Environment / Climate / Range
Freshwater; demersal; potamodromous (Ref. 51243). Tropical, preferred ?
Africa: Niger (Lake Kainji and further downstream), Cross and Chad basins (Ref. 57127). Also in the Nile and Lake Turkana system (Ref. 43912).
Length at first maturity / Size / Weight / Age
Maturity: Lm 21.0  range ? - ? cm
Max length : 36.0 cm SL male/unsexed; (Ref. 57127)
Morphology | Morphometrics
soft rays: 59 - 73. Diagnosis: 13-16 gill rakers on lower limb of first gill arch; 59-73 branched anal-fin rays; eyes positioned dorso-laterally; adipose fin always absent; often with a post-occipital hump, a character also sometimes found in Schilbe intermedius whose head profile is extremely variable (Ref. 57127).
Coloration: sides more or less silvery in juveniles; head and postcephalic area irregularly mottled (Ref. 57127). In adults, head and back, as well as all fin-bases, dark brown; sides yellowish or whitish; anal fin sometimes black-edged (Ref. 57127).
Oviparous, eggs are unguarded (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
De Vos, L., 2003. Schilbeidae. p. 97-116 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57127)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00255 - 0.01239), b=3.03 (2.84 - 3.22), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (K=1.30; tmax=3; assuming fec > 10,000).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .