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Distichodus schenga Peters, 1852

Chessa
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Image of Distichodus schenga (Chessa)
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drawing shows typical species in Distichodontidae.


Zambia country information

Common names: Chessa
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Losse, G.F., 1998
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the middle Zambezi system (Ref. 52193), including Lake Kariba, where it is a species of primary economic importance (Ref. 27602). Also Ref. 894.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/za.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Skelton, P.H., 2001
National Database:

Common names from other countries

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).
  More on author: Peters.

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce pélagique.   Tropical; 11°S - 20°S

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Africa: middle and lower Zambezi drainages, Pungwe and Buzi rivers in Mozambique (Ref. 52193, 122090).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm SL mâle / non sexé; (Ref. 52193); poids max. publié: 6.4 kg (Ref. 52193)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Épines anales: 0. Diagnosis: snout short; mouth inferior; head about 5 times in fork length; juveniles with 12-16 dark vertical bars (Ref. 52193).

Biologie     Glossaire (ex. epibenthic)

Favors large rivers, shoaling over both rock and sand; omnivorous, preferring algae and plant matter to snails, shrimps, and small fish; breeds in summer during the rainy period, moving upstream to suitable spawning sites (Ref. 7248, 52193).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. 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. 7094)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 01 May 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

Pêcheries: intérêt commercial mineur; pêche sportive: oui
FAO(Publication : search) | FishSource |

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Diet compositions
Food consumptions
Food rations
Prédateurs
Ecology
Écologie
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Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Fréquences de longueurs
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Abundances
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Visual pigment(s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00696 - 0.03289), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100).
Catégorie de prix (Ref. 80766):   Unknown.