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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 14 March 2012

Wednesday, March 14, 2012 |  1 Comment Tags: Big Nemo, Hook in mouth, shark cage diving, Subantarctic Skua,

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: “Fantastic Absolutely incredible! Wonderful staff and crew, I wish I could stay the entire year!” Keith Kochendorfer.


14/03/2012
Location:
Joubertsdam
Water Temperature: 14.7'C
Depth: 9.0m
Visibility: 1.5m
Number of Sharks: 9
Conditions: Combination of sun and wind.

I am absolutely thrilled to report that we had a very famous shark around the boat today, ‘Bullet’, aka ‘Big Nemo’. This shark appears to have gone through several world wars and survived. It is missing its left pectoral fin; it has a large hole in its dorsal fin and to top it off a large bite wound to the side of its head! This shark is still going strong; this clearly demonstrates the remarkable healing ability of these animals! We spotted the same shark today as yesterday, with the hook in its mouth, and I have included a photo which is quite graphic. Talks are currently underway in order to devise a plan in which we can help this shark! The trip itself today had great activity with some very close passes from the sharks; the only problem I think is that I need to start putting on more sunscreen :)! I’m becoming darker every day! This is a good reference for all our future clients to remember to pack in your sun block... Great Day!


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