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Heterobranchus longifilis in Central African Republic
Vundu

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Heterobranchus longifilis   Valenciennes, 1840
Family:	Clariidae (Airbreathing catfishes)			picture (Helon_u2.jpg) by Seegers, L.
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Vundu
Max. size:	150 cm SL (male/unsexed; Ref. 4967); max. published weight: 55.0 kg (Ref. 7248)
Environment:	demersal; potamodromous ; depth range - 10 m
Climate:	tropical; 22 - 23°C; 27°N - 19°S
Global Importance:	fisheries: minor commercial; aquaculture: commercial
Resilience:	Low, minimum population doubling time 4.5 - 14 years (K=0.11)
Distribution:	Africa: Nile, Niger, Senegal, Congo system, upper and middle Zambezi. Also from Lakes Tanganyika and Edward (Ref. 7248), Gambia and Benue River, Chad and Volta basins, and the coastal basins of Guinea to Nigeria (Ref. 7357).
Diagnosis:	Dorsal spines (total): 0-0; Dorsal soft rays (total): 26-35; Anal soft rays: 42-52; Vertebrae: 55-61. Head long, broad and somewhat rectangular in dorsal outline; snout broadly rounded; eyes with superolateral position. Frontal fontanelle long and narrow; occipital fontanelle oval-shaped. Tooth plates wide. Suprabranchial organ well developed. Pectoral spine strongly serrated on anterior side. Adipose fin with blackish posterior part, nearly as long as dorsal fin (Ref. 4967); caudal fin barred. Openings of secondary canals hardly visible but display a regular pattern.
Biology:	An uncommon species which inhabits large rivers (Ref. 4967). Is the largest freshwater species in southern Africa. Occurs in large deep rivers within the mainstream or in deep pools and lakes. Most active at night, feeding on any available food, including invertebrates and insects when small, fish and other small vertebrates when large. Scavenges off large carcasses and offal from riverside villages. Live for 12 or more years (Ref. 7248)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Teugels, G.G., B. Denayer and M. Legendre. 1990. (Ref. 270)
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Central African Republic country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Museum: MRAC 75-21-P-8-9 Bangui, R. Ubangi.
Country Information:	www.cia.gov/cia/publications/factbook/geos/ct.html
Occurrences:	Occurrences    Point map
Main Ref:	Teugels, G.G., B. Denayer and M. Legendre, 1990
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Recipes | Scirus | Public aquariums | Tree of Life | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Froese, Rainer	Entered:  Torres, Armi G.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07