Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino pelagic-neritic; oceanodromo (Ref. 71039); rango de profundidad 50 - ? m (Ref. 9340). Subtropical; 27°C - 28°C; 61°N - 51°S, 180°W - 180°E
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.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 29.5, range 29 - ? cm
Max length : 65.0 cm FL macho / no sexado; (Ref. 29114); common length : 60.0 cm TL macho / no sexado; (Ref. 47377); peso máximo publicado: 1.7 kg (Ref. 40637); edad máxima reportada: 5 años (Ref. 29114)
Espinas dorsales (total) : 10 - 12; Radios blandos dorsales (total) : 10 - 13; Espinas anales: 0; Radios blandos anales: 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).
Body shape (shape guide): fusiform / normal; Cross section: oval.
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).
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.
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: muy comercial; pesca deportiva: si
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 13.8 - 27.1, mean 22 °C (based on 986 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00850 - 0.01124), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nivel trófico (Referencia
69278): 4.4 ±0.4 se; based on diet studies.
Generation time: 1.5 (1.3 - 1.9) years. Estimated as median ln(3)/K based on 18
growth studies.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.71; tm).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 4 data-limited stock assessments.
Vulnerabilidad pesquera (Ref.
59153): Low to moderate vulnerability (28 of 100).
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Vulnerabilidad climática (Ref.
125649): Low to moderate vulnerability (28 of 100).
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Nutrientes (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.
