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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 21 Feb 2012

Tuesday, February 21, 2012 |  0 Comment Tags: shark cage diving,

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: “Great experience! The staff was great and very friendly. Thank you all. I will never forget it!” Andrew Solow!


21/02/2012
Location
: Joubertsdam
Water Temperature: 17.7'C
Depth: 10.1m
Visibility: 1.5m
Number of Sharks: 6
Conditions: Big swells with some wind.

An amazing sighting today! We were fortunate enough to catch a glimpse of the infamous “Slash Fin”! This large 4.2 meter shark is the reason why our shark boat is named Slash Fin! He has really grown very large over the years and it was great to see him today. There were some big swells at times today, which caused some of our passengers to suffer from “motion distress”! Luckily the crew was there to help them get over their little problems and plunge them into the cage where their minds could be kept busy by majestic sharks! It was great to have a dolphin sighting again today, they are very playful creatures! Our gannet population was out in full force today where they had found a school of fish that were easy pickings off the coast of Dyer Island! Great stuff...
 

 


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