Alopias superciliosus (Lowe, 1841)

Bigeye thresher

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Elasmobranchii \| Lamniformes \| Alopiidae
Synonyms	Alopecias superciliosus, Alopias profundus, ... more
Common names	Renard à gros yeux, Zorro ojón, Big eye thresher shark, ... more

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Image of Alopias superciliosus (Bigeye thresher)

Picture by Vaske Jr., T.

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AquaMaps Data sources: GBIF OBIS

Main reference

Compagno, L.J.V. 1984. (Ref. 247)
Other references | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators

Size / Weight / Age

Max length : 488 cm TL male/unsexed; (Ref. 40637); common length : 350 cm TL male/unsexed; (Ref. 5217); max. published weight: 363.8 kg (Ref. 40637); max. reported age: 20 years (Ref. 28081)

Environment

Pelagic-oceanic; oceanodromous (Ref. 51243); marine; depth range 0 - 500 m (Ref. 9253), usually 0 - 100 m (Ref. 43278)

Climate / Range

Subtropical; 46°N - 40°S, 180°W - 180°E (Ref. 54278)

Circumtropical. Western Atlantic: New York, USA southward to Bahamas and Cuba; Panama (Ref. 6871) to Uruguay (Ref. 58839). Eastern Atlantic: Portugal to Angola, including the Mediterranean. Indo-Pacific: Arabian Sea, Madagascar, South Africa, southern Japan, Taiwan, northern Viet Nam (Ref. 13570), New Caledonia, northwestern coast of Australia, New Zealand and north and south of the Hawaiian Islands Eastern Pacific: southern California (USA), Costa Rica and Panama (Ref. 9253), Galapagos Islands Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 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).

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.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless (Ref. 247)

Human uses
Fisheries: commercial; gamefish: yes


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (Fec=2-4)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (79 of 100)	Low

Entered by Carpenter, Kent E.

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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