Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > 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: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Africa: middle Congo River basin, Lake Albert system and Malagarasi basin (Ref. 248, 78218). Also reported from the lower Lualaba (Ref. 106245).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.6 cm TL male/unsexed; (Ref. 3820)
Morphology | Morphometrics
soft rays: 63 - 69;
Vertebrae: 60 - 64. Head rectangular to oval-shaped dorsally; snout broadly rounded; eyes laterally placed. Frontal fontanelle long and narrow; occipital fontanelle small and oval-shaped. Supraorbital and `dermosphenotic' bones separate but not reduced. Tooth plates broad. Pectoral spine slightly curved; outer side with strong, downward serrations. Gill rakers short and squat, although distantly set. Suprabranchial organ rather primitive. Openings of the secondary sensory canals display a regular pattern.
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. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00343 - 0.01757), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this Genus-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 (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .