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> Centrarchiformes (Basses) > Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
More on author: Richardson.

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

marin récifal; profondeur ? - 150 m. Subtropical; 28°S -

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Western Indian Ocean: South Africa.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 90.0 cm TL mâle / non sexé; (Ref. 4387)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 12; Rayons mous dorsaux (Total) : 11 - 14; Épines anales: 3; Rayons mous anaux: 11 - 13.

Found in coastal waters down at a depth of about 150 m. Adults found near reefs, juveniles found near floating objects. Feed on benthic invertebrates and algae (Ref. 5213). May live longer than 10 years. Spawning occurs throughout the year (Ref. 57746). Rarely hooked but easily speared (Ref. 4387).

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

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

van der Elst, R., 1981. A guide to the common sea fishes of southern Africa. C. Struik, Cape Town. 367 p. (Ref. 3670)

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

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: commercial; pêche sportive: oui

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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 (Ref. 69278): 2.7 ±0.24 se; based on food items.

Résilience (Ref. 120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (tmax > 10).

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Catégorie de prix (Ref. 80766): Unknown.

Nutrients (Ref. 124155): Calcium = 19.4 [8.6, 35.0] mg/100g; Iron = 0.515 [0.294, 0.877] mg/100g; Protein = 19.3 [18.1, 20.5] %; Omega3 = 0.148 [0.083, 0.264] g/100g; Selenium = 26.6 [12.9, 56.1] μg/100g; VitaminA = 14.8 [3.5, 62.2] μg/100g; Zinc = 0.602 [0.387, 0.917] mg/100g (wet weight);

Oplegnathus conwayi Richardson, 1840