Oreochromis mweruensis Trewavas, 1983

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

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	Oreochromis macrochir mweruensis, ... more
Common names	姆韦鲁湖口孵非鲫, Igihwati, Mweru tilapia, ... 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 : 23.8 cm SL male/unsexed; (Ref. 2)

Environment

Benthopelagic; non-migratory; freshwater; brackish

Climate / Range

Tropical; 7°S - 12°S

Africa: Lake Mweru and the swamps and saline lakes in Mweru-wa-Ntipa, the lower Luapula River system and the Lufira River (upper Congo River basin) in Democratic Republic of the Congo and Zambia (Ref. 2). Also reported from Lake Kivu in Rwanda (Ref. 46152).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 14; Anal spines: 3; Anal soft rays: 9 - 12; Vertebrae: 30 - 32. Scales on cheek in 2-3 rows. Caudal scales variable, not on the inter-radial membranes except at the base; never stiffening the fin. Genital papilla large and tuberculate or scalloped, tasseled in breeding males. Generally lighter or darker olive-green. Breeding male iridescent dark green to blue-black on head, body and vertical fins; red edge to dorsal and caudal fins.

Young O. macrochir mweruensis feed on epiphytic filamentous algae in swampy areas. Adults feed on bottom deposits, but those that migrated to the deeper northern end feed almost exclusively on plankton (Ref. 2).


IUCN Red List Status (Ref. 57073)	Threat to humans
Least Concern (LC)	Harmless

Human uses
Aquaculture: experimental


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 (20 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Binohlan, Crispina B.

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Page last modified by : elaxamana, 15 July 2009

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