Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale. 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 / Size / Peso / Age
Maturity: Lm 30.0, range 27 - ? cm
Max length : 50.0 cm SL maschio/sesso non determinato; (Ref. 9403); common length : 18.0 cm SL maschio/sesso non determinato; (Ref. 9403); peso massimo pubblicato: 2.6 kg (Ref. 4362)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 6 - 8; Raggi dorsali molli (totale) : 20 - 25; Spine anali: 3; Raggi anali molli: 23 - 26.
Inhabits coastal waters with rocky substrate. Feeds on algae and the associated invertebrates (Ref. 5213).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
van der Elst, R., 1981. A guide to the common sea fishes of southern Africa. C. Struik, Cape Town. 367 p. (Ref. 3670)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: commerciale; Pesce da pesca sportiva: si
Strumenti
Special reports
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Fonti Internet
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=0.01622 (0.00726 - 0.03621), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (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.
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (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);