Alestes baremoze (Joannis, 1835)

Silversides

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Characiformes \| Alestidae
Synonyms	Myletes baremoze, Alestes baremoze tchadense, Alestes kotschyi, ... more
Common names	Egyptian robber, Characin, Péré, ... more

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Picture by Larsen, J.H.

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Main reference

Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré. 1988. (Ref. 272)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 43.0 cm TL male/unsexed; (Ref. 2703); 40 cm TL (female); common length :440 cm TL (female); max. published weight: 500 g (Ref. 3023); max. reported age: 6 years (Ref. 2758)

Environment

Benthopelagic; potamodromous (Ref. 51243); freshwater; pH range: 6.5 - 7.8; dH range: ? - 30

Climate / Range

Tropical; 15°C - 35°C

Africa: Gambia, Senegal, Niger, the coastal basins of the Côte d'Ivoire (Comoé, Bandama and Sassandra), Volta, Chad basin, Nile, Lake Albert and Lake Turkana. Three forms exists: (Alestes baremoze soudaniensis) West African inland, (Alestes baremoze eburneensis) West African Coastal and (Alestes baremoze baremoze) Nilotic.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 2; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 19 - 28; Vertebrae: 41 - 49. Silver colored with blue-gray black and white belly, grayish fins, entirely covered with scales; Sudanese fishes have orange colors on the inferior lobe of the caudal fin. External border of anal fin curves: slightly and regularly concave in females; forms an anterior lobe in males with some rays clearly longer. Well developed fontanel. Sympatric with A. dentex.

Mainly diurnal. There is considerable flexibility in its diet, A. baremoze shifts from zooplankton to zoobenthos, detritus and macrophytes as plankton densities decline (Ref. 28714). Occurs at a temperature range of 14.6-35.0°C. In the Malamfatori area (Tchad), seine-net fishery on the River Yobe depends on seasonal upstream (from Lake Chad) and downstream migration during the flood (August-December) and dry (January-March) seasons, respectively. Also, there is an intensive gillnet fishery from July-October at the river mouth. A. baremoze moves offshore (in Lake Chad) beginning March.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: highly commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.42; tm=2-3; tmax=5)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (22 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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