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  • In Gansbaai, the largest white shark ever caught was at Danger Point and measured up to 5.9m. The exact world record white shark is a contested issue, but chances are it is between 6-7m.

  • If you see a white shark in the water don’t panic. Chances are high that the shark has already detected you and isn’t interested. White shark attacks are normally associated with poor visibility, so avoid murky conditions.

  • White sharks have a unique system called a “counter current heat exchange”, which keeps their body  tempreture +/- 7C above the surrounding water temperature. 

  • All sharks have an incredibly unique system on the tip of their nose called the “ampillae of Lorenzini”. These are small pores filled with a gel that transmits the electrical currents in the water to the shark’s brain so that it can assess its environment.

  • White sharks give birth to live young (not eggs), and they give birth to 6-8 pups at one time. Pups are usually between 1.0-1.5m in length and are born with teeth.

  • Body language has been a well documented form of shark communication and has identified body arching, jaw gaping, and other postures as specific social tactics.

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White Shark Migrations

Wednesday, February 22, 2012 |  0 Comment Tags: movement patterns, shark fact, white shark migration,

Author: Michelle Wcisel (Marine Biologist)
To Michelle, a born and bred American from Michigan, the sea resembles another planet within Earth where intelligent "extraterrestrial" beings and thriving systems flourish in the depths where there is neither oxygen nor sunlight. "So many of us gaze at the stars in wonder when we should be looking into our oceans!"

Where do white shark migrate to and how do we track them, and what does this mean for white sharks worldwide?
This is a very tough question to answer, especially since white sharks travel all oceans except the Arctic and Antarctic and it is very difficult to keep track of them.

We know at least one shark that was satellite tagged in Gansbaai travelled all the way to the West coast of Australia in about 3 months. This shark, named “Nicole”, then travelled back to the East coast of South Africa in another 9 months. Some of the other sharks stayed around the coasts of South Africa, with one heading south towards Marion Island!
This is important for conservation since white sharks are protected in South African waters, but may not be in Mozambique or Kenyan waters (where South African sharks have travelled before). So in order to best protect trans-oceanic species, we need a world-wide approach to their protection, not just a country by country basis!

shark migration

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