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Notorynchus cepedianus (Péron, 1807)
Broadnose Sevengill Shark; Sevengill Shark
Family: Chimaeridae

Photograph

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Map

Source: Distribution of Notorynchus cepedianus as compiled by Aquamaps

Species Information

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).

Source: FishBase. Compagno, L.J.V. 1984 . (Ref. 247)

Biology

Species Biology

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). Environment: demersal; marine; depth range 0 - 570 m (Ref. 26346), usually ? - 80 m (Ref. 5578). Climate: subtropical; 56°N - 55°S, 131°W - 177°E

Source: FishBase. Compagno, L.J.V. 1984 . (Ref. 247)

Distribution

Distribution

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.

Source: FishBase. Compagno, L.J.V. 1984 . (Ref. 247)

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
COSEWIC
NativeSNRNo StatusNot Listed



BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

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