Alopias superciliosus, Bigeye thresher : fisheries, gamefish

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Alopias superciliosus Lowe, 1841

Bigeye thresher
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Native range | All suitable habitat | Point map | Year 2100
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Alopias superciliosus   AquaMaps   Data sources: GBIF OBIS
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Image of Alopias superciliosus (Bigeye thresher)
Alopias superciliosus
Picture by Chow, S.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Lamniformes (Mackerel sharks) > Alopiidae (Thresher sharks)
Etymology: Alopias: Greek, alopex = fox (Ref. 45335).  More on author: Lowe.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien; oceanodroom (Ref. 51243); diepteverspreiding 0 - 730 m (Ref. 89423), usually 0 - 100 m (Ref. 43278).   Subtropical; 46°N - 40°S, 180°W - 180°E (Ref. 54278)

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Circumglobal; tropical and temperate seas. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm ?, range 154 - 341 cm
Max length : 488 cm TL mannelijk/geslacht niet bekend; (Ref. 40637); common length : 350 cm TL mannelijk/geslacht niet bekend; (Ref. 5217); Maximaal gepubliceerd gewicht: 363.8 kg (Ref. 40637); Maximaal vermelde leeftijd: 20 jaren (Ref. 28081)

Korte beschrijving Morfologie | Morfometrie

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

Biologie     Verklarende woordenlijst (b.v. 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 (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.

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | 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).

Voornaamste referentie Upload your references | 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. 120744)

  Kwetsbaar, zie IUCN Rode Lijst (VU) (A2bd); Date assessed: 20 February 2007

CITES (Ref. 118484)


Gevaarlijk voor mensen

  Harmless (Ref. 247)





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FAO(Visserij: production, soortsprofiel; publication : search) | FishSource | Sea Around Us

Meer informatie

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Ecosystems
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Introducties
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Ecologie
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voedselitems
Voedselconsumptie
voedselhoeveelheid
Populaire namen
Synoniemen
Metabolisme
Predators
Ecotoxicologie
Voortplanting
Geslachtsrijpheid
Kuitschieten
Spawning aggregation
Fecundity
Eieren
Ontwikkeling van de eieren
Leeftijd/Grootte
Groei
Lengte-gewicht parameters
Lengte-lengte parameters
Lengtefrequenties
Morfometrie
Morfologie
Larven
Populatiedynamica van de larven
recrutering
Abundantie
Referenties
Aquacultuur
Aquacultuurprofiel
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Estimates based on models

Preferred temperature (Ref. 115969): 19.2 - 29, mean 27.1 (based on 6320 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00596 - 0.02017), b=2.91 (2.75 - 3.07), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (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).
Prior r = 0.23, 95% CL = 0.08 - 0.62, Based on 1 stock assessment.
Kwetsbaarheid (Ref. 59153):  Very high vulnerability (84 of 100) .
Prijsklasse (Ref. 80766):   Low.