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Ballerus ballerus  (Linnaeus, 1758)

Zope
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Ballerus ballerus
Picture by Busse, K.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Leuciscinae

Environment / Climate / Range Ecology

Freshwater; brackish; benthopelagic; potamodromous (Ref. 51243).   Temperate; 5°C - 25°C (Ref. 12468); 63°N - 43°N, 4°E - 56°E

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 24 - 27 cm
Max length : 40.0 cm SL male/unsexed; (Ref. 59043); common length : 20.0 cm TL male/unsexed; (Ref. 556); max. published weight: 940.00 g (Ref. 6114)

Short description Morphology | Morphometrics

Differs from Ballerus sapa by having superior mouth, 62-77 scales on lateral line, and small eye with diameter about 2/3 of snout length in individuals larger than 10 cm SL (Ref. 59043).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eurasia: large rivers draining to Baltic Sea (absent in northern Sweden and Finland north of 62°N), North Sea (Weser, Elbe), Black Sea, Sea of Azov (Don) and Caspian Sea, where it is abundant in Volga, rare in Ural. Appendix III of the Bern Convention (protected fauna).

Biology     Glossary (e.g. epibenthic)

Occur in large lowland rivers with backwaters and also in eutrophic lowland lakes. Feed mainly on zooplankton in open water of backwaters and other still water bodies. Spawn along shores of rivers or in backwaters on submerged vegetation and also on gravel in moderate current. Migrate upriver in long distances to suitable spawning sites. Juveniles stay in backwaters and flooded zones along rivers. Enter freshened parts of seas to forage. Life span reaches more than 10 years. Locally threatened by habitat alterations along river banks (Ref. 59043).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Mostly spawn several times during their life. Spawning lasts usually for 1-2 weeks. Female spawn once a year. Male often guard spawning territories along the shoreline (Ref. 59043).

Main reference Upload your references | References | Coordinator | Collaborators

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

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Common names
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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00507 - 0.01430), b=3.13 (2.99 - 3.27), based on LWR estimates for species & Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.36 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18-0.19; tm=4-5).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
Price category (Ref. 80766):   Unknown.