Common names from other countries

Patudo, Тунец большеглазый, Thon obèse, ... more

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335).
More on author: Lowe.

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

marin; océanodrome (Ref. 51243); profondeur 0 - 1500 m (Ref. 117020), usually 0 - 500 m (Ref. 117020). Subtropical; 13°C - 29°C (Ref. 168); 52°N - 48°S, 180°W - 180°E

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Atlantic, Indian and Pacific: in tropical and subtropical waters. Absent in the Mediterranean. Highly migratory species.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m 112.5, range 100 - 125 cm
Max length : 250 cm TL mâle / non sexé; (Ref. 27000); common length : 180 cm FL mâle / non sexé; (Ref. 168); poids max. publié: 210.0 kg (Ref. 9987); âge max. reporté: 11 années (Ref. 30326)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 13 - 14; Rayons mous dorsaux (Total) : 14 - 15; Épines anales: 0; Rayons mous anaux: 14; Vertèbres: 39. This large species is distinguished by the following characters: robust, fusiform body, slightly compressed from side to side; total gill rakers on first gill arch 23-31; dorsal fins separated only by a narrow interspace, the second followed by 8-10 finlets; anal fin followed by 7-10 finlets; pectoral fins moderately long (22 to 31% of fork length) in large specimens (over 110 cm FL), but very long (as long as in Thunnus alalunga) in smaller specimens; 2 flaps (interpelvic process) between pelvic fins; very small scales on body; corselet of larger and thicker scales developed, but not very distinct; caudal peduncle very slender, with a strong lateral keel between 2 smaller keels; ventral surface of liver striated; swimbladder present. Colour of back metallic dark blue, lower sides and belly whitish; a lateral iridescent blue band runs along sides in live specimens; first dorsal fin deep yellow, second dorsal and anal fins light yellow, finlets bright yellow edged with black (Ref. 9684).

Occur in areas where water temperatures range from 13°-29°C, but the optimum is between 17° and 22°C. Variation in occurrence is closely related to seasonal and climatic changes in surface temperature and thermocline. Juveniles and small adults school at the surface in mono-species groups or mixed with other tunas, may be associated with floating objects. Adults stay in deeper waters (Ref. 5377). Eggs and larvae are pelagic (Ref. 6390). Feed on a wide variety of fishes, cephalopods and crustaceans during the day and at night (Ref. 9340). Meat is highly prized and processed into sashimi in Japan. Marketed mainly canned or frozen (Ref. 9684), but also sold fresh (Ref. 9340).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Are multiple spawners that may spawn every 1 or 2 days over several months (Ref. 30330). They spawn over periods of the full moon (Ref. 6390). Spawn throughout the year in tropical waters (Ref. 6390).

Référence principale Upload your references | Références | Coordinateur : Collette, Bruce B. | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Vulnérable, voir Liste Rouge IUCN (VU) (A2bd); Date assessed: 15 January 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: hautement commercial; pêche sportive: oui

FAO(pêcheries: production, Résumé espèce; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 16.8 - 28.6, mean 26.6 (based on 3638 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01318 (0.01039 - 0.01673), b=3.03 (2.99 - 3.07), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Niveau trophique (Ref. 69278): 4.5 ±0.0 se; based on diet studies.

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.11-0.23; tm=3; tmax=11; Fec=2 million).

Prior r = 0.52, 95% CL = 0.34 - 0.77, Based on 10 full stock assessments.

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Climate Vulnerability (Ref. 125649): Moderate to high vulnerability (47 of 100).

Catégorie de prix (Ref. 80766): Very high.

Thunnus obesus (Lowe, 1839)