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Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
More on authors: Eigenmann & Eigenmann.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Temperate; 47°N - 38°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: Columbia drainage from Idaho, Wyoming and Nevada to Washington and Oregon in the USA; western endorheic basins including Lake Tahoe in Nevada and California, Humboldt River in Nevada, and Bear River in Utah, USA.

Length at first maturity / Size / Weight / Age

Maturity: L_m 4.8 range ? - ? cm
Max length : 13.0 cm TL male/unsexed; (Ref. 5723); common length : 4.8 cm TL male/unsexed; (Ref. 12193)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7 - 8; Dorsal soft rays (total): 16 - 18; Anal soft rays: 11 - 13.

Inhabits rubble and gravel riffles of cold creeks and small to medium rivers. Also found in rocky shores of lakes.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 08 November 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
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Anatomy
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Visual pigment(s)
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Generation time: 3.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Fec=181).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (32 of 100).

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