Alopias superciliosus, Bigeye thresher : fisheries, gamefish

Alopias superciliosus Lowe, 1841

Bigeye 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 superciliosus   AquaMaps   Data sources: GBIF OBIS
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Image of Alopias superciliosus (Bigeye thresher)
Alopias superciliosus
Afbeelding van Chow, S.

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); superciliosus: super (L.), over and above; ciliosus (L.), haughty or having a raised eyebrow, referring to enormous upward- looking eyes set high on head and/or marked groove over eyes (See ETYFish).
More on author: Lowe.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien pelagic-oceanic; oceanodroom (Ref. 87829); diepte 0 - 730 m (Ref. 89423), usually 0 - 100 m (Ref. 43278). Subtropical; 46°N - 40°S, 180°W - 180°E (Ref. 54278)

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

Circumglobal; tropical and temperate seas. Highly migratory species.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 253.0, range 154 - 341 cm
Max length : 488 cm TL mannelijk / geslacht onbekend; (Ref. 40637); common length : 350 cm TL mannelijk / geslacht onbekend; (Ref. 5217); max. gepubliceerd gewicht: 363.8 kg (Ref. 40637); max. gerapporteerde leeftijd: 20 Jaren (Ref. 28081)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Anale stekels: 0. A large thresher with very large eyes, an indented forehead, a broad caudal tip, and curved broad-tipped pectoral fins; 1st dorsal fin further back than in other threshers (Ref. 5578). Upper lobe of caudal fin very long and strap-like almost or quite equal to length of rest of shark; lower lobe short but well developed (Ref. 13570). Purplish grey above, cream below, posterior edges of pectoral and pelvic fins and sometimes first dorsal fin dusky; light color of abdomen not expanded over pectoral-fin bases (Ref. 13570).
Body shape (shape guide): fusiform / normal; Cross section: circular.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Occurs in coastal waters over continental shelves, sometimes close inshore in shallow waters, and on the high seas far from land (Ref. 247, 43278, 58302). Oceanic, pelagic and near bottom at 1->500 m (Ref. 58302). Depth range to at least 500 m (Ref. 247). Feeds on pelagic fishes (lancetfishes, herring, mackerel and small billfishes (Ref. 43278)) and bottom fishes e.g. hake (Ref. 43278)) and squids (Ref. 247). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 43278, 50449). Stuns its prey with its long caudal fin (Ref. 247). Utilized for human consumption, liver oil for vitamins, skin for leather, and fins for shark-fin soup (Ref. 247). Marketed fresh and may be broiled, baked or grilled, but unsuitable for steaming, boiling or frying; meat may be salted and dried (Ref. 9987). Also Ref. 33743.

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

Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). With 2-4 young per litter (usually 2) (Ref. 247). Size at birth between 64-106 cm (Ref. 247); 100-140 cm TL (Ref.58048). No fixed mating or birthing season. 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=0.01122 (0.00607 - 0.02073), b=2.91 (2.74 - 3.08), 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.
Weerstandsvermogen
(Ref. 120179) 		laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tm=7; tmax=20; K=0.088; Fec=2-4).
Rate of population increase Prior r = 0.23, 95% CL = 0.15 - 0.34, Based on 1 data-limited stock assessment.
Kwetsbaarheid van de visserij
(Ref. 59153) 		Very high vulnerability (85 of 100). 🛈
Kwetsbaarheid voor het klimaat
(Ref. 125649) 		High vulnerability (63 of 100). 🛈
Prijsklasse
(Ref. 80766) 		Low.
Voedingsstoffen
(Ref. 124155) 		Calcium = 6.7 [1.9, 34.8] mg/100g; Iron = 0.696 [0.174, 2.034] mg/100g; Protein = 20.5 [18.1, 22.8] %; Omega3 = 0.371 [0.150, 0.897] g/100g; Selenium = 35.9 [11.2, 103.6] μg/100g; VitaminA = 6.18 [2.01, 19.71] μg/100g; Zinc = 0.32 [0.16, 0.59] mg/100g (wet weight);