David is the Founder and Director of the shark and marine conservation nonprofit “Shark Stewards”. A marine biologist, David is a National Geographic Explorer and a research associate at the California Academy of Sciences where he conducts shark studies and media production in the San Francisco Bay and in SE Asia. He is also an avid filmmaker and sits on the board of the International Ocean Film Festival. Shark Stewards introduced the first North American shark fin trade ban in California and led several states and international movements limiting the overfishing of sharks and the shark fin trade.

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