name
Ballerus ballerus
(Linnaeus, 1758)

Abramis ballerus

Ballerus ballerus, also known as the zope or the blue bream, is a fish native to Eurasia. Ballerus ballerus feeds mostly on larger zooplankton. It can reach sizes of up to about 45 cm and a weight of around 0.8 kg.

In Sweden it is seen in Vänern, Hjälmaren, Mälaren and adjoining waters, plus Helgeån waterbody.

The Python-based application server Zope is named after the species.[citation needed]