Clarias werneri   Boulenger, 1906

Werner's catfish
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Actinopterygii | Siluriformes | Clariidae
Synonyms
Common names
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Main reference
Size / Weight / Age
Max length : 23.0 cm SL male/unsexed; (Ref. 4967)
Environment
Demersal; freshwater
Climate / Range
Tropical; 7°N - 7°S
Distribution
Africa: Lakes Victoria, Kyoga, Edward and Tanganyika. Reported from Bahr el Jebel in Sudan (Ref. 28714).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal spines (total): 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
    Glossary (e.g. epibenthic)
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).
IUCN Red List Status (Ref. 57073)
Threat to humans
  Harmless
Human uses
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Estimation of some characteristics with mathematical models
Resilience (Ref. 69278)
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Vulnerability (Ref. 59153)
Price category (Ref. 80766)
Low to moderate vulnerability (26 of 100)

Modified by Sa-a, Pascualita



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Page last modified by : elaxamana, 15 July 2009

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