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Mark Porter

University of Stirling Scotland and University of Tasmania

About Mark

Mark grew up on the North Sea in Scotland and, like many small boys, decided at the age of eight that he wanted a career involving the sea.

Mark grew up on the North Sea in Scotland and, like many small boys, decided at the age of eight that he wanted a career involving the sea. With a degree in marine biology and a Ph.D. in fish hormones, reproduction and photoreception, he has spent the past twenty years working around the world studying, teaching and, finally, running a business within the aquaculture industry.


Mark has dived in both temperate and tropical waters his entire life, often in pursuit of his passion for shark observation. He has been lucky enough to safely interact with bronze whalers, blue sharks, grey, black tip and white tip reef species; hammerheads; bull and tiger sharks; and white pointers. His passion continues and is now enhanced by sharing with his two young children the incredible life beneath our planet’s waves.

“My professional studies have involved many fish species throughout my career, but sharks have always been my amateur passion. Shark Eyes draws on the widely used mimicry theme employed by many of nature’s prey. Make yourself look bigger or more frightening by having two big, but false, eyes staring back at potential predators. While this may not deter a full force attack, it can deter the inquisitive bite or mouthing so often used by shark species to test out potential prey or food. With thousands of hours under the water, I've been very lucky never to have had an aggressive shark encounter. That said, I have always employed common sense and simple rules. Don't approach sharks or leave the water if they are exhibiting agitated behavior, and don't put yourself in compromised situations such as diving in known shark-inhabited areas, in poor visibility or in low light conditions. At the end of the day, Shark Eyes is another tool in an arsenal of strategies for safer enjoyment of the water. It is simple and inexpensive. Even if it offers only a 1% better chance of avoiding a negative shark encounter, why wouldn't you use it? At the end of the day, I am an amateur shark enthusiast and keen diver. If so many professionals who work every day in waters known to be inhabited by dangerous sharks are willing to endorse this product, I'm going to use it on my own and on my family's water sports gear while continuing to use common sense!”

Get in touch with me and find out how Shark Eyes can help you.