Gudgeon (Gobio gobio)

Scientific name: Gobio gobio Linnaeus, 1758

The Gudgeon (Gobio gobio) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 2–18°C (36–64°F).

Gudgeon care at a glance

Temperature: 2–18°C (36–64°F)

Biology

Occurs in nearly all types of riverine and lacustrine habitats with sand bottom. Found in small mountain streams, large lowland rivers and large lakes. Inhabits fast flowing rivers with sand or gravel bottom but may also occur in still waters. Forms schools. Feeds on insect larvae, mollusks, and crustaceans. Normally active during the day but if they are disturbed, in particular, by predators, they can defer their activity to periods when light intensity is weak. Capable of emitting squeaking sounds. These vocalizations, which is a means by which fish communicate with each other, vary with the degree of activity and the temperature and are independent of the season of reproduction. Breeds in shallow water over stones, sand or plant material. Eggs are released above substrate and drift with current, sinking to bottom and sticking

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Gobio gobio
Family: Cyprinidae (Minnows or carps)
Order: Cypriniformes (Carps)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 20.0
Common length: 12.0
Environment: Freshwater; brackish;; pH range: 7.0 - 7.5; dH range: 10 - 20 benthopelagic; potamodromous
Climate: Temperate
Distribution: Europe: Atlantic Ocean, North and Baltic Sea basins, from Loire drainage eastward, eastern Great Britain, Rh?ne and Volga drainages, upper Danube and middle and upper Dniestr and Dniepr drainages; in Finland, north to about 61?N. Introduced to eastern and northern Italy, Ireland, Wales and Scotland. Eastern and southern limits unclear. Occurs as far east as Korea. Populations from the Iberian Peninsula and Adour basin in southern France refer to G. lozanoi. Populations from the Caspian basin may represent a distinct species.
Threat to humans: Harmless
Uses: Fisheries: commercial; aquarium: commercial; bait: usually
Resilience: Medium, minimum population doubling time 1.4 - 4.4 years (tm=1-3; tmax=8; Fec=1,000-3,000)