Torrent sculpin (Cottus rhotheus)

Scientific name: Cottus rhotheus Smith, 1882

The Torrent sculpin (Cottus rhotheus) is a freshwater fish of the family Cottidae.

Biology

Inhabits rubble and gravel riffles of rivers and rocky lake shores. Individuals up to 5 cm feed on planktonic crustaceans and aquatic insect larvae especially that of midges and mayflies. Larger sculpins feed on minnows and other fishes. Possibly spawns in June.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Cottus rhotheus
Family
Cottidae (Sculpins)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
15.5
Common length
6.8
Environment
Freshwater; demersal
Climate
Temperate
Distribution
North America: upper Fraser River drainage in British Columbia in Canada to Nehalem River in Oregon, USA (including Columbia River drainage of British Columbia in Canada, and Washington, Idaho, Montana and Oregon in the USA).
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Fec=448)

Sources

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

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