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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 02 March 2012

Friday, March 02, 2012 |  0 Comment Tags: shark cage diving,

Author: Oliver Jewell (Marine Biologist)
Born in London, England, Oliver has been in South Africa for the past 4 years after earning a BSc (hons) in Oceanography from the University of Southampton. His first experience with Great White Sharks was similar to many people's only experience - watching the film Jaws. Since that day, he has been dedicated to learning everything he could about sharks and ways of protecting them.

 

Guest comment: “Amazing-very impressed with the respect for the sharks and knowledge of crew. I have conquered my fears. Thanks! ” Dave Stone.
 
 
02/03/2012
Location:
Joubertsdam
Water Temperature: 20.2'C
Depth: 11.0m
Visibility: 2m
Number of Sharks: 9
Conditions: Sunny.
 
What a fantastic day aboard Slashfin. It was a quiet start to the trip
and we waited for the first 30 minutes to see a shark. It was
definitely worth the wait as once they arrived we absolutely cooked!
Several familiar fins were sighted including the big shark with the
bent fin and at the end Chopper appeared and made his presence felt
with several lunges at the bait. Nine sharks were sighted in total and
activity was stunning! It was nice to have Joubertsdam return to flat
calm conditions after big swells the day before.
 
 
 
 
 
 
 
For more shark facts and shark updates, also "Like" our Marine Dynamics facebook fan page. If you would like to review your trip online to help others choose the right cage diving company, please visit our TripAdvisor page and leave your feedback.
 
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