Hyperopisus bebe bebe (Lacepède, 1803)

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

Classification	Actinopterygii \| Osteoglossiformes \| Mormyridae
Synonyms	Mormyrus bebe, Hyperopisus bebe, Hyperopisus bebe chariensis, ... more
Common names	Ngai, Purppuranuijakala, Zeing, ... more

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Main reference

Bigorne, R. 1990. (Ref. 2915)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 51.0 cm SL male/unsexed; (Ref. 2915); max. published weight: 1,000 g (Ref. 3799)

Environment

Demersal; potamodromous (Ref. 51243); freshwater

Climate / Range

Tropical; 22°C - 24°C (Ref. 12468)

Africa: Nile basin (up to Albert and Murchison Niles). Also known from the great Sahelo - Sudanian river basins of Senegal, Gambia, Niger, Bénoué, Volta, Ouémé, Ogun, Logone and Chari (Ref. 2915).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 16; Anal spines: 0; Anal soft rays: 52 - 71. Spots on adults only; body depth 3.9-6.2x SL; head length 4.6-6.2x SL; head in 1.6-2.3x longer than wide; base of anal fin 4-7.7x longer than dorsal fin base; the pectoral 1.1-1.7x head length; ventral 2x shorter pectoral; caudal peduncle is 1.5-3.6x its length.

Inhabits both still and flowing waters, breeds in the flood season. Feeds on mollusks (Ref. 28714). Possesses electroreceptors over the entire head and on the ventral and dorsal regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Its electric organ discharge (EOD) is steroid-sensitive (Ref. 10763; 10764). Fecundity value of 18,924 eggs has been reported for this species (Ref. 10607).


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

Human uses
Fisheries: 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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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate to high vulnerability (48 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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