Diplotaxodon argenteus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	CICHLIDAE

Scientific Name:	Diplotaxodon argenteus
Species Authority:	Trewavas, 1935

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2006
Assessor/s:	Kasembe, J.
Reviewer/s:	Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Programme)
Justification: Endemic to Lake Malawi. Widespread distribution with no major widespread threats identified.

Geographic Range [top]

Range Description:	Endemic to Lake Malawi. It is common in the southern part of the lake although found throughout.
Countries:	Native: Malawi; Mozambique; Tanzania, United Republic of
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	No information available.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species occurs in trawl catches from 34–114 m throughout the southeastern arm of the lake and from 50-125m in the southwestern arm of the lake. It may be a mid-water spawner, in the south western arm 60% of breeding males were caught at 75 m while ripe females were caught between 75-125 m. In the southwestern arm fecundity for this species ranged from 25–53 for females weighing between 55–139 g and the average size at maturity was 14 cm SL. It occurs as bycatch in the mid water trawl catches and also occurs in the catches of deep-water demersal trawls as well as chilimira nets and handlines. Max. size: 20 cm TL.
Systems:	Freshwater

Habitat and Ecology:

This species occurs in trawl catches from 34–114 m throughout the southeastern arm of the lake and from 50-125m in the southwestern arm of the lake. It may be a mid-water spawner, in the south western arm 60% of breeding males were caught at 75 m while ripe females were caught between 75-125 m. In the southwestern arm fecundity for this species ranged from 25–53 for females weighing between 55–139 g and the average size at maturity was 14 cm SL. It occurs as bycatch in the mid water trawl catches and also occurs in the catches of deep-water demersal trawls as well as chilimira nets and handlines. Max. size: 20 cm TL.

Systems:

Freshwater

Threats [top]

Major Threat(s):	Potential over-fishing.

Major Threat(s):

Potential over-fishing.

Conservation Actions [top]

Conservation Actions:	None.

Conservation Actions:

None.

Bibliography [top]

	Duponchelle, F., Ribbink, A.J., Msukwa, A., Mafuka, J. and Mandere, D. 2000. Depth distribution and breeding patterns of the demersal species most commonly caught by trawling in the South West Arm of Lake Malawi. In: F. Duponchelle & A.J. Ribbink (eds). Fish Ecology Report. Lake Malawi/Nyasa/Niassa Biodiversity Conservation Project. pp. 15–168. Eccles, D.H. and Trewavas, E. 1989. Malawian cichlid fishes. The classification of some Haplochromine genera. Lake Fish Movies, Herten, Germany. IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006. Turner, G. 1995. Offshore Cichlids of Lake Malawi. Cichlid Press, Lauenau, Germany.

Duponchelle, F., Ribbink, A.J., Msukwa, A., Mafuka, J. and Mandere, D. 2000. Depth distribution and breeding patterns of the demersal species most commonly caught by trawling in the South West Arm of Lake Malawi. In: F. Duponchelle & A.J. Ribbink (eds). Fish Ecology Report. Lake Malawi/Nyasa/Niassa Biodiversity Conservation Project. pp. 15–168.

Eccles, D.H. and Trewavas, E. 1989. Malawian cichlid fishes. The classification of some Haplochromine genera. Lake Fish Movies, Herten, Germany.

IUCN. 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 04 May 2006.

Turner, G. 1995. Offshore Cichlids of Lake Malawi. Cichlid Press, Lauenau, Germany.

Citation:	Kasembe, J. 2006. Diplotaxodon argenteus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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