Notorynchus cepedianus (Péron, 1807)

Broadnose sevengill shark

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

Classification	Elasmobranchii \| Hexanchiformes \| Hexanchidae
Synonyms	Squalus cepedianus, Heptranchias cepedianus, Heptrachias pectorosus, ... more
Common names	Platnez, Cañabota gata, Tasmanian tiger shark, ... more

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Image of Notorynchus cepedianus (Broadnose sevengill shark)

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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 : 300 cm TL male/unsexed; (Ref. 5578); common length : 150 cm TL male/unsexed; (Ref. 6077); max. published weight: 107.0 kg (Ref. 9987); max. reported age: 49 years (Ref. 27952)

Environment

Demersal; marine; depth range 0 - 570 m (Ref. 26346), usually ? - 80 m (Ref. 5578)

Climate / Range

Subtropical; 56°N - 55°S, 131°W - 177°E (Ref. 54680)

Circumglobal: In tropical to temperate waters; except North Atlantic and Mediterranean Sea. Southwest Atlantic: southern Brazil to northern Argentina. Southeast Atlantic: Namibia to East London, South Africa (Ref. 5578). Western Pacific: southern Japan to New Zealand. Eastern Pacific: British Columbia, Canada to Chile. Record from India maybe erroneous.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Anal spines: 0; Vertebrae: 123 - 157. A large seven-gilled cowshark (Ref. 5578) with a wide head, short and blunt snout, and fusiform body. Dorsal fin small, origin may vary from over insertion of pelvic fins to over free rear tips of pelvic fins. Anal fin smaller than dorsal fin. Tooth count 15-16/13. Reddish-brown to silvery-grey or olive-brown with numerous small black spots on body and fins; cream below (Ref. 5578).

Found on the continental shelf, often in shallow water (Ref. 247). Occurs close inshore, in bays and estuaries (Ref. 6871), with larger individuals ranging into deeper waters offshore and deep channels in bays (Ref. 247). Usually cruising steadily and slowly near the bottom (sometimes in water as shallow as a meter), but sometimes at the surface (Ref. 247). Can dash at speed when attacking prey (Ref. 247). Feeds on anything, including other sharks, rays, chimaeras, bony fish, hagfish, dolphin and porpoise meat, seals, shark egg cases, sea snails and mammalian carrion, including rats and humans (Ref. 5578). Ovoviviparous (Ref. 50449), with 82 to 95 young in a litter (Ref. 31395). Aggressive when provoked, and regarded as potentially dangerous to people in open waters (Ref. 247). It has attacked divers in captivity and may be involved in a few shark attacks off California and South Africa (Ref. 247). Often caught by anglers from the shore (Ref. 6574). Utilized for human consumption, its skin for leather, and its liver as a source of oil (Ref. 247).


IUCN Red List Status (Ref. 57073)	Threat to humans
Data deficient (DD)	Traumatogenic (Ref. 247)

Human uses
Fisheries: commercial; gamefish: yes; aquarium: public aquariums


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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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (rm=0.026; K=0.25; tm=16; tmax=32; Fec=82-95)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (57 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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