分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Lithognathus: Greek, lithos = stone + Greek, gnathos = jaw (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 底中水层性; 非产卵性溯降河的 (Ref. 51243); 深度上下限 ? - 150 m (Ref. 27121). ; 22°S - 31°S
Southeast Atlantic: known only from the Orange River mouth to Natal, South Africa.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 54.0 range ? - ? cm
Max length : 200 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3198); common length : 65.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3507)
背棘 (总数) : 11; 背的软条 (总数) : 10; 臀棘: 3; 臀鳍软条: 8. Silvery in color, crossbars fade with age.
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.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
世界自然保护联盟红皮书 (Ref. 130435)
濒危 (EN) (A2bcd; B2ab(ii,v)); Date assessed: 04 December 2009
人类利用
渔业: 低经济; 游钓鱼种: 是的
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特别资料
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Estimates based on models
Preferred temperature (Ref.
123201): 12.5 - 24.1, mean 15.7 °C (based on 28 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00939 - 0.02556), b=3.04 (2.90 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
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.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (K=0.1).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (78 of 100).
Nutrients (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);
