The fifth dive of the Northeast U.S. Canyons Expedition 2013 was conducted in Hydrographer Canyon, exploring a section of the western wall from approximately 1,300 to 1,420 meters (4,265 to 4,659 feet) depth for deep-sea coral and sponge habitats and other deepwater fauna and to examine canyon geomorphology. At least 12 species of deep-sea coral along with numerous species of associates (shrimps, squat lobsters, isopods, amphipods) on the coral colonies were observed throughout this dive, and a strong current persisted out of the northwest, delivering food to these animals.
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Video courtesy of NOAA Ocean Exploration, Northeast U.S. Canyons Expedition 2013.