Overview

Comprehensive Description

Biology

Found in shallow water (1–2 m) with a water temperature of 21–21.5°C and a pH ranging from 5.8–6.5; riverbanks variously covered with dense, undisturbed riparian vegetation, heavily degraded urban areas and cleared agricultural area; arnivorous as suggested by the short gut and large stomach and the remnants of ants and small midges found in all specimens examined (Ref. 89102).
  • Mbimbi Mayi Munene, J.J. and M.L.J. Stiassny 2012 A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai basin) of central Africa; with a phylogeny for the genus and synonymy of Duboisialestes. Zootaxa 3166:59-68. (Ref. 89102)
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Distribution

Africa: endemic to the Kwilu River, Congo River basin (Ref. 89102).
  • Mbimbi Mayi Munene, J.J. and M.L.J. Stiassny 2012 A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai basin) of central Africa; with a phylogeny for the genus and synonymy of Duboisialestes. Zootaxa 3166:59-68. (Ref. 89102)
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 10; Analspines: 0; Analsoft rays: 21 - 23; Vertebrae: 36 - 37
  • Mbimbi Mayi Munene, J.J. and M.L.J. Stiassny 2012 A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai basin) of central Africa; with a phylogeny for the genus and synonymy of Duboisialestes. Zootaxa 3166:59-68. (Ref. 89102)
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Size

Max. size

5.7 cm SL (male/unsexed; (Ref. 89102))
  • Mbimbi Mayi Munene, J.J. and M.L.J. Stiassny 2012 A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai basin) of central Africa; with a phylogeny for the genus and synonymy of Duboisialestes. Zootaxa 3166:59-68. (Ref. 89102)
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Diagnostic Description

Alestopetersius conspectus, is distinguished from A. smykalai, A. leopoldianus, A. nigropterus, A. caudalis, and A. sp. "mbuji" in the possession of 12 (vs. 10) circumpeduncular scales (Ref. 89102). It is readily distinguished from A. brichardi, A. compressus, A. hilgendorfi, and A. tumbensis in the possession of a caudal-fin pigmentation consisting of a median black band extending to the caudal-fin margin and flanked by dense black bands in both upper and lower fin lobes (Ref. 89102). Alestopetersius bifasciatus, which shares similar caudal fin pigmentation, is distinguished from A. conspectus by the absence of a broad mid-lateral band on the body, and in tooth morphology (Ref. 89102). Mouth terminal, lower jaw prominent and slightly prognathous (Ref. 89102). Premaxilla with two teeth in outer row, each bearing five cusps, positioned opposite interspaces between and alternating with, four inner row teeth, each bearing 6-8 cusps; outermost premaxillary tooth is markedly compressed and elongate with 7 or 8 small evenly sized cusps and a low median cusp; dentary with four teeth in outer row, each bearing 6 or 7 cusps, outermost tooth smallest in jaw; no inner row teeth on dentary (Ref. 89102).In life all individuals are iridescent silver with greenish-copper reflections anterolaterally, becoming bluish on flanks and caudal peduncle; mid-lateral band is obscured anteriorly on body but clearly marked on caudal peduncle (Ref. 89102).
  • Mbimbi Mayi Munene, J.J. and M.L.J. Stiassny 2012 A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai basin) of central Africa; with a phylogeny for the genus and synonymy of Duboisialestes. Zootaxa 3166:59-68. (Ref. 89102)
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Ecology

Habitat

Environment

pelagic; freshwater; pH range: 5.8 - 6.5
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Alestopetersius conspectus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Alestopetersius conspectus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries:
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