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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.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser; brackwasser benthopelagisch; amphidrom (Ref. 51243); tiefenbereich ? - 150 m (Ref. 27121). Subtropical; 22°S - 31°S
Southeast Atlantic: known only from the Orange River mouth to Natal, South Africa.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 54.0  range ? - ? cm
Max length : 200 cm TL Männchen/unbestimmt; (Ref. 3198); common length : 65.0 cm TL Männchen/unbestimmt; (Ref. 3507)
Rückenflossenstacheln (insgesamt) : 11; Rückenflossenweichstrahlen (insgesamt) : 10; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 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.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja
Tools
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Trophische Ebene (Ref. 69278) |
3.1 ±0.1 se; based on diet studies. |
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Generation time |
10.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Widerstandsfähigkeit (Ref. 120179) |
niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.1). |
Anfälligkeit der Fischerei (Ref. 59153) |
High to very high vulnerability (72 of 100). 🛈 |
Klimaanfälligkeit (Ref. 125649) |
Very high vulnerability (78 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Low.
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Nährstoffe (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); |