Alopias superciliosus, Bigeye thresher : fisheries, gamefish

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Alopias superciliosus Lowe, 1841

Bigeye thresher
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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.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (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 Ekologi

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

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | 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 / Vikt / Age

Maturity: Lm ?, range 154 - 341 cm
Max length : 488 cm TL hane/ej könsbestämd; (Ref. 40637); common length : 350 cm TL hane/ej könsbestämd; (Ref. 5217); publicerad maxvikt: 363.8 kg (Ref. 40637); rapporterad maxålder: 20 år (Ref. 28081)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 0; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 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).

Biologi     Ordlista (t.ex. 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 Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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).

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

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)

IUCN Red List Status (Ref. 123251)

  Sårbar, se IUCNs rödlista (VU) (A2bd); Date assessed: 06 November 2018

CITES (Ref. 123416)


Threat to humans

  Harmless (Ref. 247)





Human uses

Fiskeri: kommersiell; sportfisk: ja
FAO - fiskeri: landings, species profile; Publication: search | FishSource | Sea Around Us

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
Sjukdomar
Behandling
Nutrients
Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

Verktyg

Special reports

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Internet-källor

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - fiskeri: landings, species profile; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationella databaser | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 19.2 - 29, mean 27.1 °C (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 (0.00599 - 0.02007), b=2.91 (2.74 - 3.08), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (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.
Vulnerability (Ref. 59153):  Very high vulnerability (84 of 100) .
Price category (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 11 [1, 40] mg/100g ; Iron = 0.907 [0.255, 2.282] mg/100g ; Protein = 20.3 [17.7, 22.6] % ; Omega3 = 0.389 [0.169, 0.822] g/100g ; Selenium = 28.6 [8.3, 75.4] μg/100g ; VitaminA = 8.59 [2.85, 26.27] μg/100g ; Zinc = 0.349 [0.169, 0.742] mg/100g (wet weight);