Oreochromis placidus
Taxonomy [top]
| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | ACTINOPTERYGII | PERCIFORMES | CICHLIDAE |
| Scientific Name: | Oreochromis placidus | |||
| Species Authority: | (Trewavas, 1941) | |||
| Infra-specific Taxa Assessed: | ||||
Common Name/s:
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| Taxonomic Notes: | In this assessment, O. placidus is considered distinct from O. rovumae. | |||
Assessment Information [top]
| Red List Category & Criteria: | Least Concern ver 3.1 |
| Year Assessed: | 2007 |
| Assessor/s: | Bills, R., Engelbrecht, J., Cambray, J. & Marshall, B.E. |
| Reviewer/s: | Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Unit) |
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Justification: Widespread and common in suitable habitats of large rivers of the Mozambique coastal plain. Extends into Zimbabwe in the Save River system and the lower Shire in Malawi. No major threats known. |
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Geographic Range [top]
| Range Description: | Coastal plain rivers of the east African coast from the Mkuze River in KwaZulu-Natal to Lindi, southern Tanzania. In Zimbabwe it occurs in the lower Save-Runde system and lower sections of some Zambezian tributaries e.g., the Mazowe (Bell-Cross and Minshull 1988). |
| Countries: |
Native:
Malawi; Mozambique; South Africa; Tanzania, United Republic of
Reintroduced:
Zimbabwe
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| Range Map: |
(click map to view full version)
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Population [top]
| Population Trend: |
Unknown
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Habitat and Ecology [top]
| Habitat and Ecology: | In the lower Zambezi it was collected in slow flowing sections of main channel habitats and not marginal lagoons. Has been reported only from freshwaters and low altitudes and so its salinity tolerances are probably narrower than O. mossambicus. |
| Systems: | Freshwater |
Threats [top]
| Major Threat(s): | The spread of O. niloticus is a potential threat although interbreeding between the two species has not yet been reported. |
Conservation Actions [top]
| Conservation Actions: | Possibly maintenance of pure stocks in refuge areas. Control of the spread of O. niloticus. |
Bibliography [top]
|
Bell-Cross, G. and Minshull, J.L. 1988. The fishes of Zimbabwe. National Museums and Monuments of Zimbabwe, Harare, Zimbabwe. Bills, I.R. 1999. An inventory of fishes from the lower Zambezi River, Mozambique (27/7/1999 to 14/8/1999). J.L.B. Smith Institute of Ichthyology, Investigational report. J.L.B. Smith Institute of Ichthyology, Grahamstown. IUCN. 2007. 2007 IUCN Red List of Threatened Species. Available at: www.iucnredlist.org. (Accessed: 12th September 2007). Skelton, P.H. 2001. A Complete Guide to the Freshwater Fishes of Southern Africa. Struik Publishers, Cape Town, South Africa. |
| Citation: | Bills, R., Engelbrecht, J., Cambray, J. & Marshall, B.E. 2007. Oreochromis placidus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 09 February 2012. |
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