Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Claroteidae
(Claroteid catfishes) > Auchenoglanidinae
Etymology: Auchenoglanis: Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335).
The species Auchenoglanis acuticeps Pappenheim, 1914 and Auchenoglanis occidentalis tchadensis Pellegrin, 1909 are considered valid in Eschmeyer (CofF ver. Jul. 2011: Ref. 87661). We postpone this change until a more complete assessment is published.
Environment / Climate / Range
Freshwater; demersal; pH range: 6.5 - 7.8; dH range: ? - 28; potamodromous (Ref. 51243). Tropical; 21°C - 25°C (Ref. 2060)
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 39 - ? cm
Max length : 70.0 cm SL male/unsexed; (Ref. 4967)
Africa: present in most rivers of West Africa, Lake Chad, the entire Congo River system, the Nile, East African lakes, and the rivers Omo and Giuba.
Inhabit lakes and large rivers (Ref. 4967). Occur in shallow water with muddy bottom. Omnivore, feed on plankton, mollusks, seeds and detritus (Ref. 13868). Oviparous (Ref. 205). Nested eggs are guarded by the male parent (Ref. 47642). Furthermore, the male plays host to eggs and young of Dinotopterus cunningtoni which takes advantage of the already prepared nest and feed on the host brood (Ref. 49546). An example of interspecific brood care.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eggs are brooded and guarded by the male parent (Ref. 47642).
Risch, L.M., 2003. Claroteidae. p. 60-96 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57126)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00556 - 0.01882), b=3.02 (2.85 - 3.19), based on LWR estimates for species & Subfamily-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.33 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .