Tracking Great White Sharks

The shark has shot its top jaw forward as it comes in to bite. Photo by Mark Enarson.

Photo by Mark Enarson.

The month after Nicholas Cage disappears, Clinton and Malcolm attach a SPOT tag to a female great white shark at Stewart Island. They name her Pip. Photo by Warrick Lyon.

PAT tags and acoustic tags are designed to be streamlined and sit in the flow of water along the shark’s body. Photo by Clinton Duffy

Kina Scollay. Photo by Jenny (Maria) Oliver

Caro is named after Kina Scollay’s wife and she was 3.7 metres long when she was tagged with a SPOT tag at Stewart Island in 2014. She was tracked to Fiordland and the Auckland Islands, as well as the outer Great Barrier Reef. Her SPOT tag has become overgrown, but hasn’t yet fallen off. Photo by Mark Enarson.

Phred approaches a shark cage off Edwards Island, near Stewart Island. Photo by Mark Enarson.

Great whites have 24 lower teeth and 26 upper teeth. Behind these, there are five rows of developing teeth that are ready to rotate into place if a tooth gets broken or falls out. Photo by Mark Enarson.

Clinton Duffy about to return a shark the water. Photo by Malcolm Francis.