NSW Department of Primary Industries

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David Harasti

I am a marine scientist in Australia working on threatened marine species (sharks, seahorses and fish) for the past 12 years. I currently work as Research Scientist for the Port Stephens-Great Lake Marine Park and in my spare time finishing a PhD on the biology, ecology and conservation of the White's Seahorse (Hippocampus whitei). I have been diving for 15 years and in that time I developed a passion for marine life and underwater photography. In particular I focus on photography of unusual and rare marine species which has resulted in hundreds of images used in various fish and nudibranch identification guides. I have developed the Marine Species Database ( and a website ( to assist divers in identifying the marine species they may encounter on their dives.

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