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Carangiformes (Jacks)
鱸形目 (Jacks) >
Carangidae (Jacks and pompanos) > Trachinotinae
Etymology: Trachinotus: Greek, trachys, -eia, -ys = rough + Greek,noton = back (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水; 深度上下限 0 - 100 m (Ref. 27000). 熱帶; 20°N - 20°S
Eastern Atlantic: west coast of Africa, from Senegal to the Congo estuary (Ref. 57392).
東大西洋: 塞內加爾到安哥拉.(參考文獻 3166)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 60.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57392); common length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683)
背棘 (总数) : 7; 背的软条 (总数) : 20 - 23; 臀棘: 3; 臀鳍软条: 18 - 21. Diagnosis: body short and deep (its depth 1.8-2.6 times in fork length), lozenge-shaped and strongly compressed; front of head arched; snout rounded; upper jaw extending almost to below hind margin of eye; 11-13 gill rakers on lower limb of first gill arch (Ref. 57392). 2 dorsal fins, 1st with 6 spines, 2nd with 1 spine and 20-23 soft rays; anal fin with 2 short, detached spines followed by 1 spine and 18-21 soft rays (Ref. 57392, 81654). Lobes of soft dorsal and anal fins strongly developed and falcate, longer than head at sizes over 10 cm (Ref. 57392), dorsal fin lobe 1.8-3.2 times in fork length (Ref. 81654). Pectoral fins shorter than head; scales small, cycloid and partially embedded in skin; lateral line scarcely arched over pectoral fins, without scutes (Ref. 57392). 4-6 (usually 5) black spots distributed all along lateral line (in specimens longer than 7-9 cm fork length) (Ref. 57392, 81654).
Coloration: back greenish, sides silvery, with 4-6 (usually 5) dark spots regularly spaced along lateral line, 1st as a vertical line, others oval to circular and becoming progressively smaller backwards; dorsal- and anal-fin lobes dark, caudal fin dark, but light-edged distally; these spots absent or indistinct in juveniles smaller than 100 mm (Ref. 57392).
Coastal marine species (Ref. 2683, 57392) occurring down to 100 m depth (Ref. 57392), frequently entering estuaries (Ref. 2683, 57392) and ascending lower courses of rivers (Ref. 57392). Maximum length possibly up to 100 cm (Ref. 57392).
栖息于沿岸水域与河口。 (参考文献 2683)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
東大西洋: 塞內加爾到安哥拉.(參考文獻 3166)
Smith-Vaniz, W.F. and F.H. Berry, 1981. Carangidae. In W. Fischer, G. Bianchi and W.B. Scott (eds.) FAO species identification sheets for fishery purposes. Eastern Central Atlantic (fishing areas 34, 47 (in part) . Vol. 1. (Ref. 3195)
人类利用
渔业: 低经济
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特别资料
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Estimates based on models
Preferred temperature (Ref.
123201): 19.2 - 28, mean 26.2 °C (based on 100 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00737 - 0.03739), b=2.76 (2.58 - 2.94), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
Nutrients (Ref.
124155): Calcium = 120 [53, 258] mg/100g; Iron = 1.39 [0.74, 2.96] mg/100g; Protein = 19.1 [17.1, 21.2] %; Omega3 = 0.23 [0.12, 0.45] g/100g; Selenium = 49.9 [21.8, 111.1] μg/100g; VitaminA = 10.3 [2.6, 37.9] μg/100g; Zinc = 0.987 [0.635, 1.556] mg/100g (wet weight);
