Large white shark

The large white shark (scientific name Carcharodon carcharias ) is a exceptionally large Requin. It is largest Poisson Prédateur which lives in the oceans on Ground. He is the only current representative of the kind Carcharodon , to which also gigantic the Carcharodon megalodon belonged. Its lifespan is estimated enters 23 and 60 years.

Note: Although pertaining to a different species, the shark gracile ( Carcharhinus amblyrhynchoides ) is sometimes also called white shark .

Description

The large white shark measurement on average from 4 to 6 meters for approximately two tons. The largest specimen ever fished, officially recognized by the specialists in the sharks, measured 6,40 meters (measured according to a scientific method i.e. flat on the ground and not suspended with a rope) and weighed 3.220 kg. It was fished in Cuba. The capture of an white shark of 7,13 meters, in Malta, is a hoax as that was proven by experts. In the absence of evidence other than of the photographs, it proved that this shark measured " seulement" approximately 5,50 meters and not 7,13 meters. It has a rather long Museau conical. Its Dent S is punts, triangular, and notched and can be 7,5 cm long (6 cm exceeding of the " gencives"). The slits branchiales, very long, do not encircle the head. They precede the pectoral fins Falciforme S developed well, as well as strong small cavities précaudales and caudal Carène S, characteristic of Lamnidae. The caudal fin is short, almost symmetrical in the shape of crescent. Its life expectancy is evaluated enters 23 and 60 years. It has between 44 and 52 teeth.

Habitat

The habitat of the large white shark is mainly coastal in moderated water, but it was also observed in epipelagic zones in the ocean. It is an amateur of not very deep water, but a specimen was however fished on a long line of 1280 meters.

One finds the large white shark in all the moderate seas of the sphere. It is particularly present in Australia, South Africa, and in California like in the the Caribbean. More rarely, it can also meet in Mediterranean. The large white shark is also present in the Pacific Ocean, in particular off the coasts Hawaii ennes, of the Japan to the Filipino , of the New Caledonia and the New Zealand.

It generally only moves or in pair, but never in colony. If it sometimes happens to observe the same specimen several years of continuation in same water, the territoriality forever been able to be shown. On the other hand, of the taking away of DNA would seem to indicate a tendency to the voyage at long distances for the males, the females more generally remaining near the coasts.

Reproduction

Its cycle of reproduction slow and is ignored enough. It is ovoviviparous: the eggs develop and hatch in the Utérus of the female, with uterine cannibalism (like the others Lamnidé S). The white large young people, with the birth, measure between 1,09 and 1,60 m

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