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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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Daily trip 24 Feb 2012

Friday, February 24, 2012 |  1 Comment Tags: shark cage diving, Sting Ray,

Author: Nicola Stelluto (Environmental Ecologist)
My initial love for the environment occurred at a young age when my father and I use to watch animal documentaries on Sunday evenings. I was hooked on anything ocean related when I saw these amazing submersibles going to such extreme depth in the ocean and discovering previously unseen things. To be the first to go somewhere where no one has been before was the first thing that attracted me to the field of natural sciences.

Guest comment: “Sharks were abundant! A really exciting trip. The crew could not have been any more gracious! A wonderful experience! ” Kaila.


24/02/2012
Location:
Joubertsdam
Water Temperature: 19.1'C
Depth: 8.8m
Visibility: 2m
Number of Sharks: 7
Conditions: Sunny

The sharks were on South African time today! On both trips they seemed to be a bit sluggish (maybe a heavy night for them), however it didn’t last too long! It took a massive sting ray arriving on the scene to break the silence! It was incredible to see several sharks on the portside right next to a huge sting ray! The smaller sharks seemed to be intimidated by the large ray! It was the first time that I have seen the “Great White Shark” being bullied! I am proud to say that several of our guests conquered their fears of these majestic animals; some even shed a tear because they realized how great these guys are. Let’s see what tomorrow has in store for us!
 

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