Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 80.0 cm TL male/unsexed; (Ref. 7431); max. published weight: 1.3 kg (Ref. 3516)
Environment
Freshwater; demersal; pH range: 6.5 - ? ; dH range: 10 - ?
Climate / Range
Tropical; 24°C - 30°C (Ref. 2059), preferred ?
Distribution
Africa: Niger basin (upper Niger, Benue and Niger Delta), most coastal river basins from Senegal and Gambia eastward to include the Tano and Prah basins in Ghana, and the Cross and Sanaga basins east of the Niger delta (Ref. 7431). Absent from the Volta basin, Chad, Ogooué, Kwilu-Niari or Chiloango basins (Ref. 7431).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 2;
Anal
spines: 0;
Anal
soft rays: 113 - 141. With 35-45 ventral spines; head 5.0-5.1 times SL; eye diameter 4.6-5.3 times head length; length of nasal tentacle twice the eye diameter. Caudal vertebrae 63-69 (Ref. 7431).
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
Fisheries: subsistence fisheries; aquarium: commercial
More information
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Tools
Special reports
Download XML
Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.7510 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
3.6 ±0.5 se; Based on size and trophs of closest relatives
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.29)
Vulnerability
Moderate vulnerability (38 of 100)
Price category