open
<
1/6
  • 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.

>

Sharkwatch SA Blog

Book Now

Daily trip 16 March 2012

Friday, March 16, 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.

16/03/12

Location: Joubertsdam

Water temperature: 16.6’C

Depth: 9m

Conditions: Calm – Choppy by the end

Visibility: 2m

 

Conditions were perfect upon arrival in Joubertsdam but we could see the cold front approaching on the horizon. The sharks responded within minutes and before long we had four circling the boat, one smaller shark and three big ones. The largest was around the 4 meter mark and came very close to the cage on several occasions. Before long we were joined by others and the trip was almost done by the time the weather began to move in. We rushed back for the cover of the Great White House before the rain began to pour down!
 

 

comments powered by Disqus