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Contact Marine Explorer Ryan Johnson

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  • Jo Sarsby Personal Management Ltd.
  • Email: jo@josarsby.com
  • Tel: + 44 117 973 8589

Acoustic tracking great white sharks

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About the Project

Acoustic telemetry has been the cornerstone of my great white shark research since 2000. By placing acoustic transmitters on sharks in Mossel Bay, we can follow the fine scale movements of great whites in the bay, and we can see where they prefer to hang out, the depths they swim at, how they hunt around Seal Island, and also how often humans potentially encounter sharks. So far we have tracked 17 sharks for over 1000 hours. In 2005, we first witnessed the sharks hunting seals a night time, a previously undocumented event. This finding was the basis of the documentary Sharkville!

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Acoustic Tracking Great White SharksAcoustic Tracking Great White SharksAcoustic Tracking Great White Sharks

Acoustic Tracking Great White SharksAcoustic Tracking Great White SharksAcoustic Tracking Great White Sharks

Who is Ryan Johnson?

Ryan Johnson is a Marine Biologist and explorer. His expert knowledge of great white shark biology and behaviour has led to him presenting a number of specialist TV productions by National Geographic, Discovery Channel and more. Back to top

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