Auchenoglanis occidentalis  (Valenciennes, 1840)

Bubu
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Auchenoglanis occidentalis   AquaMaps   Data sources: GBIF OBIS
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Auchenoglanis occidentalis
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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).

Environment / Climate / Range Ecology

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)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 7-8; Anal spines: 3-4; Anal soft rays: 6 - 8. Diagnosis: head width usually less than 2/3 of standard length, snout length more than 0.9 times the head width in adults (less in juveniles); hind margin of adipose fin rounded; premaxillary dentition forming (in adults) two close-set oval plates; maxillary barbel often blackish and only rarely reaching to anterior margin of opercule; 8-12 (usually 10 or 11) gill rakers on lower limb of first gill arch; palatine membrane with multiple invaginations, 1-4 of them forming longer lobes; dorsal margin of cleithral process ending in a point (visible only in adults)(Ref. 57126).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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.

Biology     Glossary (e.g. epibenthic)

Inhabits lakes and large rivers (Ref. 4967), but has never been observed in large quantities in forested areas (Ref. 57126). Occurs 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).

Main reference Upload your references | References | Coordinator | Collaborators

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)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00720 - 0.02413), b=3.03 (2.87 - 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) .
Price category (Ref. 80766):   Unknown.