Environment: milieu / climate zone / depth range / distribution range
Écologie
marin récifal; profondeur 10 - ? m (Ref. 5213). Subtropical; 12°S - 36°S, 10°E - 34°E
Southeast Atlantic to southwestern Indian Ocean: southern Angola to Natal, South Africa.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 34.0 range ? - ? cm
Max length : 80.0 cm TL mâle / non sexé; (Ref. 4370); poids max. publié: 6.5 kg (Ref. 4370)
Épines dorsales (Total) : 10; Rayons mous dorsaux (Total) : 18 - 19; Épines anales: 3; Rayons mous anaux: 13 - 14. Changes from black to silver almost instantly to blend with environment; occasionally mottled or with 7-9 crossbars (Ref. 4370).
Found in inshore reefs, rocky and sandy areas. Feeds on mollusks, crustaceans, and other invertebrates (Ref. 5213). Abundant in winter, breeding occurs in deeper water. Becoming scarce because of overfishing (Ref. 36731).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Smith, M.M., 1986. Coracinidae. p. 601-602. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4370)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 14.4 - 24.7, mean 16.7 °C (based on 20 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00664 - 0.03964), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.45 se; based on food items.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.13).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).
Nutrients (Ref.
124155): Calcium = 16.5 [7.8, 32.0] mg/100g; Iron = 0.449 [0.259, 0.748] mg/100g; Protein = 19.3 [18.1, 20.5] %; Omega3 = 0.155 [0.089, 0.271] g/100g; Selenium = 24.8 [11.8, 51.6] μg/100g; VitaminA = 23.6 [5.9, 90.6] μg/100g; Zinc = 0.598 [0.394, 0.888] mg/100g (wet weight);
