Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Schilbeidae
Etymology: tumbanus: Referring to the type locality of the species, Lake Tumba (Ref. 43912).
More on author: Pellegrin.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical; 3°N - 10°S
Africa: middle Congo River basin in Democratic Republic of the Congo, including Pool Malebo (= Stanley Pool); especially common in Lake Tumba (Ref. 43912).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 25.2 cm SL male/unsexed; (Ref. 43912)
Morphology | Morphometrics
(total): 1. Diagnosis: adipose fin always present; anterior nostrils closer to each other than posterior ones; snout reaching slightly beyond lower jaw; nasal barbel always reaching beyond orbit; eyes rather large (horizontal diameter 26,8-33,1% HL); inner side of pectoral spine feebly serrated (Ref. 43912).
Confined to larger lakes and rivers; possibly a shoaling species; polyphagous with a frugivorous tendency; stomach contents examined showed the presence of sand, mud, benthic vegetable remains, leaves, fruits and insect remains (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Probably of economic importance locally for fishermen of Lake Tumba; maximum reported TL 280mm (Ref. 43912).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
De Vos, L., 1986. Schilbeidae. p. 36-53. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3570)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00265 - 0.01309), b=3.02 (2.83 - 3.21), in cm total length, 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. 120179
): High, minimum population doubling time less than 15 months (Assuming fec > 10,000).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (21 of 100).