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Clarias werneri in Sudan
Werner's catfish

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Clarias werneri   Boulenger, 1906
Family:	Clariidae (Airbreathing catfishes)			picture (Clwer_u0.gif) by FAO
Order:	Siluriformes  (catfish)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Werner's catfish
Max. size:	23.0 cm SL (male/unsexed; Ref. 4967)
Environment:	demersal
Climate:	tropical; 7°N - 7°S
Global Importance:
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Africa: Lakes Victoria, Kyoga, Edward and Tanganyika. Reported from Bahr el Jebel in Sudan (Ref. 28714).
Diagnosis:	Dorsal spines (total): 0-0; Dorsal soft rays (total): 64-92; Anal soft rays: 64-79; Vertebrae: 58-62. Pectoral fin spine serrated on both inner and outer sides (Ref. 34290). Head pointed in dorsal outline; snout short and slightly rounded; eyes more dorsally located. Frontal fontanelle short and squat (`sole-shaped') or intermediate between `sole-shaped' and `knife-shaped'; occipital fontanelle long and oval-shaped. The `dermosphenotic' and supraorbital joined. Tooth plates small. gill rakers long, slender and distantly set. Suprabranchial organ well developed. Openings of secondary canals regularly arranged along flanks.
Biology:	Found in lakes and rivers. Feeds mainly on insects, consisting of larval and adult aquatic Coleoptera, terrestrial insects, chironomid larvae and larvae of Povilla, culicines and hydroptilids. Also feeds on ostracods, gastropods, plants, copepods and Hydracarina (Ref. 248)
Threatened:	, (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Teugels, G.G.. 1986. (Ref. 248)
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Sudan country information
Common names:	Abu shanab, Attek, Cik, Cogo, Garmut, Kor, Pet cick, Pet der, Tukpe		Ref:  Bailey, R.G., 1994
Status:	native		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
Comments:	Occurs in the Bahr el Jebel (Ref. 28714).
Country Information:	www.cia.gov/cia/publications/factbook/geos/su.html
Occurrences:	Occurrences    Point map
Main Ref:	Bailey, R.G., 1994
Update

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 | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Scirus | Tree of Life | Zoological Record
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	Entered:  Sa-a, Pascualita

	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