Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal. Subtropical; 25°S - 35°S, 18°E - 34°E
Western Indian Ocean: Inhaca Island, Mozambique to False Bay, South Africa (Ref. 4371).
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 30.0, range 27 - ? cm
Max length : 50.0 cm SL mâle / non sexé; (Ref. 9403); common length : 18.0 cm SL mâle / non sexé; (Ref. 9403); poids max. publié: 2.6 kg (Ref. 4362)
Épines dorsales (Total): 6 - 8; Rayons mous dorsaux (Total): 20-25; Épines anales 3; Rayons mous anaux: 23 - 26
Inhabits coastal waters with rocky substrate. Feeds on algae and the associated invertebrates (Ref. 5213).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
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Estimates based on models
Preferred temperature (Ref.
123201): 18 - 25, mean 21.9 °C (based on 61 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00740 - 0.03723), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 2.8 ±0.25 se; based on food items.
Generation time: 4.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.22; tmax=10, but probably greater).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (36 of 100).
Nutrients (Ref.
124155): Calcium = 77.5 [42.3, 129.4] mg/100g; Iron = 1.03 [0.59, 1.73] mg/100g; Protein = 18.4 [17.4, 19.5] %; Omega3 = 0.22 [0.14, 0.36] g/100g; Selenium = 25.1 [12.1, 50.4] μg/100g; VitaminA = 7.24 [2.05, 24.89] μg/100g; Zinc = 0.76 [0.54, 1.11] mg/100g (wet weight);