Hydrocynus forskahlii (Cuvier, 1819)

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

Classification	Actinopterygii \| Characiformes \| Alestidae
Synonyms	Hydrocyon forskahlii, ... more
Common names	Elongate tigerfish, Tiger fish, Tigerfish, ... more

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Main reference

Paugy, D. 1990. (Ref. 2880)
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Size / Weight / Age

Max length : 78.0 cm SL male/unsexed; (Ref. 2880); max. published weight: 15.5 kg (Ref. 13337); max. reported age: 4 years (Ref. 2757)

Environment

Pelagic; potamodromous (Ref. 51243); freshwater

Climate / Range

Tropical

Africa: Nile, Lake Albert [=Lake Mobutu Sese Seko], Lakes Turkana and Gandjule (Margherita), Senegal, Niger, Volta, Côte d'Ivoire, Guinea, Cameroon, Democratic Republic of the Congo, Ghana, Liberia, Benue, Omo, Gambia, Chad, Sierra Leone, Benin.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Slender profile. Eye <70% of interorbital space. Long and few gill rakers. Inferior lobe of caudal as well as anterior end of anal of bright red color. Rest of fins uniformly gray.

Forms shoals. An open water predator often found near the water surface (Ref. 13337). Feeds on fishes, preferring long bodied fish as they are easier to swallow and also takes insects, grass and snails (Ref. 13337). Cannibalistic. Preyed upon by fish eagle Haliaeetus vocifer (Ref. 13337). Breeding migrations have been reported up several tributaries of Lake Kariba during the rains (Ref. 13337). Affinities: H. vittatus.


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

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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 (K=0.17-0.45; tmax=4)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (39 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Boden, Gert

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Page last modified by : elaxamana, 15 July 2009

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