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
Afbeelding van S. Iglesels et al

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (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.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien pelagic-oceanic; oceanodroom (Ref. 87829); diepte 0 - 650 m (Ref. 106604), usually 0 - 200 m (Ref. 55168). Subtropical; 74°N - 58°S, 180°W - 180°E (Ref. 54279)

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | 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.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 351.0, range 226 - 400 cm
Max length : 573 cm TL mannelijk / geslacht onbekend; (Ref. 106604); 549.0 cm TL (female); common length : 450 cm TL mannelijk / geslacht onbekend; (Ref. 5217); max. gepubliceerd gewicht: 348.0 kg (Ref. 40637); max. gerapporteerde leeftijd: 25 Jaren (Ref. 81241)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Anale stekels: 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.

Biologie     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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).

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Compagno, Leonard J.V. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

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

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Gevaar voor de mens

  Harmless (Ref. 247)





Gebruik door de mens

Visserij: commercieel; sportvis: ja
FAO - visserij: soortsprofiel, landings search; Publication: search | FishSource | Sea Around Us

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 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).
Trofisch niveau
(Ref. 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.
Weerstandsvermogen
(Ref. 120179) 		laag, minimale populatieverdubbelingstijd 4,5-14 jaar (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.
Kwetsbaarheid van de visserij
(Ref. 59153) 		Very high vulnerability (77 of 100). 🛈
Kwetsbaarheid voor het klimaat
(Ref. 125649) 		High vulnerability (62 of 100). 🛈
Prijsklasse
(Ref. 80766) 		High.
Voedingsstoffen
(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);