Hexanchus griseus (Bonnaterre, 1788)

Bluntnose sixgill shark

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

Classification	Elasmobranchii \| Hexanchiformes \| Hexanchidae
Synonyms	Squalus griseus, Monopterinus griseus, Notidanus griseus, ... more
Common names	Requin griset, Cañabota gris, Atlantic mud shark, ... more

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Image of Hexanchus griseus (Bluntnose sixgill shark)

Picture by Van Orden, W.

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This map was computer-generated and has not yet been reviewed.

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 : 482 cm TL male/unsexed; (Ref. 247); common length : 300 cm TL male/unsexed; (Ref. 5217); max. published weight: 590.0 kg (Ref. 27436)

Environment

Bathydemersal; oceanodromous (Ref. 51243); marine; depth range 1 - 2500 m (Ref. 58302), usually 180 - 1100 m (Ref. 45445)

Climate / Range

Subtropical; 65°N - 48°S, 180°W - 180°E

Circumglobal: In tropical and temperate waters; (Ref. 13573). Western Atlantic: North Carolina to Florida (USA) and northern Gulf of Mexico to northern Argentina. Eastern Atlantic: Iceland and Norway to Namibia, including the Mediterranean. Indian Ocean: Madagascar, Mozambique, and South Africa. Western Pacific: eastern Japan to New Zealand and Hawaii. Eastern Pacific: Aleutian Islands, Alaska to Baja California, Mexico; also Chile . Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139, Ref. 41819).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 0. A heavily-bodied, broad-headed sixgill shark, mouth ventral with 6 rows of lower, bladelike, comb-shaped teeth on each side (Ref. 247). Snout broadly rounded, body fusiform (Ref. 6871). Anal fin smaller than dorsal fin (Ref. 6871). Brown or grey above, paler below, with a light stripe along side (Ref. 26346). Fins with white edges (Ref. 6574). Live specimens with fluorescent green eyes (Ref. 6871). Six gill slits are very long (Ref. 35388).

Depth range reported at 0m-2000m. A deepwater species of the outer continental and insular shelves and upper slopes (Ref. 6871). Near bottom, occasionally pelagic, adults usually below 91 m (Ref. 58302). Juveniles may be found close inshore (Ref. 6871). Found on the bottom by day, moving to the surface at night to feed, and where it may take longlines set for other species (Ref. 45445). Depth distribution related to growth and temperature, with juveniles having most shallow records and from colder, poleward regions (Ref. 58302). Feeds on a wide range of marine organisms, including other sharks, rays, chimaeras, bony fish, squids, crabs, shrimps, carrion, and even seals. Ovoviviparous (Ref. 205), with 22 to 108 pups in a litter (Ref. 247). Marketed fresh, frozen, or dried salted; also utilized as a source of oil and fishmeal. Not known to have attacked people without provocation (Ref. 247). Give birth to almost 100 young (Ref. 35388).


IUCN Red List Status (Ref. 57073)	Threat to humans
Lower Risk: near threatened (LR/nt)	Poisonous to eat (Ref. 4690)

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)

Low, minimum population doubling time 4.5 - 14 years (Fec= 22-108)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (84 of 100)	Not marketed/unknown

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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