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(Top) White shark at the surface - Photo © Michael Heilemann (Creative Commons). (Below) White shark © G-NA (Creative Commons).


Carcharodon carcharias

(Linnaeus, 1758)

A lot of people are surprised to learn that the white shark frequents the east coast of Canada, and even the St. Lawrence. The white shark is undoubtedly the best known and most feared shark. Its maneater reputation, which comes from movies such as «Jaws» and from overly sensationalistic media reports, is false. However, this shark is considered dangerous and it occasionally attacks people.

On the East Coast, the white shark is present off all of the maritime provinces. Accidental captures and sightings take place in the Bay of Fundy, in Cape Breton, around P.E.I., and on the northern shore of the St. Lawrence Estuary. A white shark was even brought ashore at the Forestville wharf, less than an hour from Les Escoumins, a popular dive destination in Quebec. Obviously, this was a very rare event. No white shark has been reported in the estuary for many years and it has never been observed by divers in Canada.

Great white shark. Photo © Terry Goss (Creative Commons)

Provisional map of great white shark distribution based on research by GEERG. Details on observations (other than year) will be released at a later date. Map does not include data from Europe or Mid-Atlantic. To submit additional observations or reports of sightings, please contact us at: info@geerg.ca

Scientific Name:
Carcharodon carcharias* (Linnaeus, 1758)
*sharp-toothed shark

Common Names:
White shark
Great white shark
White pointer
White death

Requin blanc (Fr.)
Grand requin blanc (Fr.)

Carcharodon comes from the Greek words "karcharos," meaning "to sharpen", and "odous," meaning "teeth". Maximus is a Greek word meaning "point" or "type."

Maximum length: Up to 7.1m (23')
Average length: 4.5m (14')
Weight: Up to 2,300kg (5,070lbs)

The white shark is the largest carnivorous fish in the world. Although the Greenland shark rivals the white shark in length, the white shark has up to twice the girth and mass of a Greenland shark.

The white shark's colouration and colour distribution enables it to blend into its environment and to attack its prey without being seen.

White shark © G-NA (Creative Commons).

The white shark is an opportunistic predator that will eat just about anything that comes across its path, either dead or alive.

VERIFIED STOMACH CONTENTS

Fish: (Among many others) Atlantic salmon, hake, halibut, mackerel, tuna, other sharks and skates.

Marine Mammals: Large cetaceans (usually dead), dolphin, porpoise, seals.

Others: Birds, sea turtles.

Photo © Herman Yung (Creative Commons)

Status

COSEWIC

The Atlantic population of the white shark is considered Endangered by the COSEWIC (Committee on the Status of Endangered Wildlife in Canada).

White shark - Carcharodon carcharias
Atlantic population
Status: Endangered (2006)
Canadian Occurrence: Atlantic Ocean

Click HERE to go to COSEWIC's web page on the white shark (Atlantic).

White shark - Carcharodon carcharias
Pacific population
Status: Data Deficient (2006)
Canadian Occurrence: Pacific Ocean

Click HERE to go to COSEWIC's web page on the white shark (Pacific).

Benz, G W., Dippenaar, S M., 1998, Putting the Bite on Jaws: Copepods as Enemies of Sharks, Southeast Aquatic Research Institute.

Bigelow, H B., Schroeder, W C., 1953, FISHES OF THE GULF OF MAINE, United States Government Printing Office, Washington.

Borucinska, J. D., Benz G.W., Whiteley, H.E. 1988, Ocular lesions associated with attachment of the parasitic copepod Ommatokoita elongata (Grant) to corneas of Greenland sharks, Somniosus microcephalus (Bloch & Schneider), Journal of Fish Diseases ,21, 415-422.

Caloyianis N., Winter, 2000, Arctic Sharks - Adventures with the Greenland Shark, Ocean Realm.

Gallant J., Harvey-Clark C., Myers R.A., Stokesbury M.J.W., 2006, Sea lamprey (Petromyzon marinus) attached to a Greenland shark (Somniosus microcephalus) in the St. Lawrence Estuary, Canada, Northeastern Naturalist, 13, 35–38.

Harvey-Clark C., Gallant J , Batt J., 2005, Vision and its relationship to novel behaviour in St. Lawrence River Greenland Sharks (Somniosus microcephalus), The Canadian Field-Naturalist, Volume 119, Number 3. (July–Sept 2005).

Homer S., 1984, Jaws IV : Great white shark netted off Maritime tourist beaches, Equinox Magazine. 14, 127-128.

Lineaweaver, T., Backus, R.H. 1970, THE NATURAL HISTORY OF SHARKS, Ed Lyons & Burford.

Martin, R. Aidan., Wallace, Scott., Wallace, COSEWIC Assessment and Status Report on the White Shark Carcharodon carcharias in Canada, COSEWIC COMMITTEE ON THE STATUS OF ENDANGERED WILDLIFE IN CANADA, 2006

Martin, R. Aidan., 2003, Field Guide to the Great White Shark, ReefQuest Centre for Shark Research, Special Publication , 1, 1-185.

Martin, R. Aidan., 1995, SHARK SMART, ed Diving Naturalist Press, Vancouver.


Paccalet, Y., 2003, LA VIE SECRETE DES REQUINS, Ed l'Archipel, Paris.

Pranschke, J. L., 2000, The use of carbon and nitrogen isotope analyses for the determination of carbon source and trophic position of Somniosus microcephalus, Carleton University, Ottawa.

Ridoux V., Hall A.J., Steingrimsson G., Olafsson G., 1998, An Inadvertent Homing Experiment with a Young Ringed Seal, Phoca hispida, Marine Mammal Science, 14, 883-888.

Scott, W.B., Scott M.G., 1988, ATLANTIC FISHES OF CANADA, University of Toronto Press.

Stokesbury M.J.W., Harvey-Clark C., Gallant J., Block B.A., Myers R.A., 2005, Movement and environmental preferences of Greenland sharks (Somniosus microcephalus) electronically tagged in the St. Lawrence Estuary, Canada, Marine Biology.

Templeman, W., 1963, Distribution of Sharks in the Canadian Atlantic, Fisheries Research Board of the Atlantic, Ottawa.

Le naturaliste canadien, Déc. 1960. Université Laval

Les nouvelles du large, (Bulletin no. 7) - GREMM, 18.06.1999

Les nouvelles du large, (Bulletin no. 8) - GREMM, 24.06.1999


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