Tilapia walteri Thys van den Audenaerde, 1968

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

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	... more
Common names	Ruskotilapia, 沃氏非鲫, 沃氏非鯽, ... more

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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 : 27.0 cm TL male/unsexed; (Ref. 5163)

Environment

Benthopelagic; freshwater

Climate / Range

Tropical; 24°C - 26°C (Ref. 12468); 8°N - 5°N

Africa: Cavally and Nipoué (= Cess) Rivers in Côte d'Ivoire and Liberia; also reported from the upper St. John River in Liberia (Ref. 7378, 53405).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 9 - 10. Diagnosis: lower pharyngeal bone about as long as broad, with anterior lamella shorter than toothed area; median pharyngeal teeth not broadened; upper part of caudal fin yellow-orange, lower part greyish; dorsal fin with 15-16 spines and 12-14 soft rays; 9-13 lower gill-rakers (Ref. 53405). Description: outer jaw teeth bicuspid and non-spatulate, posterior pharyngeal teeth tricuspid; (Ref. 53405). Coloration: in life: juveniles: ground colour greyish with 5-6 dark cross bars and sometimes dark horizontal band; soft part of dorsal and upper part of caudal fins uniformly grey; well marked "tilapian" spot, disappearing in adults (Ref. 53405). Adults: uniformly grey, but distal area of soft part of dorsal and upper part of caudal fins orange-red; spinous dorsal fin blackish distally (Ref. 53405).


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

Human uses


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 (27 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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