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Teleostei (teleosts) > Siluriformes (Catfishes) > Schilbeidae (Schilbid catfishes)
Etymology: brevianalis: From the Latin "brevis" (short) and "anus" (here referring to the anal fin) because of the short anal fin and the low number of anal fin rays in the types of this species (Ref. 43912).
More on author: Pellegrin.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Tropical; 24°C - 27°C (Ref. 12468)

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Africa: Nigeria to Cameroon (Ref. 57127), possibly also from coastal rivers in Togo (Ref. 78218). Known from the rivers Ogun (Ref. 13331), lower Niger (Ref. 13331, 57127), Kwa-Ibo and Cross in Nigeria (Ref. 43912, 57127), and the Wouri, Sanaga and Nyong in Cameroon (Ref. 7351, 43912, 81643). Report from Ogowe (Ref. 43912) refers to S. laticeps (Ref. 81643). Report from the Congo River basin (Ref. 51193) not confirmed in Ref. 43912, 78218 or 81643.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 81643)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Anal soft rays: 34 - 39. Diagnosis: small species, less than 100 mm long; eyes small, diameter not exceeding 23% of head length; inner margin of pectoral-fin spine weakly denticulate (Ref. 43912, 57127, 81643). Head rounded (Ref. 43912). Nasal barbels always extending beyond hind margin of eye (Ref. 57127, 81643) but not beyond anterior border of opercle (Ref. 43912). Adipose fin always present (Ref. 43912, 57127, 81643) and fully developed (Ref. 57127, 81643). 34-39 branched anal-fin rays and 6-8 gill rakers on lower limb of first gill arch (Ref. 57127, 81643). Colour pattern marbled (Ref. 43912, 57127, 81643). Barbels well developed (Ref. 81643). Posterior nostrils at same distance or closer to each other than the anterior pair (Ref. 43912, 81643).

Oviparous, eggs are unguarded (Ref. 205). Occasionally imported from Nigeria to Europe or America for aquarium purposes (Ref. 43912).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 12 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00589 (0.00269 - 0.01291), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±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 (10 of 100).

Schilbe brevianalis (Pellegrin, 1929)