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Carangiformes (Jacks) >
Carangidae (Jacks and pompanos) > Trachinotinae
Etymology: Trachinotus: Greek, trachys, -eia, -ys = rough + Greek,noton = back (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina; brackvatten revassocierade; djupintervall 0 - 36 m (Ref. 3277), usually 0 - 30 m (Ref. 55175). Subtropical; 42°N - 25°S, 100°W - 30°W (Ref. 55175)
Western Atlantic: Massachusetts, USA to southeastern Brazil, including Bahamas and many of the West Indies (Ref. 7251). Reports from Africa are based on misidentifications, mostly referring to T. teraia (Ref. 81654).
Length at first maturity / Size / Vikt / Age
Maturity: Lm 54.7, range 48 - ? cm
Max length : 122 cm FL hane/ej könsbestämd; (Ref. 40637); common length : 94.0 cm FL hane/ej könsbestämd; (Ref. 3277); publicerad maxvikt: 36.0 kg (Ref. 5217); rapporterad maxålder: 23 år (Ref. 42149)
Taggstrålar i ryggfenan (totalt) : 6 - 7; Mjukstrålar i ryggfenan (totalt) : 18 - 21; Taggstrålar i analfenan: 2 - 3; Mjukstrålar i analfenan: 16 - 18. Dorsal and anal fins have very long, dark anterior lobes (Ref. 26938). No scutes; a broad patch of orange-yellow on abdomen in front of anal fin; pectoral fins blackish (Ref. 13442).
Adults frequently in channels or holes, over sandy flats, around reefs, and at times over mud bottoms; usually solitary or in small schools; smaller fish tolerate brackish water. Spawn offshore (Ref. 26938). During the summer, juveniles are found in large schools especially in the surf zone along sandy beaches. Adults feed on mollusks, crabs, shrimps, and small fishes; juveniles on benthic invertebrates. Excellent food fish (Ref. 9626). Highly esteemed game fish caught on light tackle (Ref. 26938).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Vattenbruk: kommersiell; sportfisk: ja; Akvarium: Offentliga akvarier
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 23.2 - 28, mean 26.1 °C (based on 624 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02754 (0.01646 - 0.04607), b=2.85 (2.71 - 2.99), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.0 ±0.2 se; based on diet studies.
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=3; tmax=23).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
Nutrients (Ref.
124155): Calcium = 23.2 [8.6, 45.2] mg/100g; Iron = 0.618 [0.318, 1.376] mg/100g; Protein = 20.7 [18.6, 22.7] %; Omega3 = 0.167 [0.087, 0.331] g/100g; Selenium = 19 [8, 47] μg/100g; VitaminA = 11.6 [2.6, 53.6] μg/100g; Zinc = 0.494 [0.296, 0.798] mg/100g (wet weight);
