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.


Portugal country information

Common names: Bigeye thresher, Raposo-de-olhos-grandes, Tubarão raposo
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 43278.
National Checklist: Portugal
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database: Portuguese Freshwater Fishes

Common names from other countries

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (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 पारिस्थितिकी

समुद्री; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 0 - 730 m (Ref. 89423), usually 0 - 100 m (Ref. 43278).   Subtropical; 46°N - 40°S, 180°W - 180°E (Ref. 54278)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Circumglobal; tropical and temperate seas. Highly migratory species.

Length at first maturity / आकार / वज़न / Age

Maturity: Lm 253.0, range 154 - 341 cm
Max length : 488 cm TL पुल्लिंग / अलिंग; (Ref. 40637); common length : 350 cm TL पुल्लिंग / अलिंग; (Ref. 5217); अधिकतम प्रकाशित वज़न: 363.8 kg (Ref. 40637); अधिकतम सूचित उम्र: 20 वर्षो (Ref. 28081)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 0; गुदा कांटा: 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).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ 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 | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

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 | संदर्भ | संयोजक : Compagno, Leonard J.V. | सहयोगीयो

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)


CITES (Ref. 128078)


Threat to humans

  Harmless (Ref. 247)




Human uses

मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां
FAO(मात्स्यिकी: production, species profile; publication : search) | FishSource | Sea Around Us

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
Diet compositions
Food consumptions
Food rations
परभक्षी
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
पुनरुत्पत्ति
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
लार्वा
लारवल गतिकी
Distribution
देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
BRUVS - Videos
Anatomy
Gill areas
दिमाग
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
मत्स्य आवाज़े
Diseases / Parasites
Toxicities (LC50s)
Genetics
आनुवंशिकी
Electrophoreses
Heritabilities
Human related
Aquaculture systems
जलीयकृषि रूपरेखाऐ
खींच
Ciguatera cases
Stamps, coins, misc.
References
संदर्भ

साधन

Special reports

Download XML

इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 19.2 - 29, mean 27.1 (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).
Trophic level (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (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.