Oceanographic data and ROV dive-related multimedia and information collected during the EX1502L3 (Oceano Profundo 2015: Exploring Puerto Rico's Seamounts, Trenches, and Troughs) expedition on NOAA Ship OKEANOS EXPLORER in the North Atlantic Ocean from 2015-04-09 to 2015-04-30 (NCEI Accession 0127387)

This dataset contains oceanographic data collected in the US EEZ surrounding Puerto Rico and the US Virgin Islands. Operations explored largely uncharted deep-sea ecosystems and seafloor, and investigated unknown and poorly known areas, including the Puerto Rico Trench, Muertos Trough, Mona Passage, and the Virgin Islands Trough. This leg featured some of the deepest remotely operated vehicle (ROV) dives ever conducted in the region and collected critical deep-water environmental data that will improve ecosystem understanding and inform federal and local resource managers. ROV dives were conducted during the day, to a maximum operating depth of 6000 m, while CTD casts occurred when the vehicle was on deck.