By Jon Day
Director of Ecosystem Conservation and Sustainable Use, Great Barrier Reef Marine Park Authority, Townsville, Australia. E-mail: j.day [at] gbrmpa.gov.au
Marine protected areas, especially large multiple-use areas like the Great Barrier Reef Marine Park on Australia's east coast, provide many lessons for marine managers on how to implement ecosystem-based management. However, MPAs are only part of the equation for EBM.