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Notorynchus cepedianus (Péron, 1807)

Broadnose sevengill shark
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Native range
This map was computer-generated and has not yet been reviewed.
Notorynchus cepedianus   AquaMaps   Data sources: GBIF OBIS
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Image of Notorynchus cepedianus (Broadnose sevengill shark)
Notorynchus cepedianus
Picture by Murch, A.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Hexanchiformes (Frill and cow sharks) > Hexanchidae (Cow sharks)
Etymology: Notorynchus: Greek, noton = back + Greek, rhyngchos = snout (Ref. 45335);  cepedianus: maculatus meaning spotted (Ref. 6885).

Environment: milieu / climate zone / depth range / distribution range Écologie

; marin; saumâtre démersal; profondeur 0 - 570 m (Ref. 26346), usually ? - 80 m (Ref. 5578).   Subtropical; 56°N - 55°S, 131°W - 177°E (Ref. 54680)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

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.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 192 - 208 cm
Max length : 300 cm TL mâle / non sexé; (Ref. 5578); common length : 150 cm TL mâle / non sexé; (Ref. 6077); poids max. publié: 107.0 kg (Ref. 9987); âge max. reporté: 49 années (Ref. 27952)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 0; Épines anales 0; Rayons mous anaux: 0; Vertèbres: 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).

Biologie     Glossaire (ex. epibenthic)

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).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Ovoviviparous, embryos feeding solely on yolk (Ref. 50449), with number of young reaching 82 in a litter. Gravid females apparently drop their young in shallow bays. Size at birth between 40 (Ref. 26346) and 53 (Ref. 247) cm. Distinct pairing with embrace (Ref. 205). Gestation period 12 months. The reproductive cycle appears to be biennial (Ref. 45445).

Référence principale Upload your references | Références | Coordinateur : Compagno, Leonard J.V. | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Risque faible : presque menacé (LR/nt) ; Date assessed: 30 June 2000

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Traumatogenic (Ref. 247)





Utilisations par l'homme

Pêcheries: commercial; pêche sportive: oui; Aquarium: Aquariums publics
FAO(pêcheries: production, Résumé espèce; publication : search) | FishSource | Sea Around Us

Plus d'informations

Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Rassemblement de ponte
Fécondité
Œufs
Développement de l'œuf
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
Collaborateurs
Images
Stamps, Coins Misc.
Sons
Ciguatera
Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7.5 - 19.2, mean 14.2 (based on 122 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0781   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00193 - 0.00988), b=3.10 (2.90 - 3.30), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  4.7   ±0.2 se; Based on diet studies.
Résilience (Ref. 69278):  Très faible, temps minimum de doublement de population supérieur à 14 ans (rm=0.026; K=0.25; tm=16; tmax=32; Fec=82-95).
Vulnérabilité (Ref. 59153):  High vulnerability (57 of 100) .
Catégorie de prix (Ref. 80766):   Low.