Scientific Name
Chrysichthys nigrodigitatus

Common Name
Bagrid catfish

Biology
Occur in shallow waters of lakes (less than 4 m), over mud and fine sand bottom. Omnivorous, feed on seeds, insects, bivalves and detritus (Ref. 13851). Feeding becomes specialized with age and size, larger fish may feed on decapods and fish (Ref. 27935).

Classification

Classified By

Lacep?de, 1803

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Claroteid catfishes (Claroteidae)

Distribution

Region

Africa

Distribution

Africa: Senegal to Cabinda, Angola (Ref. 3236). Reported from Mauritania (Ref. 55783). Also records from lower Congo River (Ref. 12818).

Range

15°N - 13°S

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

28 °C

Depth From - meters

3 m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal; potamodromous (Ref. 51243); depth range 3 - ? m (Ref. 13851)

Trophic Level

2.58 s.e. 0.34 Based on diet studies.

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

65.0 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

Fisheries: minor commercial; aquaculture: commercial; gamefish: yes; aquarium: public aquariums

Vulnerability

Low to moderate vulnerability (32 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.12-0.53; Fec

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)