Oreochromis spilurus niger Günther, 1894

Athi River tilapia

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

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	Oreochromis niger, Tilapia nigra, Tilapia nigra nigra, ... more
Common names	暗黑口孵非鲫, Kiparapara, Ngege, ... more

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Main reference

Trewavas, E. 1983. (Ref. 2)
Other references | Biblio | Coordinator : Kullander, Sven O. | Collaborators

Size / Weight / Age

Max length : 32.0 cm SL male/unsexed; (Ref. 2); 29 cm (female)

Environment

Benthopelagic; freshwater

Climate / Range

Tropical; 24°C - 28°C (Ref. 2059)

Africa: Athi River and its tributaries above Lugard's Falls; upper tributaries of the Tana River in Kenya. Also known from Ethiopia (Ref. 2).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 17 - 19; Dorsal soft rays (total): 9 - 12; Anal spines: 5; Anal soft rays: 9 - 10; Vertebrae: 29 - 31. Scales on cheek in 2-3 series. Breeding males with flanks silver-grey, with yellow on the outer edges of the scales; 7-9 dark vertical bars which are not always visible and quickly lost on removal from the water; lower lip yellow. Females with flanks yellowish silver with faint vertical bars and no lateral spots; lower lip white.

Feeds mainly on diatoms. At a larger size, O. spilurus niger will eat insect larvae, and at least in a confined space, even small fishes (Ref. 2).


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

Human uses
Aquaculture: experimental; aquarium: 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)

High, minimum population doubling time less than 15 months (tm<1)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (18 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Casal, Christine Marie V.

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Page last modified by : elaxamana, 15 July 2009

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