Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Clariidae
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water. More on author: Boulenger.
Environment / Climate / Range
Freshwater; demersal. Tropical, preferred ?; 9°N - 1°S
Africa: rivers Ogowe (Gabon and Republic of Congo), Sanaga, Nyong, Kribi, Ntem, Ja (Dja) and Sangha (Cameroon)(Ref. 248, 92841). In southeast Nigeria known from the Osse, Niger delta and Cross (Ref. 57129).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 48.3 cm TL male/unsexed; (Ref. 57129)
Morphology | Morphometrics
soft rays: 54 - 71;
Vertebrae: 58 - 65. Diagnosis: head relatively long (Ref. 248, 57129) and flattened [head length 24.8-28.6 % (m = 26.2) of standard length](Ref. 57129). Frontal fontanella short and wide (Ref. 57129), "sole-shaped" (Ref. 248). Lateral cephalic bones (dermosphenotic and supraorbital) becoming contiguous already in young individuals (between 70 and 80 mm SL)(Ref. 248, 57129). First gill arch with 11-19 gill rakers (Ref. 57129). Color pattern usually uniform, occasionally a marbled pattern consisting of various dark brown spots on a light-brown background; head broad and pointed in dorsal outline; tooth plates broad; suprabranchial organ well developed although not completely filling the chamber (Ref. 248).
Coloration: no information on colour in life (Ref. 57129). Most preserved specimens uniformly coloured: back and sides light to dark brown, belly beige-white (Ref. 57129). Some specimens have a marbled pattern, with numerous black spots against a lighter background on back and sides, while the belly is beige to yellowish (Ref. 57129).
Ecology, food and breeding: unknown (Ref. 248).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Teugels, G.G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci. Zool., 247:199 p. (Ref. 248)
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=0.00708 (0.00330 - 0.01518), b=3.00 (2.82 - 3.18), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec < 10,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .