Twee redfin (Barbus erubescens) fish species and information / pictures of Twee redfin - Barbus erubescens

Twee redfin (Barbus erubescens) fish species information

Scientific Name
Barbus erubescens

Common Name
Twee redfin

Biology
Inhabits pools and deeper flowing stretches, forming schools of similar sized individuals. Juveniles sometimes in mixed schools with the Cape galaxias. Feeds on aquatic and other insects from surface and midwater. Breeds during summer, males congregating over bottom in flowing water. Threatened by water extraction, agricultural pollution and introduced fishes (Ref. 7248).

Classification

Classified By

Skelton, 1974

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

Africa

Distribution

Africa: Twee River and its two source tributaries, the Middledeur and Suurvlei Rivers, South Africa. Also recorded from the Olifants River, southwestern Cape, South Africa (Ref. 27553).

Range

31°S - 33°S

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

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

9.5 cm

Common Length

Unknown 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

Low vulnerability (23 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Critically Endangered (CR) (B2ab(ii,iii,v))