Lake chub (Couesius plumbeus) fish species and information / pictures of Lake chub - Couesius plumbeus

Lake chub (Couesius plumbeus) fish species information

Scientific Name
Couesius plumbeus

Common Name
Lake chub

Biology
Inhabits virtually any body of water, standing or flowing, large or small (Ref. 5723). Most common in gravel-bottom pools and runs of streams and along rocky lake margins (Ref. 5723). Mostly in shallow water, but may move to deeper parts of lakes during hot weather (Ref. 27547). Feeds on zooplankton, algae, terrestrial and aquatic insects, and small fishes (Ref. 1998).

Classification

Classified By

Agassiz, 1850

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

North America

Distribution

North America: Alaska (Yukon River drainage). Throughout most of Canada and northern USA; south to Delaware River in New York, south end of Lake Michigan, Illinois, Platte River system in Colorado, and Columbia River drainage in Washington, USA. Relict population in Mississippi River basin in Iowa, USA. Sometimes hybridizes with Rhinichthys cataractae in Lake Superior (Ref. 4564).

Range

66°N - 40°N

Environment

Climate

Temperate

Water Temperature From

4 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; ; pH range: 6.5 - 7.8 demersal

Trophic Level

3.38 s.e. 0.43 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

23.0 cm

Common Length

10.5 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

Aquarium: public aquariums; bait: occasionally

Vulnerability

Low to moderate vulnerability (31 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-4; tmax=5; K=0.36)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated