Oreochromis tanganicae
– Least Concern
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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ACTINOPTERYGII
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Order:
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PERCIFORMES
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Family:
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CICHLIDAE
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Scientific Name:
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Oreochromis tanganicae
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Species Authority:
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(¨Günther, 1893)
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Assessment Information
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Red List Category & Criteria:
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LC ver 3.1 (2001)
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Year Assessed:
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2006
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Assessor/s:
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Ntakimazi, G.
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Evaluator/s:
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Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Programme)
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Justification:
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Widespread throughout Lake Tanganyika and lower reaches of its majors affluent rivers where it has no known major widespread threats.
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Geographic Range
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Range Description:
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Endemic to Lake Tanganyika where it also enters the deltas and lower reaches of its major affluent rivers, including the Rusizi and Malagarasi.
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Range Map:
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 (click for detailed map)
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Countries:
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Native:
Burundi; Congo, The Democratic Republic of the; Tanzania, United Republic of; Zambia
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Population
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Population:
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This species represent one of the most common inshore species found in the markets in the northern end of Lake Tanganyika. There has been a reported decline in the catches over the last 10 years.
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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Found in the coastal areas around lake Tanganyika (max depth: 10 m) over sand habitats, and in river mouths and lagoons. Feeds on diatoms, filamentous blue-green algae and detritus grazed from submerged surfaces.
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System:
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Freshwater
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List of Habitats:
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| 5.1 | Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls) |
| 5.4 | Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands |
| 5.5 | Wetlands (inland) - Permanent Freshwater Lakes (over 8ha) |
| 5.7 | Wetlands (inland) - Permanent Freshwater Marshes/Pools (under 8ha) |
| 5.8 | Wetlands (inland) - Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) |
| 5.13 | Wetlands (inland) - Permanent Inland Deltas |
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Threats
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Threats:
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Siltation; and over-fishing, mostly at the northern end of the lake.
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List of Threats:
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| 3.1.1 | Harvesting (hunting/gathering) - Food - Subsistence use/local trade (ongoing) |
| 6.3.7 | Pollution (affecting habitat and/or species) - Water pollution - Sediment (ongoing) |
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Conservation Actions
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Conservation Actions:
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No information available.
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List of Conservation Actions:
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| 3.9 | Research actions - Trends/Monitoring (needed) |
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Bibliography
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Bibliography:
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De Vos, L., Taverne, L. and Thys van den Audenaerde, D.F.E. 2001. L’Ichtyofaune du bassin de la Malagarasi (système du lac Tanganyika): une synthèse de la connaissance actuelle. Ann. Mus. R. Afr. Centr., Sc. Zool. 285: 117–152 Poll, M. 1953. Poissons non Cichlidae. In: Exploration Hydrobiologique du Lac Tanganika (1946–1947). Résultats scientifiques. 3(5A): 1–251. Institut Royal des Sciences Naturelles de Belgique, Brussels, Belgium. Trewavas, E. 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. Cornell University Press, New York, United States.
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