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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); kingsleyae: Dedicated to the British explorer Mary Kingsley (1862–1900), who collected several species of fishes in the area, including a few specimens of Hepsetus, as part of her commitment to A. Günther of the British Museum of Natural History (BMNH, London)(Ref. 93279)..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce pélagique. Tropical; 0°S - 1°S, 9°E - 11°E
Africa: endemic to the Ogowe River basin in Gabon; known from lakes in contact with the Ogowe main channel, or in rivers close to the lakes; not recorded from the Ngounié (Ref. 93279).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 22.0 cm SL mâle / non sexé; (Ref. 93279)
Description synthétique
Morphologie | Morphométrie
Diagnosis: distinguished from H. akawo and H. lineata by a narrower head width [26.4–35.6 (mean 33.1) v. 32.8–42.3 (37.0) and 32.8–46.7 (39.4)%HL, respectively] and its narrower internasal distance [15.6–23.3 (mean 20.6) v. 21.9–28.3 (24.7) and 21.5–29.3 (25.1)%HL, respectively]; both characters are positively allometric; distinguished from H. lineata by smaller number of lateral-line scales (45–51 v. 50–64) and higher number of gill rakers [17–23 v. 12–18 (exceptionally 20 in 1 specimen)]; distinguished from H. odoe by smaller number of lateral-line scales [45–51 v. 51–60 (exceptionally 49)] and smaller distance between nostril and lower jaw [33.2–40.9 (mean 38.2) v. 40.4–47.6 (43.1)%HL]; latter character is positively allometric; distinguished from H. cuvieri by higher number of gill rakers (17–23 v. 8–13), lower number of scales between dorsal fin and lateral line (8.5–9.5 v.10.5–11.5), lower number of scales between adipose fin and lateral line (5.5 v. 6.5–7.5) and longer snout [39.3–43.2 (mean 41.0) v. 35.5–38.8 (37.3)%HL]; latter character is positively allometric (Ref. 93279).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries:
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
Niveau trophique (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
Nutrients (Ref.
124155): Calcium = 184 [75, 446] mg/100g; Iron = 2.27 [1.12, 5.25] mg/100g; Protein = 18.4 [16.3, 20.7] %; Omega3 = 0.371 [0.145, 0.945] g/100g; Selenium = 63 [24, 215] μg/100g; VitaminA = 33.9 [12.3, 90.2] μg/100g; Zinc = 2.32 [1.62, 3.40] mg/100g (wet weight);
