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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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Sharkwatch SA Blog

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Great White Sharks hunted by Orcas in Gansbaai Continues

Author: Marine Dynamics (Shark Cage Diving Company)
Marine Dynamics is a Shark Cage Diving company based in Kleinbaai, a small harbour town, part of Gansbaai in the Western Cape of South Africa. This area is known as a hotspot for the Great White Shark and the best place in the world to see and dive with these iconic creatures in their natural environment.

24 June 2017

Call out & Dissection

The Dyer Island Conservation Trust (DICT) team was called out on Saturday 24th June 2017 after another deceased shark washed ashore in Pearly Beach, Gansbaai. The DICT team completed another white shark autopsy, led by white shark biologist, Alison Towner.

“The deceased male shark measured 4.1m in total length. He was missing his liver, his testes and stomach. The carcass may be a few days old but it seems relatively fresh and bled out massively. All necessary samples have been taken for the various scientific projects. This is the 4th documented deceased white shark since May that we can connect to Orca predation" said Towner.

The pair of Orcas believed to be responsible for the shark deaths was sighted offshore of Danger Point in the morning then again in Franskraal later in the day. Marine Dynamics cage diving boat tracked the pair. Subsequently all cage diving boats failed to see white sharks that day and the sharks have been elusive.

Here is the timeline of events for the first three retrieved and dissected: http://bit.ly/2qCoG2K













 

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