Tilapia busumana

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	CICHLIDAE

Scientific Name:	Tilapia busumana
Species Authority:	(Günther, 1903)

Assessment Information [top]

Red List Category & Criteria:	Vulnerable B1ab(iii) ver 3.1
Year Published:	2010
Assessor/s:	Entsua-Mensah, M. & Lalèyè, P.
Reviewer/s:	Snoeks, J., Darwall, W. & Smith, K.
Contributor/s:
Justification: Known from seven locations and has an extent of occurrence less than 20,000 km². The population is declining. Its main threats stem from deforestation and poor agricultural practices around Lake Bosumtwi. Resultant increases in sediment loads and leaching of pesticides and other agrochemicals may pose threats to the health of the fish. Other threats include aquatic weeds and effluents from mining activities in the upper reaches of these coastal rivers especially the Ankobra, Pra and Ofin. These effluents may contain heavy metals like arsenic, mercury and compounds like cyanide. Timber felling is an especially important threat in the Tano. Another major threat is pollution of the water bodies by inadequately treated human waste and by domestic discharges arising from increasing residential developments. The species qualifies for Vulnerable status.

Geographic Range [top]

Range Description:	This species is known from southwestern Ghana and Southeastern Cote d’Ivoire (basins of the Pra, Tano and Bia) and Lake Bosumtwi in Ghana.
Countries:	Native: Côte d'Ivoire; Ghana
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	No data available on population trends.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Adapted to living in fast-flowing rivers with rapids. This is a demersal species.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Threats to this fish species may stem from deforestation and bad agricultural practices around Lake Bosumtwi. Resultant increases in sediment loads and leaching of pesticides and other agrochemicals may pose threats to the health of the fish. Other threats include invasive aquatic weeds and effluents from mining activities in the upper reaches of these coastal rivers especially the Ankobra, Pra and Ofin. These effluents may contain heavy metals like arsenic, mercury and compounds like cyanide. Timber felling is an important threat in the Tano. Another major threat is pollution of the water bodies by inadequately treated human waste and domestic discharges arising from increasing residential developments.

Major Threat(s):

Threats to this fish species may stem from deforestation and bad agricultural practices around Lake Bosumtwi. Resultant increases in sediment loads and leaching of pesticides and other agrochemicals may pose threats to the health of the fish. Other threats include invasive aquatic weeds and effluents from mining activities in the upper reaches of these coastal rivers especially the Ankobra, Pra and Ofin. These effluents may contain heavy metals like arsenic, mercury and compounds like cyanide. Timber felling is an important threat in the Tano. Another major threat is pollution of the water bodies by inadequately treated human waste and domestic discharges arising from increasing residential developments.

Conservation Actions [top]

Conservation Actions:	There is a conservation policy in place in Ghana (Inland fisheries policy; Wetlands Management Strategy). Habitat restoration and trends and monitoring are needed.

Conservation Actions:

There is a conservation policy in place in Ghana (Inland fisheries policy; Wetlands Management Strategy). Habitat restoration and trends and monitoring are needed.

Citation:	Entsua-Mensah, M. & Lalèyè, P. 2010. Tilapia busumana. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 22 May 2013.
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