Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina revassocierade; djupintervall 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 / Size / Vikt / Age
Maturity: Lm 34.0  range ? - ? cm
Max length : 80.0 cm TL hane/ej könsbestämd; (Ref. 4370); publicerad maxvikt: 6.5 kg (Ref. 4370)
Taggstrålar i ryggfenan (totalt) : 10; Mjukstrålar i ryggfenan (totalt) : 18 - 19; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 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 | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; sportfisk: ja
Verktyg
Special reports
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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).
Trofisk nivå (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.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (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);