Mormyrops anguilloides (Linnaeus, 1758)

Cornish jack

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

Classification	Actinopterygii \| Osteoglossiformes \| Mormyridae
Synonyms	Mormyrus anguilloides, Mormyrops anguiloides anguiloides, Mormyrops anguilloides voltae, ... more
Common names	African carp, Lele, Noagbe, ... more

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Image of Mormyrops anguilloides (Cornish jack)

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Main reference

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

Size / Weight / Age

Max length : 150 cm TL male/unsexed; (Ref. 2915); max. published weight: 15.0 kg (Ref. 7248)

Environment

Demersal; potamodromous (Ref. 51243); freshwater

Climate / Range

Tropical; 22°C - 24°C (Ref. 12468); 10°S - 21°S

Africa: White Nile, Lake Albert basin, inland waters from Senegal to Chad, rivers in Cameroon, small coastal basins in the Guinean zone. Widespread in the Congo basin, Lake Malawi, Tanganyika and Mobuto; Volta basin, Whebi Shebeli and Juba (as Mormyrops deliciosus) In southern Africa, it is restricted to the middle and lower Zambezi, Buzi, and Pungwe River (Ref. 7248).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 21 - 33; Anal spines: 0; Anal soft rays: 38 - 51. Head depressed, mouth terminal and body elongated (Ref. 13337). SL/Body depth 4.9-7.5. Head 3.4-5.1 x SL. Snout almost as wide as head. Interorbital space wide, head length/interorbital space 2.9-6.8. Variation in meristic characteristics due to differences in geographic clines (Ref. 2915).

Adults prefer deep quiet water between boulders and below overhangs, away from strong currents. Also occurs beneath Salvinia mats and in river estuaries in Lake Kariba. Juveniles prey on invertebrates, mainly shrimps and insect larvae. Larger individuals feed on small cichlids, minnows and labeos. May live for 8 years or more. Breeds during the rainy season (Ref.7248). A fractional spawner (Ref. 10606; 10605). Affinities: M. breviceps.


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

Human uses
Fisheries: commercial; gamefish: yes


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

Tools
Biogeographic modelling \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

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

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (K=0.08-0.12)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High to very high vulnerability (69 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Casal, Christine Marie V.

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Page last modified by : elaxamana, 15 July 2009

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