Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển; Mức độ sâu ? - 70 m (Ref. 2683). Subtropical; 42°N - 13°S, 19°W - 36°E
Eastern Atlantic: off Morocco to Angola (Ref. 4225, 57392), including southern parts of the Mediterranean (Ref. 4225).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 100.0 cm TL con đực/không giới tính; (Ref. 27584); common length : 60.0 cm TL con đực/không giới tính; (Ref. 3397); Khối lượng cực đại được công bố: 3.2 kg (Ref. 40637)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 8; Các vây lưng mềm (tổng cộng) : 20 - 22; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 18 - 20. Diagnosis: body deep and strongly compressed, becoming elongate with growth (body depth comprised from 1.3 to 1.8 times in fork length); dorsal profile abrupt; mouth large, upper jaw ending below posterior half of eye; dorsal fin with 7 spines, becoming resorbed and indistinct at about 150 mm fork length, followed by 1 spine and 20-22 soft rays; anal fin with 2 spines, becoming resorbed and indistinct at very small sizes, followed by 1 spine and 18-20 soft rays; 1st dorsal- and anal-fin rays extremely long and filamentous in young individuals, becoming shorter in adults; pectoral fins falcate, longer than head; pelvic fins elongate in young individuals; scales very small and cycloid, hardly visible, absent on some parts of head and body; straight part of lateral line with 4-20 scutes; base of caudal fin with bilateral paired keels (Ref. 57392).
Coloration: silvery, with a faint metallic-blue tint on upper third of body and head; juveniles with 5 dark crossbars on sides (Ref. 57392).
Adults solitary in coastal water near the bottom to at least 50 m and strong swimmers (Ref. 7079, 57392). Juveniles usually pelagic and drifting, sometimes occurring in brackish water (Ref. 4225, 57392). Feed on squid and other fishes (Ref. 4233). Eggs are pelagic (Ref. 4233).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Smith-Vaniz, W.F., J.-C. Quéro and M. Desoutter, 1990. Carangidae. p. 729-755. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 7097)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: buôn bán nhỏ; cá để chơi: đúng
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Estimates based on models
Preferred temperature (Ref.
123201): 18.6 - 27.9, mean 24.4 °C (based on 150 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01372 - 0.04599), b=2.83 (2.67 - 2.99), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.6 ±0.59 se; based on food items.
Thích nghi nhanh (Ref.
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (Assuming tm=3-4).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (69 of 100).
Nutrients (Ref.
124155): Calcium = 61.2 [24.9, 118.5] mg/100g; Iron = 1.32 [0.68, 2.80] mg/100g; Protein = 19.6 [18.3, 20.9] %; Omega3 = 0.269 [0.144, 0.501] g/100g; Selenium = 25.9 [12.2, 56.9] μg/100g; VitaminA = 5.16 [1.20, 19.90] μg/100g; Zinc = 0.558 [0.374, 0.860] mg/100g (wet weight);
