Alopias vulpinus, Thresher : fisheries, gamefish

Alopias vulpinus (Bonnaterre, 1788)

Thresher
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alopias vulpinus   AquaMaps   Data sources: GBIF OBIS
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Image of Alopias vulpinus (Thresher)
Alopias vulpinus
Immagine di S. Iglesels et al

Classificazione / Nomi Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (sharks and rays) > Lamniformes (Mackerel sharks) > Alopiidae (Thresher sharks)
Etymology: Alopias: From alopex, Greek for fox, referring to the ancient vernacular “fox shark,” from its supposed cunning (ancients believed that when it took a bait, it swallowed the hook until it got to the cord, which it bit off and so escaped) (See ETYFish)vulpinus: Latin for fox-like (as for genus) (See ETYFish).
More on author: Bonnaterre.

Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione Ecologia

marino pelagic-oceanic; oceanodromo (Ref. 87829); distribuzione batimetrica 0 - 650 m (Ref. 106604), usually 0 - 200 m (Ref. 55168). Subtropical; 74°N - 58°S, 180°W - 180°E (Ref. 54279)

Distribuzione Territories | Aree FAO | Ecosistemi | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri

Cosmopolitan in temperate and tropical seas (Ref. 6871, 58085). Population considered reduced (R) in the US Atlantic waters; lower risk/conservation dependent (LR/CD) in US Pacific waters; data deficient (DD) in the rest of Atlantic and rest of Pacific (Ref. 12451). Highly migratory species.

Lunghezza alla prima maturità / Dimensione / Peso / Età

Maturità: Lm 351.0, range 226 - 400 cm
Max length : 573 cm TL maschio/sesso non determinato; (Ref. 106604); 549.0 cm TL (female); common length : 450 cm TL maschio/sesso non determinato; (Ref. 5217); peso massimo pubblicato: 348.0 kg (Ref. 40637); Età massima riportata: 25 anni (Ref. 81241)

Breve descrizione Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 0; Spine anali: 0. A large thresher with relatively small eyes, curved, narrow-tipped pectoral fins, a narrow-tipped caudal fin, and a conspicuous white patch over the pectoral fin bases (Ref. 5578). Second dorsal origin well behind the rear tip of the pelvic fin (Ref. 559). Upper lobe of caudal fin very long and strap-like, about as long as or longer than length of rest of shark; lower lobe short but well developed (Ref. 13570). Brown, grey, blue-grey, or blackish on back and underside of snout, lighter on sides and abruptly white below; a white area extends from the abdomen over the pectoral-fin bases; pectoral-, pelvic-, and dorsal fins blackish, white dots sometimes present on pectoral-, pelvic-, and caudal- fin tips (Ref. 13570).
Body shape (shape guide): fusiform / normal; Cross section: circular.

Biologia     Glossario (es. epibenthic)

Coastal over continental and insular shelves and epipelagic far from land (Ref. 30573, 43278, 58302). Oceanic although most abundant near land, pelagic at 1-366 m (Ref. 58302). Young often close inshore and in shallow bays (Ref. 5578). Feeds on schooling fishes (including mackerels, bluefishes, clupeids, needlefishes, lancetfishes and lanternfishes), squid, octopi, pelagic crustaceans, and rarely seabirds (Ref. 247). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 43278, 50449). Uses its long caudal fin to bunch up and stun prey (Ref. 2850). Spatial and depth segregation by sex in northwestern Indian Ocean populations (Ref. 247). A few attacks on boats are doubtfully attributed to this species, but it is otherwise apparently harmless to humans, though the size of adults of this species command respect (Ref. 247). May cause damage to fishing gear (Ref. 6885). Valued for its meat, liver, hide, and fins; utilized fresh, dried-salted, smoked, and frozen (Ref. 9987).

Ciclo vitale e comportamento di accoppiamento Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve

Ovoviviparous, embryos feed solely on the ova produced by the mother after the yolk sac is absorbed (oophagy) (Ref. 50449), 2 to 4 young in a litter (usually 2) (Ref. 247). Size at birth 114-150 cm (Ref. 247). Distinct pairing with embrace (Ref. 205).

Riferimento principale Caricare le referenze | Bibliografia | Coordinatore : Compagno, Leonard J.V. | Collaboratori

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))

  Vulnerabile (VU) (A2bd); Date assessed: 06 November 2018

CITES


Minaccia per l'uomo

  Harmless (Ref. 247)





Usi umani

Pesca: commerciale; Pesce da pesca sportiva: si

Informazioni ulteriori

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Francobolli, monete, materiale vario.
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Stime basate su modelli

Indice di diversità filogenetica
(Fonte Biblio. 82804)
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00832 (0.00359 - 0.01926), b=2.86 (2.66 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Livello trofico
(Fonte Biblio. 69278)
4.5   ±0.0 se; based on diet studies.
Generation time 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilienza
(Fonte Biblio. 120179)
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (K=0.1; tm=5-7; tmax=19; Fec=2-4).
Rate of population increase Prior r = 0.05, 95% CL = 0.03 - 0.07, Based on 1 full stock assessment.
Vulnerabilità della pesca
(Ref. 59153)
Very high vulnerability (77 of 100). 🛈
Vulnerabilità climatica
(Ref. 125649)
High vulnerability (62 of 100). 🛈
Categoria di prezzo
(Ref. 80766)
High.
Nutrienti
(Ref. 124155)
Calcium = 6.93 [1.98, 35.15] mg/100g; Iron = 0.726 [0.178, 2.143] mg/100g; Protein = 20.7 [18.3, 23.1] %; Omega3 = 0.379 [0.152, 0.923] g/100g; Selenium = 37.8 [10.7, 110.5] μg/100g; VitaminA = 4.78 [1.56, 14.81] μg/100g; Zinc = 0.28 [0.14, 0.52] mg/100g (wet weight);