Scientific Name
Cottus asperrimus

Common Name
Rough sculpin

Biology
Occurs in vegetated runs and riffles of creeks and small to medium rivers, usually over mud in clear, fairly deep water (1-2 m).

Classification

Classified By

Rutter, 1908

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sculpins (Cottidae)

Distribution

Region

North America

Distribution

North America: occurs only in Pit River system in Shasta and Lassen counties in California, USA.

Range

41°N - 40°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.17 s.e. 0.44 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

9.6 cm

Common Length

5.5 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (39 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18; tmax=5)

Threat To Humans

Harmless

IUCN Red List Status

Vulnerable (VU) (D2)