Science on the SPOT: Marine Sanctuary Patrol Flight

The Channel Islands, Monterey Bay, Gulf of the Farallones and Cordell Bank National Marine sanctuaries cover more than 9,500 square miles of ocean habitat. Patrolling such an immense area by boat would take days, but now sanctuary managers are taking to the air in a rugged de Havilland DHC-6 Twin Otter bush plane to get a bird's eye view.