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Teleostei (teleosts) > Siluriformes (Catfishes) > Schilbeidae (Schilbid catfishes)
Etymology: nyongensis: Referring to the type locality of this species (River Nyong, Cameroun)(Ref. 43912)..

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

Freshwater; demersal. Tropical; 5°N - 3°N

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Africa: endemic to the Nyong in Cameroon (Ref. 81643). Only known from the type locality (Ref. 43912).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.1 cm SL male/unsexed; (Ref. 43912)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1. Diagnosis: adipose fin always present (Ref. 43912, 81643) and fully developed (Ref. 81643). Anterior nostrils closer to each other than to the posterior pair; nasal barbel reaching beyond posterior border of eye, sometimes up to anterior edge of opercle; eyes strikingly large (31-32.7% HL); inner side of pectoral spine strongly serrated; snout projecting beyond mouth (Ref. 43912, 81643).

Oviparous, eggs are unguarded (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Distinct pairing (Ref. 205).

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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)

Data deficient (DD) ; Date assessed: 16 February 2009

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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±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).

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Schilbe nyongensis (De Vos, 1981)