Mystery Trawl Door in Cordell Bank
The more we explore our oceans, the more we are constantly surprised by the diversity of life in extreme environments. Some discoveries, however, remind us that our human impact can even reach over half a mile deep in the sea. This trawldoor, used with trawl fishing nets to scrape the seafloor, was found 945m in Cordell Bank National Marine Sanctuary.
Continuing north along the California coast to Cordell Bank National Marine Sanctuary (CBNMS), offshore the San Francisco Bay Area, Nautilus will visually survey deep-water habitat that has never been explored and characterize habitat, species, and communities. Recently expanded to protect 1,286 square miles of offshore habitat including continental shelf, Cordell Bank, and Bodega Canyon, as well as smaller canyons along the continental slope, most newly added areas of CBNMS have not been explored.