Volga undermouth (Chondrostoma variabile)

Scientific name: Chondrostoma variabile Yakovlev, 1870

The Volga undermouth (Chondrostoma variabile) is a freshwater fish of the family Cyprinidae. Native range: Europe and Asia, Capian basin, in Emba, Ural and Volga drainages (with Oka and Kama); Black Sea basin, in Don drainage.

Biology

Diagnosed from congeners in Black and Caspian Sea basins by having straight or slightly arched mouth, 9? branched dorsal rays, 50-62 scales on lateral line, usually 10? branched anal rays, and large eye, diameter 50-65% of interorbital distance.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Chondrostoma variabile
Family
Cyprinidae (Minnows or carps)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
35.0
Environment
Freshwater; brackish; benthopelagic
Climate
Temperate
Distribution
Europe and Asia: Capian basin, in Emba, Ural and Volga drainages (with Oka and Kama); Black Sea basin, in Don drainage.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Uses
Fisheries:
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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