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Euthynnus lineatus Kishinouye, 1920

Black skipjack
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Native range | All suitable habitat | Point map | Year 2050
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Euthynnus lineatus   AquaMaps   Data sources: GBIF OBIS
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Image of Euthynnus lineatus (Black skipjack)
Euthynnus lineatus
Picture by Béarez, P.

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).

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

Θαλασσινό(ά); ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 0 - 40 m (Ref. 5227).   Tropical; 39°N - 16°S, 128°W - 77°W (Ref. 168)

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Eastern Pacific: off San Simeon, California, USA southward to the Galapagos Islands and northern Peru. Two stray specimens collected in the Hawaiian Islands.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 84.0 cm FL αρσενικό/απροσδιόριστο; (Ref. 168); common length : 60.0 cm FL αρσενικό/απροσδιόριστο; (Ref. 9340); μεγ. δημοσιευμένο βάρος: 9.1 kg (Ref. 168)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 10 - 15; Μαλακές εδρικές ακτίνες: 11 - 12; Σπόνδυλοι: 37. Anterior spines of first dorsal fin much higher than those mid-way, giving the fin a strongly concave outline. Interpelvic process small and bifid. Body naked except for corselet and lateral line. Swim bladder absent. A large rounded protuberances on 31st and 32nd vertebrae. Color is generally iridescent blue with black dorsal markings composed of 3 to 5 horizontal stripes. Also with variable black or dark gray spots above the pelvic fins. Occasionally with extensive longitudinal stripes of light gray on belly; some individuals have few or no belly markings.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Occurs rarely where surface temperatures fall below 23°C. Its larvae are more frequently encountered at temperatures above 26°C and are practically confined to waters within about 240 miles off the mainland. Inhabits near the surface of coastal waters and offshore waters (Ref. 11035). Form multi-species schools with Thunnus albacares and Katsuwonus pelamis. An opportunistic predator which shares feeding pattern with other tunas and probably compete for food with other species such as yellowfin tuna, common dolphin, oriental bonito, among others.

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής : Collette, Bruce B. | Συνεργάτες

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 March 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 21.3 - 28.6, mean 26 (based on 34 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00597 - 0.02209), b=3.08 (2.92 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.8   ±0.60 se; based on food items.
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Assuming tm=2).
Fishing Vulnerability (Ref. 59153):  High vulnerability (57 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (88 of 100).
Price category (Ref. 80766):   High.