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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).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
Africa: coastal basins from the Sanaga in Cameroon to the Chiloango in the Democratic Republic of the Congo (Ref. 93279). Also in the Dja River in Cameroon (Ref. 93279) and the middle Congo River basin in the Democratic Republic of the Congo (Ref. 108775).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 28.3 cm SL hane/ej könsbestämd; (Ref. 93279)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Diagnosis: Hepsetus lineatus can be distinguished from H. kingsleyae by a larger number of lateral line scales, 50–64 vs. 45–51, and lower number of gill rakers, 12–18, exceptionally 20 in one specimen, vs. 17–23; and by a larger head width, 32.8–46.7 vs. 26.4–35.6% of head length, and larger internasal distance, 21.5–29.3 vs. 15.6–23.3% of head length; the latter two characters are positively allometric (Ref. 93279). Hepsetus lineatus can only be distinguished from H. akawo by a larger number of lateral line scales, 50–64 vs. 43–51, and a smaller number of gill rakers, 12–18, exceptionally up to 20, vs. 17–23 (Ref. 93279). Hepsetus lineatus can be distinguished from H. odoe by a combination of a large internasal distance, 21.5–29.3 vs. 19.5–25.3% of head length, and a small distance between nostril and lower jaw, 36.8–44.4 vs. 40.4–47.6% of head length; both latter characters are positively allometric (Ref. 93279). Hepsetus lineatus can be distinguished from H. cuvieri by a higher number of gill rakers, 12–20 vs. 8–13, a lower number of scales between the dorsal fin and lateral line, 7.5–9.5 vs. 10.5–11.5, a lower number of scales between the adipose fin and lateral line, 4–5.5 vs. 6.5–7.5, and also by a greater head width, 32.8–46.7 vs. 27.8–40.4% of head length, and smaller internasal distance, 21.5–29.3 vs. 27.8–40.4% of head length; latter two characters positively allometric (Ref. 93279).
Body shape (shape guide): elongated.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Decru, E., E. Vreven and J. Snoeks, 2013. A revision of the Lower Guinean Hepsetus species (Characiformes; Hepsetidae) with the description of Hepsetus kingsleyae sp. nov. J. Fish Biol. 82(4):1351-1375. (Ref. 93279)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00468 (0.00196 - 0.01118), b=3.17 (2.97 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low to moderate vulnerability (31 of 100). 🛈 |