Common names from other countries
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Carangiformes (Jacks) >
Carangidae (Jacks and pompanos) > Caranginae
Etymology: Trachurus: Greek, trachys, -eia, -ys = rough + Greek, oura = tail (Ref. 45335); symmetricus: From symmetricus which means regularly formed - referring to the rough tail (Ref. 6885).
More on author: Ayres.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien pelagic-oceanic; oceanodroom (Ref. 87829); diepte 0 - 400 m. Subtropical; 65°N - 13°N
Eastern Pacific: southeastern Alaska to southern Baja California, Mexico and the Gulf of California; reported from Acapulco in Mexico and the Galapagos Islands.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - 31 cm
Max length : 81.0 cm TL mannelijk / geslacht onbekend; (Ref. 2850); common length : 55.0 cm TL mannelijk / geslacht onbekend; (Ref. 9283); max. gerapporteerde leeftijd: 30 Jaren (Ref. 766)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 8 - 9; Dorsale zachte stralen (totaal) : 28 - 38; Anale stekels: 1 - 2; Anale zachte stralen: 22 - 33; Wervels: 23 - 25. Small specimens may have an additional forward-directed spine at first dorsal origin (embedded in larger specimens).
Body shape (shape guide): fusiform / normal.
Adults are often found offshore, up to 500 miles from the coast (Ref. 9283). Are considered as one of the straddling stocks in the northeast Pacific (Ref. 87829). They form large schools (Ref. 2850). Young frequently occur in school near kelp and under piers (Ref. 2850). They feed mainly on small crustaceans and fish larvae (Ref. 9283). Large individuals often move inshore and north in the summer (Ref. 2850). Marketed fresh, smoked, canned and frozen; eaten fried, broiled and baked (Ref. 9988).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; sportvis: ja
Tools
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Schattingen op basis van modellen
Gewenste temperatuur (Ref.
123201): 7 - 16.2, mean 9.2 °C (based on 50 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00579 - 0.01576), b=2.96 (2.82 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.2 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.09-0.21;tm=2-3; tmax=30; Fec<50,000).
Kwetsbaarheid van de visserij (Ref.
59153): High to very high vulnerability (66 of 100).
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Kwetsbaarheid voor het klimaat (Ref.
125649): Moderate vulnerability (38 of 100).
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Voedingsstoffen (Ref.
124155): Calcium = 256 [162, 427] mg/100g; Iron = 4.83 [2.91, 8.14] mg/100g; Protein = 19.8 [19.0, 20.6] %; Omega3 = 0.337 [0.227, 0.527] g/100g; Selenium = 34.8 [19.9, 61.1] μg/100g; VitaminA = 6.65 [1.75, 28.82] μg/100g; Zinc = 1.51 [1.11, 2.16] mg/100g (wet weight);
