Hepsetus cuvieri, Southern African Pike : fisheries, gamefish

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Hepsetus cuvieri (Castelnau, 1861)

Southern African Pike
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Hepsetus cuvieri
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Hepsetidae (African pikes)
Etymology: Hepsetus: Greek, epsetas, -e, -on = boiled, but there is the following sentence: "oí epsetoi" = certain fishes, and also could be related to "psetta" = grouper (Ref. 45335).

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

; zoet water demersaal. Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Africa: Quanza, Cunene, Okavango, upper Zambezi and Kafue River systems; in the Congo River basin present in the southernmost part of the Kasai basin and in the lower Luapula River (Ref. 93907).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 25.0  range ? - ? cm
Max length : 37.0 cm SL mannelijk / geslacht onbekend; (Ref. 30518); max. gerapporteerde leeftijd: 5 Jaren (Ref. 2750)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 9; Anale stekels 0; Anale zachte stralen: 12. Diagnosis: Hepsetus cuvieri can be distinguished from Hepsetus odoe based on a lower total number of gill rakers on the first gill arch, being 8–13 versus 14–21; a generally higher number of scales between the dorsal fin and the lateral line, 10.5–11.5 versus 7.5–10.5; a typically higher number of scales between the adipose fin and the lateral line, 6.5–7.5 versus 4.5–6.5; and a unique colour pattern characterized by a mottled appearance of the dark brown blotches on the lateral surface of the body versus the presence of vertical brown stripes/bars in that region in Hepsetus odoe (Ref. 93907).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Prefers quiet, deep water, like channels and lagoons of large floodplains; juveniles and fry inhabit well-vegetated marginal habitats (Ref. 7248). Adults feed on fish, juveniles feed on small invertebrates and fish (Ref. 7248). Multiple spawner; breeds over the summer months; relatively short-lived, only 4-5 years; also caught with drawnets (Ref. 7248).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Builds a free-floating bubblenest.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Zengeya, T.A., E. Decru and E. Vreven, 2011. Revalidation of Hepsetus cuvieri (Castelnau, 1861) (Characiformes: Hepsetidae) from the Quanza, Zambezi and southern part of the Congo ichthyofaunal provinces. J. Nat. Hist. 45(27-28):1723-1744. (Ref. 93907)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 28 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: ; sportvis: ja
FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00208 - 0.01208), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.0   ±0.3 se; based on size and trophs of closest relatives
Generation time: 4.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (35 of 100).