Haplochromis obliquidens

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:	Haplochromis obliquidens
Species Authority:	(Hilgendorf, 1888)

Assessment Information [top]

Red List Category & Criteria:

Vulnerable D2 ver 3.1

Year Assessed:

2010

Assessor/s:

Witte, F., de Zeeuw, M.P. & Brooks, E.

Reviewer/s:

Darwall, W. & Smith, K.

Justification:
The current population density is not known but it does still occur in Lake Victoria. The biggest threat to this species is increased hybridisation as a result of decreased water transparency. It is not known to what extent this is affecting different areas of the lake, but its current distribution is likely restricted to only a few locations, and it is therefore assessed as Vulnerable.

History:

2004	–	Near Threatened
1996	–	Endangered (Baillie and Groombridge 1996)

Geographic Range [top]

Range Description:	This species is endemic to Lake Victoria. It has been recorded in surveys carried out in Kenya, Tanzania and Uganda (Greenwood 1981).
Countries:	Native: Kenya; Tanzania, United Republic of; Uganda
Range Map:	(click map to view full version)

Population [top]

Population:	No information available.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species is restricted to areas in the littoral zone where the substrate is firm (sand, rock). The species is an epiphytic algae grazer.
Systems:	Freshwater

Threats [top]

Major Threat(s):	The main threat to this species is hybridization due to decreased water transparency (on account of eutrophication and erosion leading to increased sedimentation and runoff) interfering with mate recognition visual cues (Mrosso et al. 2003).

Major Threat(s):

The main threat to this species is hybridization due to decreased water transparency (on account of eutrophication and erosion leading to increased sedimentation and runoff) interfering with mate recognition visual cues (Mrosso et al. 2003).

Conservation Actions [top]

Conservation Actions:	None known, but the population trend of this species should continue to be monitored. Habitat restoration is required to protect the species from further degradation.

Conservation Actions:

None known, but the population trend of this species should continue to be monitored. Habitat restoration is required to protect the species from further degradation.

Citation:	Witte, F., de Zeeuw, M.P. & Brooks, E. 2010. Haplochromis obliquidens. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 09 February 2012.
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