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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Lithognathus: Greek, lithos = stone + Greek, gnathos = jaw (Ref. 45335).
More on author: Cuvier.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; saumâtre benthopélagique; amphidrome (Ref. 51243); profondeur ? - 150 m (Ref. 27121). Subtropical; 22°S - 31°S
Southeast Atlantic: known only from the Orange River mouth to Natal, South Africa.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 54.0  range ? - ? cm
Max length : 200 cm TL mâle / non sexé; (Ref. 3198); common length : 65.0 cm TL mâle / non sexé; (Ref. 3507)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 11; Rayons mous dorsaux (Total) : 10; Épines anales: 3; Rayons mous anaux: 8. Silvery in color, crossbars fade with age.
Body shape (shape guide): fusiform / normal.
Found over sandy substrate, in estuaries and oceanic waters. Enters lagoons (Ref. 3198). Feeds bottom invertebrates, including worms, crabs and shrimp (Ref. 27121). Spawns in the sea but uses estuaries as nursery grounds. Prime angling fish. Important food fish. Sold fresh and whole in markets.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Bauchot, M.-L. and M.M. Smith, 1984. Sparidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51). volume 4. [var. pag.] FAO, Rome. (Ref. 3507)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 12.5 - 24.1, mean 15.7 °C (based on 28 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00934 - 0.02568), b=3.04 (2.90 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Réf.
69278): 3.1 ±0.1 se; based on diet studies.
Generation time: 10.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Résilience (Réf.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.1).
Vulnérabilité de la pêche (Ref.
59153): High to very high vulnerability (72 of 100).
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Vulnérabilité climatique (Ref.
125649): Very high vulnerability (78 of 100).
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Nutriments (Ref.
124155): Calcium = 24.8 [12.9, 45.8] mg/100g; Iron = 0.664 [0.364, 1.136] mg/100g; Protein = 18.5 [16.9, 20.3] %; Omega3 = 0.302 [0.191, 0.497] g/100g; Selenium = 45.7 [21.7, 85.5] μg/100g; VitaminA = 6.95 [2.03, 19.38] μg/100g; Zinc = 0.722 [0.505, 1.031] mg/100g (wet weight);