High Quality Content by WIKIPEDIA articles! Callum Roberts is a marine conservation biologist, oceanographer, author and research scholar in the Environment Department of the University of York in England. His extensive work is dedicated to examining the impact of human activity on marine ecosystems particularly on coral reefs. In St. Lucia and Saba in the Caribbean, he has studied the effects of marine reserves closed to all fishing. His studies revealed both the huge scale of human impacts on the sea, and the means of protecting marine ecosystems from such effects. He is now working to gain acceptance for marine reserves more widely, including in Britain and Europe where he is helping fishermen to promote the concept within the industry and to politicians. Callum has served on a US National Research Council Committee on Marine Protected Areas and has also been a member of the Marine Reserves Working Group, headed up by Jane Lubchenco, Steve Gaines and Steve Palumbi at the National Center for Ecological Analysis and Synthesis in Santa Barbara. With this group he sought to develop a more robust theoretical underpinning for the design and implementation of marine reserves.