Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; potamodromous (Ref. 51243). Tropical
Africa: Nile River, Chad basin, Niger River, Volta River, Bandama River, Comoé River and Ouémé River (Ref. 2835, 81263).
Length at first maturity / Size / Weight / Age
Maturity: Lm 32.0  range ? - ? cm
Max length : 65.5 cm SL male/unsexed; (Ref. 123661); max. published weight: 3.4 kg (Ref. 123661)
Short description
Morphology | Morphometrics
Inhabits swamps and rivers. This species is essentially a piscivorous (Ref. 9695, 28714). Diet includes snails and crustaceans (Ref. 30488).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gosse, J.P. and J. Daget, 2003. Polypteridae. p. 101-112. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81263)
IUCN Red List Status (Ref. 125652)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
More information
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00272 - 0.00701), b=3.08 (2.94 - 3.22), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.63 se; based on food items.
Resilience
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100) .
Climate Vulnerability (Ref.
125649): (0 of 100) .
Nutrients (Ref.
124155): Calcium = 155 [95, 286] mg/100g ; Iron = 1.46 [1.00, 2.30] mg/100g ; Protein = 17.4 [16.3, 18.5] % ; Omega3 = 0.253 [0.118, 0.558] g/100g ; Selenium = 89.7 [39.6, 205.9] μg/100g ; VitaminA = 25.2 [10.2, 64.3] μg/100g ; Zinc = 1.3 [0.9, 1.8] mg/100g (wet weight);