Caspian gudgeon (Gobio holurus)

Scientific name: Gobio holurus Fowler, 1976

Caspian gudgeon (Gobio holurus)

The Caspian gudgeon (Gobio holurus) is a freshwater fish of the family Cyprinidae. Native range: Europe, Kuma, Terek, and Sulak drainages in western Caspian basin, Russia.

Biology

Diagnosed from other congeners in Black and Caspian Sea basins by having the following characters: barbel reaching to or beyond posterior eye margin; pectoral extending to or 1 scale in front of pelvic origin in mature males; breast scaled between pectorals, scales extending forward beyond pectoral base (at least in some individuals of any population); head length 26-28% SL; head depth 16-17% SL at nape, 48-62% HL at eye; body depth 22-23% SL; head width 15-17% SL, 58-62% HL; eye diameter 4-6% SL, 3.1-3.7 times in head depth, 1.4-1.5 times in interorbital distance (at 5-6 cm SL); caudal peduncle depth 33-36% HL.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Gobio holurus
Family
Cyprinidae (Minnows or carps)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
10.0
Environment
Freshwater; benthopelagic
Climate
Temperate
Distribution
Europe: Kuma, Terek, and Sulak drainages in western Caspian basin, Russia.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless

Sources

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

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