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Centrarchiformes (Basses) >
Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
Eponymy: Peão Lopes of the Lourenco Marques Museum was described as “…a most able collector and technician”. He collected eight of the records of fishes in or near Delagoa Bay that Smith discussed in his paper, presumably including the knifejaw holotype. (Ref. 128868), visit book page.
More on author: Smith.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 20 - 130 m. Tropical
Western Indian Ocean: Delagoa Bay in Mozambique northwards (Ref. 4387), but the northern limit of its range in not known (Ref. 9660).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 75.0 cm TL mâle / non sexé; (Ref. 9660); common length : 50.0 cm TL mâle / non sexé; (Ref. 9660)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 11; Rayons mous dorsaux (Total) : 20 - 21; Épines anales: 3; Rayons mous anaux: 16. Adults dark bronzy brown in color.
Body shape (shape guide): short and / or deep.
Inhabits reef areas and feeds on benthic invertebrates.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Heemstra, P.C., 1984. Oplegnathidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing area 51). Vol. 3, FAO, Rome. (Ref. 9660)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 22.9 - 26.6, mean 25.6 °C (based on 16 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.5 ±0.37 se; based on food items.
Vulnérabilité de la pêche (Ref.
59153): Moderate to high vulnerability (50 of 100).
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