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Trachurus symmetricus (Ayres, 1855)

Pacific jack mackerel
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Image of Trachurus symmetricus (Pacific jack mackerel)
Trachurus symmetricus
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Perciformes (Perch-likes) > 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.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; marina; havsvandrande (Ref. 51243); djupintervall 0 - 400 m.   Subtropical; 65°N - 13°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eastern Pacific: southeastern Alaska to southern Baja California, Mexico and the Gulf of California; reported from Acapulco in Mexico and the Galapagos Islands.

Size / Vikt / Age

Maturity: Lm ?  range ? - 31 cm
Max length : 81.0 cm TL hane/ej könsbestämd; (Ref. 2850); common length : 55.0 cm TL hane/ej könsbestämd; (Ref. 9283); rapporterad maxålder: 30 år (Ref. 766)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 8 - 9; Mjukstrålar i ryggfenan (totalt): 28-38; Taggstrålar i analfenan 1-2; Mjukstrålar i analfenan: 22 - 33; Ryggkotor: 23 - 25. Small specimens may have an additional forward-directed spine at first dorsal origin (embedded in larger specimens).

Biologi     Ordlista (t.ex. epibenthic)

Adults are often found offshore, up to 500 miles from the coast (Ref. 9283). 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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator : Smith-Vaniz, William F. | Medarbetare

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)

IUCN Red List Status (Ref. 120744)

  Least Concern (LC) ; Date assessed: 30 April 2008

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fiskeri: kommersiell; sportfisk: ja
FAO(fiskeri: produktion; publication : search) | FishSource | Sea Around Us

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
Sjukdomar
Behandling
Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

Verktyg

Special reports

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Internet-källor

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(Go, sök) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7 - 16.2, mean 9.2 (based on 50 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00603 - 0.01584), b=2.95 (2.81 - 3.09), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.6   ±0.2 se; Based on diet studies.
Resiliens (Ref. 69278):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.09-0.21;tm=2-3; tmax=30; Fec<50,000).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100) .
Price category (Ref. 80766):   Low.