Fourhorn sculpin (Triglopsis quadricornis) fish species and information / pictures of Fourhorn sculpin - Triglopsis quadricornis

Fourhorn sculpin (Triglopsis quadricornis) fish species information

Scientific Name
Triglopsis quadricornis

Common Name
Fourhorn sculpin

Biology
Occurs in cold brackish and moderately saline water near the coast (Ref. 27547). Enters coastal rivers and may occur as far as 120 miles inland (Ref. 5723). Landlocked in lakes (Ref. 59043). Maximum depth reported at 100m (Ref. 35388). Benthic (Ref. 58426). Movements are limited to short onshore-offshore seasonal movements and mass movements of fry into shallow water in autumn (Ref. 28908, 28910). 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 (Ref. 27547). Diurnal from November to April but is largely nocturnal the rest of the year (Ref. 28905). Feeds on small crustaceans, fishes (Ref. 4968) and molluscs (Ref. 58426). Spawning takes place in shallow waters, male digs a groove in the gravel where pairing and egg laying occur. Move

Classification

Classified By

Linnaeus, 1758

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sculpins (Cottidae)

Distribution

Region

Atlantic and Arctic

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 (Ref. 59043). Arctic drainages of North America (Ref. 5723). In Appendix III of the Bern Convention (protected fauna).

Range

83°N - 45°N, 180°W - 180°E

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

100 m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; depth range 0 - 100 m (Ref. 58496)

Trophic Level

3.69000005722046 s.e. 0.59 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

60.0 cm

Common Length

30.0 cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries

Vulnerability

Moderate to high vulnerability (49 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (tm=3-5; tmax=14; Fec=792)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)