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Carangiformes (Jacks) >
Carangidae (Jacks and pompanos) > Caranginae
Etymology: Trachurus: Greek, trachys, -eia, -ys = rough + Greek, oura = tail (Ref. 45335).
Eponymy: Roy A Latham (1881–1979) of Orient, Long Island, New York, USA, was a farmer and amateur self-eductaed naturalist who collected from a very early age and continued into his late nineties! Over the years he filled the two floors and multiple rooms of [...] (Ref. 128868), visit book page.
More on author: Nichols.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; djupintervall 30 - 200 m (Ref. 5951). Subtropical; 45°N - 37°S
Western Atlantic: Canada (Ref. 5951) to Maine, USA and northern Gulf of Mexico to northern Argentina; apparently rare in the West Indies.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 12.0  range ? - ? cm
Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 7251); common length : 30.0 cm TL hane/ej könsbestämd; (Ref. 5217); publicerad maxvikt: 500.00 g (Ref. 5217)
Taggstrålar i ryggfenan (totalt) : 8; Mjukstrålar i ryggfenan (totalt) : 32; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 28. Body elongate and slightly compressed; posterior edge of upper jaw reaching to below anterior margin of eye; eye large with a well developed adipose eyelid; shallow furrow on upper margin of shoulder girdle; body except for small part behind pectoral fin covered with small cycloid scales; body dark blue dorsally, silver-white ventrally; black blotch on posterior margin of opercle; tip of snout dusky; anterior margin and tip of first dorsal fin dusky, other parts pale; second dorsal fin pale; caudal fin dusky, pectoral and pelvic fins pale (Ref. 13608).
Body shape (shape guide): fusiform / normal.
Adults are benthopelagic over continental shelves (Ref. 5217). Rare in oceanic insular areas (Ref. 5217). Juveniles associate with the jellyfish Chrysaora lactea in Southwestern Atlantic. Preyed on by juvenile comb grouper (Mycteroperca acutirostris) when protection given by the jellyfish fails (Ref. 52493). Adults are found often in schools. They feed on small invertebrates. Marketed fresh locally and considered a good food fish (Ref. 9626). In southern Brazil, stocks are found in 147 m deep water (Ref. 47377).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | 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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 9.5 - 27.1, mean 22.5 °C (based on 191 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00855 - 0.01066), b=2.97 (2.94 - 3.00), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.0 ±0.2 se; based on diet studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.16-0.36; tm=2).
Prior r = 0.55, 95% CL = 0.36 - 0.83, Based on 1 data-limited stock assessment.
Sårbarhet i fisket (Ref.
59153): Moderate vulnerability (37 of 100).
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Sårbarhet för klimatet (Ref.
125649): Low vulnerability (11 of 100).
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Näringsämnen (Ref.
124155): Calcium = 110 [48, 194] mg/100g; Iron = 1.94 [1.02, 3.58] mg/100g; Protein = 20.1 [19.1, 20.9] %; Omega3 = 0.201 [0.116, 0.339] g/100g; Selenium = 16.6 [8.3, 34.4] μg/100g; VitaminA = 63.7 [15.9, 264.8] μg/100g; Zinc = 1.65 [1.07, 2.55] mg/100g (wet weight); based on
nutrient studies.