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One reason we are exploring seamounts in the Gulf of Alaska is to learn more about the biology of deep-sea corals. You are looking at an Antipatharian, or black coral, in 1,400 m of water on Denson Seamount. The polyps at the base are elongated, suggesting they may perform a defensive function, deterring predators like sea stars and gastropods that prey upon the polyps.

Related Links

Gulf of Alaska 2004

Gulf of Alaska 2004: August 5 Log

NOAA Ocean Explorer Gallery