In the campaign to restore Chesapeake Bay, oyster sanctuaries rank among the most hotly contested strategies. But new research suggests these no-harvest areas are working, and not only for the oysters. In the campaign to restore Chesapeake Bay, oyster sanctuaries rank among the most hotly contested strategies. But new research suggests these no-harvest areas are working, and not only for the oysters. Plants & Animals Ecology Phys.org – latest science and technology news stories