Tilapia busumana (Günther, 1903)

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

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	Chromis busumanus, Tilapia fossilis, ... more
Common names	Silla, Täpläselkätilapia, 巴苏非鲫, ... more

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Picture by Dubosc, J.

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Main reference

Teugels, G.G. and D.F.E. Thys van den Audenaerde. 1991. (Ref. 5163)
Other references | Biblio | Coordinator : Kullander, Sven O. | Collaborators

Size / Weight / Age

Max length : 18.0 cm SL male/unsexed; (Ref. 7378)

Environment

Demersal; freshwater

Climate / Range

Tropical; 23°C - 25°C (Ref. 2060); 8°N - 5°N

Africa: Bia, Tano and Pra basins in southeast Côte d'Ivoire and southwest Ghana; also in Lake Bosumtwi in Ghana.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 10 - 13; Anal spines: 3; Anal soft rays: 7 - 9. Diagnosis: 8-12 lower gill-rakers; median outer teeth on jaws bicuspid not spatulated, lateral ones conical; inner teeth tricuspid with 3 cuspids equal in young specimens and central cuspid more developed in adults; adults with distinct occipital hump (Ref. 53405). Description: lower pharyngeal bone as long as broad, length of toothed part 51.2-61.2% of total bone length; posterior pharyngeal teeth bicuspid, not broadened; micro-gillrakers present; scales cycloid (Ref. 53405). Coloration: in life: adults from rivers: bluish-green, darker on snout and occiput, with some traces of cross bars and black spot at base of every scale on sides; pectoral fins transparent; pelvics light greyish-green, lighter anteriorly; anal fin greyish-green; dorsal and caudal fins greenish- to greyish-blue, with some narrow speckled areas between rays; "tilapian" spot often located partly on spinous part of dorsal fin; distal margin of dorsal fin and upper angle of caudal fin yellow-orange (Ref. 53405). Adults from Lake Bosumtwi: more bluish-purple to blackish, darker on underside of head and body; fins bluish-grey; distal margin of dorsal fin (continuing on upper angle of caudal fin) whitish to bluish-white (Ref. 53405). Juveniles: greyish, with 8-10 cross bars and sometimes mid-lateral horizontal band; distal margin of dorsal fin red; "tilapian" spot well visible (Ref. 53405).

Adapted to living in fast-flowing rivers with rapids (Ref. 2).


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

Human uses
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 (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low to moderate vulnerability (25 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Sa-a, Pascualita

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Page last modified by : elaxamana, 15 July 2009

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