Auxis thazard, Frigate tuna : fisheries, gamefish

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Auxis thazard (Lacepède, 1800)

Frigate tuna
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Image of Auxis thazard (Frigate tuna)
Auxis thazard
Picture by Randall, J.E.

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

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Auxis: Greek, auxis = a variety of tunna (Ref. 45335).
More on author: Lacepède.

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

Θαλασσινό(ά); ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 50 - ? m (Ref. 9340). Subtropical; 27°C - 28°C; 61°N - 51°S, 180°W - 180°E

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Atlantic,Mediterranean, Indian and Pacific (Western Central). Eastern Pacific population recognized as subspecies Auxis thazard brachydorax (Ref. 32349). Many authors have used the name Auxis thazard as including Auxis rochei in the belief that there was only a single worldwide species of Auxis. Highly migratory species.

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm 29.5, range 29 - ? cm
Max length : 65.0 cm FL αρσενικό/απροσδιόριστο; (Ref. 29114); common length : 60.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 47377); μεγ. δημοσιευμένο βάρος: 1.7 kg (Ref. 40637); μεγ. αναφερόμενη ηλικία: 5 έτη (Ref. 29114)

Short description Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά): 10 - 12; Μαλακές ραχιαίες ακτίνες (συνολικά): 10-13; Εδρικές άκανθες 0; Μαλακές εδρικές ακτίνες: 10 - 14. This species is distinguished by the following characters: a robust body, elongated and rounded; teeth small and conical, in a single series; total gill rakers on first gill arch 36-42; dorsal fins 2, D1 X-XII, separated from the second by a large interspace (at least equal to length of first dorsal-fin base), second dorsal fin followed by 8 finlets; anal fin followed by 7 finlets; pectoral fins short, but reaching past vertical line from anterior margin of scaleless area above corselet; a large single-pointed flap (interpelvic process) between pelvic fins; body naked except for the corselet, which is well developed and narrow in its posterior part (no more than 5 scales wide under second dorsal-fin origin); a strong central keel on each side of caudal-fin base between 2 smaller keels. Colour of back bluish, turning to deep purple or almost black on the head; a pattern of 15 or more narrow, oblique to nearly horizontal, dark wavy lines in scaleless area above lateral line; belly white; pectoral and pelvic fins purple, inner sides black (Ref 9684).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Adults are epipelagic in neritic and oceanic waters (Ref. 9340). They feed on small fish, squids, planktonic crustaceans (megalops), and stomatopod larvae (Ref. 5213). Because of their abundance, they are considered an important element of the food web, particularly as forage for other species of commercial interest. They are preyed upon by larger fishes, including other tunas (Ref. 9987). Marketed fresh and frozen (Ref. 9340) and also utilized dried or salted, smoked and canned (Ref. 9987).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

In correlation with temperature and other environmental changes, the spawning season varies with areas, but in some places it may even extend throughout the year.

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

Collette, B.B. and C.R. Aadland, 1996. Revision of the frigate tunas (Scombridae, Auxis), with descriptions of two new subspecies from the eastern Pacific. Fish. Bull. 94(3):423-441. (Ref. 32349)

IUCN Red List Status (Ref. 126983)

  Least Concern (LC) ; Date assessed: 14 September 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

αλιεία: πολύ εμπορικό; αλιεία αναψυχής: ναί

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Διαδικτυακές πηγές

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Γένος, Είδη | DiscoverLife | ECOTOX | FAO - αλιεία: landings, species profile; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Εθνικές βάσεις δεδομένων | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Δέντρο Ζωής | Wikipedia: Go, αναζήτηση | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 13.8 - 27.1, mean 22 °C (based on 986 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00848 - 0.01126), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  4.4   ±0.4 se; based on diet studies.
Generation time: 1.5 (1.1 - 2.1) years. Estimated as median ln(3)/K based on 13 growth studies.
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (K=0.8; tmax=5; tm=2.5; Fec=200,000 to >1 million).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 4 stock assessments.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100).
Climate Vulnerability (Ref. 125649):  Low to moderate vulnerability (28 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 200 [57, 445] mg/100g; Iron = 2.61 [0.96, 6.35] mg/100g; Protein = 21.6 [19.6, 23.5] %; Omega3 = 0.324 [0.153, 0.683] g/100g; Selenium = 65.1 [25.8, 204.4] μg/100g; VitaminA = 21.9 [4.9, 83.8] μg/100g; Zinc = 1.2 [0.4, 2.2] mg/100g (wet weight); based on nutrient studies.