Overview
Comprehensive Description
Biology
Inhabits lakes and rivers (Ref. 4967).
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Paugy, D. 1984 Characidae. p. 140-183. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 5331)
http://www.fishbase.org/references/FBRefSummary.php?id=5331&speccode=11080
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Distribution
Range Description
This species is endemic to eastern Africa. It is found in Kingani, Wami, Ruvu, Rufiji and Kilombero Rivers (Paugy 1984).
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Africa: coastal rivers of Tanzania (Kingani, Wami, Ruvu, Rufiji, Kilombero) (Ref. 5331).
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Paugy, D. 1984 Characidae. p. 140-183. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 5331)
http://www.fishbase.org/references/FBRefSummary.php?id=5331&speccode=11080
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Physical Description
Morphology
Dorsal spines (total): 0; Dorsal soft rays (total): 9 - 11; Analspines: 0; Analsoft rays: 22 - 27; Vertebrae: 42 - 44
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Murray, A.M. 2004 Osteology and morphology of the characiform fish Alestes stuhlmannii Pfeffer, 1896 (Alestidae) from the Rufiji River basin, East Africa. J. Fish Biol. 65:1412-1430. (Ref. 79648)
http://www.fishbase.org/references/FBRefSummary.php?id=79648&speccode=11098
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Size
Max. size
21.0 cm SL (male/unsexed; (Ref. 4967))
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Eccles, D.H. 1992 FAO species identification sheets for fishery purposes. Field guide to the freshwater fishes of Tanzania. Prepared and published with the support of the United Nations Development Programme (project URT/87/016). FAO, Rome. 145 p. (Ref. 4967)
http://www.fishbase.org/references/FBRefSummary.php?id=4967&speccode=11098
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Diagnostic Description
Alestes stuhlmannii is fusiform with a terminal mouth and a snout that becomes more blunt in larger individuals (Ref. 79648). The dorsal fin is in the middle of the back, and the adipose fin is closer to the caudal than to the dorsal fin (Ref. 79648). The anal fin base is much longer than the dorsal fin base (Ref. 79648). The body is covered with large cycloid scales which extend onto the bases of the anal and caudal fins; there are no scales on the head and none on the supraoccipital crest (Ref. 79648). In preserved specimens, the flanks are usually darker dorsally than ventrally; a thin, dark line runs along the flank from the posterior edge of the opercle to the base of the caudal fin rays; it does not follow the lateral line and is not confined to a single scale row (Ref. 79648).
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Murray, A.M. 2004 Osteology and morphology of the characiform fish Alestes stuhlmannii Pfeffer, 1896 (Alestidae) from the Rufiji River basin, East Africa. J. Fish Biol. 65:1412-1430. (Ref. 79648)
http://www.fishbase.org/references/FBRefSummary.php?id=79648&speccode=11098
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Ecology
Habitat
Habitat and Ecology
Habitat and Ecology
Systems
No information available.
Systems
- Freshwater
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
LC
Least Concern
Red List Criteria
Version
3.1
Year Assessed
2010
Assessor/s
Hanssens, M. & Snoeks, J.
Reviewer/s
Snoeks, J. & Darwall, W.
Contributor/s
Justification
This species is widespread in major river basins in Tanzania with no major threats identified. It is therefore assessed as Least Concern.
History
- 2006Least Concern(IUCN 2006)
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Trends
Population
Population
Population Trend
No information available.
Population Trend
Unknown
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Threats
Threats
Major Threats
No information available.
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Least Concern (LC)
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IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
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Management
Conservation Actions
Conservation Actions
No information available.
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Wikipedia
Alestes stuhlmannii
Alestes stuhlmannii is a species of fish in the Alestidae family. It is endemic to the Ulanga River in Tanzania.[1][2]
References
- Hanssens, M & Snoeks, J. 2005. Alestes stuhlmannii. 2006 IUCN Red List of Threatened Species. Downloaded on 3 August 2007.
- ^ RUBADA, 1981, Rufiji Basin Study Programme. Study of fisheries in the proposed Steiglers gorge reservoir and the Ulanga floodplain. Atkins land and water management, Cambridge, England.
- ^ Charlwood, J, D., and Utzinger, Jurg, 1997. Fishery Methods and Fish Diversity in the Ulanga River in South-Eastern Tanzania. Afr. J. Hydrobiol. Fish Vol, No 7, p. 55-64.
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