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Clarias theodorae in Botswana
Snake catfish

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Clarias theodorae   Weber, 1897
Family:	Clariidae (Airbreathing catfishes)			picture (Clthe_u1.gif) by Mertens, P.
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Snake catfish
Max. size:	35.0 cm TL (male/unsexed; Ref. 3820)
Environment:	demersal
Climate:	tropical; 6°N - 30°S
Global Importance:	fisheries: subsistence fisheries; aquarium: commercial
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Africa: Zambezi, Kafue and Shire Rivers; Upper Congo system; Lakes Tanganyika, Bangweulu, Kobo, Niumbe, Mweru and Malawi; Chobe, Okavango and Cunene Rivers; Pungwe, Sabi, Lundi Rivers and Zimbabwean tributaries of the Limpopo River; Incomati, Pongolo and Umgeni rivers and Lake Sibaya in Natal.
Diagnosis:	Dorsal spines (total): 0-0; Dorsal soft rays (total): 78-92; Anal soft rays: 64-76; Vertebrae: 56-61. Head rectangular in dorsal outline; snout broadly rounded; eyes dorsally located. Frontal fontanelle `knife-shaped'; occipital fontanelle very long and oval-shaped. The `dermosphenotic' and supraorbital bones become joined in specimens of 80-90 mm SL. Tooth plates relatively small. Dorsal and anal fins not confluent with caudal fins. gill rakers relatively long, slender and distantly set. Openings of the secondary sensory canals arranged in regular pattern on the flanks.
Biology:	Lives in vegetated areas in shallow and swampy places around the lake. Occasionally found in cataracts, hiding under rocks (Ref. 248). Feeds mostly on insects (Coleoptera, ants, Chironomid larvae) (Ref. 248 & 5595)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Teugels, G.G.. 1986. (Ref. 248)
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Botswana country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:  Teugels, G.G., 1986
Salinity:	freshwater
Uses:	live export:
Comments:	Known from the Okavango Delta in the Boteti River, Thamalakane River, Nxaraga Lagoon, Xakanixa Lagoon, Magwexana Lagoon, mainstream channel and Dungu Lagoon (Ref. 2751). Also in Lake Ngami (Ref. 248).
Country Information:	www.cia.gov/cia/publications/factbook/geos/bc.html
Occurrences:	Occurrences    Point map
Main Ref:	Merron, G.S. and M.N. Bruton, 1995
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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 | 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 | Tree of Life | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Musschoot, Tobias	Entered:  Binohlan, Crispina B.

	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