Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino pelagic-oceanic; oceanodromo (Ref. 71039); distribuzione batimetrica 0 - 150 m (Ref. 43), usually 0 - 100 m (Ref. 55219). Subtropical; 22°C - ? (Ref. 12451); 47°N - 45°S, 99°W - 27°E (Ref. 55219)
Atlantic Ocean: roughly from 45°N to 45°S in the southwestern Atlantic and 35°S in the southeastern Atlantic. Records from the Mediterranean Sea, and from Bretagne, France seem to correspond to a few straying individuals. Classified as 'reduced' (Ref. 12451). It is unclear whether there are two separate stocks or a single population in the Atlantic. Highly migratory species.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 164.0, range 130 - ? cm
Max length : 300 cm TL maschio/sesso non determinato; (Ref. 4770); common length : 210 cm TL maschio/sesso non determinato; (Ref. 5217); peso massimo pubblicato: 82.5 kg (Ref. 43)
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 43 - 52; Spine anali: 0; Raggi anali molli: 17 - 23. Blue-black above, silvery white and splattered with brown on the sides, silvery white below; sometimes with more than 15 rows of obscure whitish stripes; 1st dorsal fin dark blue with black dots; 2nd dorsal fin dark blue; pectorals blackish brown, with tinges of silvery white in some specimens; pelvic fins blue-black with a black fin membrane; caudal fin blackish brown.
Body shape (shape guide): elongated.
Usually above the thermocline. Its distribution varies seasonally, reaching higher latitudes in both the northern and southern hemispheres only during the respective warm seasons. Usually found in deep (over 100 m) blue water with surface temperatures over 22°C and salinities of 35 to 37 ppt. Currents of 0.5 to 2 knots occur over much of its habitat. Feeds on fishes and squids. Females grow larger (Ref. 4770). Flesh is of excellent quality. Marketed fresh and frozen.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Migrates into subtropical waters to spawn, with peak spawning occurring in early summer. The spawning areas are found in deep and blue oceanic waters, generally at high temperatures ranging from 20° to 29°C except in the southern Atlantic gyrals, and high surface salinities (over 35 ppt).
Nakamura, I., 1985. FAO species catalogue. Vol. 5. Billfishes of the world. An annotated and illustrated catalogue of marlins, sailfishes, spearfishes and swordfishes known to date. FAO Fish. Synop. 125(5):65p. Rome: FAO. (Ref. 43)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 15.7 - 27.9, mean 25.1 °C (based on 1614 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.7505 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00195 - 0.01025), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 4.5 ±0.4 se; based on diet studies.
Generation time: 1.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.58; assuming tm >=2).
Prior r = 0.24, 95% CL = 0.16 - 0.36, Based on 1 full stock assessment.
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (41 of 100).
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Vulnerabilità climatica (Ref.
125649): High vulnerability (62 of 100).
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Nutrienti (Ref.
124155): Calcium = 38 [16, 74] mg/100g; Iron = 1.1 [0.6, 2.1] mg/100g; Protein = 19.9 [18.6, 21.1] %; Omega3 = 0.225 [0.114, 0.444] g/100g; Selenium = 46.4 [22.1, 100.3] μg/100g; VitaminA = 4.21 [1.14, 15.31] μg/100g; Zinc = 0.34 [0.22, 0.53] mg/100g (wet weight);