Scientific Name
Macrhybopsis aestivalis

Common Name
Speckled chub

Biology
Inhabits sand and gravel runs of small to large rivers (Ref. 5723, 10294). Feeds on aquatic insect larvae dominated by midges (Ref. 10294).

Classification

Classified By

Girard, 1856

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

North America

Distribution

North America: Mississippi River basin from Ohio and West Virginia west to Minnesota and Nebraska, USA and south to Gulf Coast; Gulf Coast drainages from Choctawhatchee River in Alabama and Florida to Rio Grande in Texas and New Mexico, USA, and Mexico.

Range

46°N - 26°N

Environment

Climate

Subtropical

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

3.2 s.e. 0.40 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

False

Physical Size and Genetics

Maximum Length

7.6 cm

Common Length

6.1 cm

Phylogenetic Diversity Index

PD50 = 0.5039 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (tmax=1)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated