Fourhorn sculpin (Triglopsis quadricornis)

Scientific name: Triglopsis quadricornis Linnaeus, 1758

The Fourhorn sculpin (Triglopsis quadricornis) is a freshwater fish of the family Cottidae.

Biology

Occurs in cold brackish and moderately saline water near the coast. Enters coastal rivers and may occur as far as 120 miles inland. Landlocked in lakes. Maximum depth reported at 100m. Benthic. Movements are limited to short onshore-offshore seasonal movements and mass movements of fry into shallow water in autumn. Moreover, there are no migrations of large numbers; movement into freshwater and long distances up rivers are apparently undertaken by relatively few individuals at a time. Diurnal from November to April but is largely nocturnal the rest of the year. Feeds on small crustaceans, fishes and molluscs. Spawning takes place in shallow waters, male digs a groove in the gravel where pairing and egg laying occur. Move

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Triglopsis quadricornis
Family
Cottidae (Sculpins)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
60.0
Common length
30.0
Depth range
0–100 m (0–328 ft)
Environment
Marine; freshwater; brackish; demersal; depth range 0 - 100 m
Climate
Polar
Distribution
Atlantic and Arctic: Baltic coast of Sweden, Finland, Russia and southwestern to eastern Poland; western coast of Sweden to northern coast of Norway, eastward to White and Barents Sea basins. In Siberia eastward to about Anadyr estuary. Landlocked populations in Sweden, central Finland and Karelia. Arctic drainages of North America. In Appendix III of the Bern Convention (protected fauna).
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Uses
Fisheries: subsistence fisheries
Resilience
Low, minimum population doubling time 4.5 - 14 years (tm=3-5; tmax=14; Fec=792)

Sources

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

Last updated