You can sponsor this page

Alopias superciliosus Lowe, 1841

Bigeye thresher
Add your observation in Fish Watcher
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
Upload your photos and videos
Pictures | Videos | Google image
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: 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.

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.

Length at first maturity / Size / Vikt / Age

Maturity: Lm 253.0, 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 Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar 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 Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | 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. 130435)

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

CITES


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

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos
Anatomy
Gill areas
Hjärnstorlek
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Outreach
Medarbetare
References
referenser

Verktyg

Special reports

Download XML

Internet-källor

AFORO (otoliths) | 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. 123201): 19.2 - 29, mean 27.1 °C (based on 6320 cells).
Phylogenetic diversity index (Ref. 82804):  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).
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 = 0.15 - 0.34, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (63 of 100).
Price category (Ref. 80766):   Low.
Nutrients (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);