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Trachurus symmetricus (Ayres, 1855)

Pacific jack mackerel
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Native range | All suitable habitat | Point map | Year 2050
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Trachurus symmetricus   AquaMaps   Data sources: GBIF OBIS
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Image of Trachurus symmetricus (Pacific jack mackerel)
Trachurus symmetricus
Picture by IGFA

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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.

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

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 400 m.   Subtropical; 65°N - 13°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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 / Weight / Age

Maturity: Lm ?  range ? - 31 cm
Max length : 81.0 cm TL male/unsexed; (Ref. 2850); common length : 55.0 cm TL male/unsexed; (Ref. 9283); max. reported age: 30 years (Ref. 766)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 28 - 38; Anal spines: 1 - 2; Anal soft rays: 22 - 33; Vertebrae: 23 - 25. Small specimens may have an additional forward-directed spine at first dorsal origin (embedded in larger specimens).

Biology     Glossary (e.g. 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Smith-Vaniz, William F. | Collaborators

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. 130435)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; gamefish: yes
FAO(Fisheries: production; publication : search) | FishSource | Sea Around Us

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
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Predators
Ecology
Ecology
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Life cycle
Reproduction
Maturities
Fecundities
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Egg(s)
Egg developments
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Larval dynamics
Distribution
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FAO areas
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BRUVS - Videos
Anatomy
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Physiology
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Swimming type
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Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
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Aquaculture profiles
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Stamps, coins, misc.
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Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 7 - 16.2, mean 9.2 (based on 50 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00587 - 0.01627), b=2.96 (2.82 - 3.10), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.2 se; based on diet studies.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (K=0.09-0.21;tm=2-3; tmax=30; Fec<50,000).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (38 of 100).
Price category (Ref. 80766):   Low.