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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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Daily trip 10 March 2012

Saturday, March 10, 2012 |  1 Comment Tags: Sardine school, shark cage diving, The Evil Eyed Puffer Fish,

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: “A must do trip! Awesome!” James Lafferty.

10/03/2012
Location:
Joubertsdam
Water Temperature: 19.0'C
Depth: 8.0m
Visibility: 1m
Number of Sharks: 12
Conditions: Overcast with no wind.

It was a battle with the tides today and not with the sharks, they were on time! We departed the harbour nice and early this morning and remained out a bit longer than usual in order to catch the incoming tide again! The guests received the news very well; this gave them more time to relax at sea at no extra cost :)! We had a couple of amazing sightings today, excluding the great whites. We had a massive school of sardines swim past our cage; the school covered nearly the entire horizon. They were about a meter in front of the cage, an amazing site for the guys in the water. We had a great example of The Evil Eyed Puffer Fish (Amblyrhynchotes honckenii), on our bait today. A very beautiful fish indeed! There were many sharks today and only 2 out of the 12 sharks spotted were less than 3 meters, so it was a day for the giants. Great to see all of these great things on a single trip...
 

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