Chemosynthetic mussels encrusting a carbonate mound at one of the so-called Norfolk Canyon seeps at ~1,400 meters water depth. Bubbles that make up one of the observed water column plumes are visible on the left side. Image taken in 2013 by the Deep Discoverer ROV, managed by the NOAA Office of Ocean Exploration and Research.

Chemosynthetic mussels encrusting a carbonate mound at one of the so-called Norfolk Canyon seeps at ~1,400 meters water depth. Bubbles that make up one of the observed water column plumes are visible on the left side. Image taken in 2013 by the Deep Discoverer ROV, managed by the NOAA Office of Ocean Exploration and Research. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2013 Northeast U.S. Canyons Expedition.

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