Tire on Deep Seafloor (image) Monterey Bay Aquarium Research Institute Caption A discarded tire sits on a ledge 868 meters (2,850 feet) below the ocean surface in Monterey Canyon. A recent study documented the types and locations of over 1,000 pieces of marine debris on the deep seafloor in the Monterey Bay region. Credit ©2009 MBARI Usage Restrictions Editorial use only in association with article on MBARI's study of marine debris. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.