Bathymetric map summarizing operations conducted during Leg 1 of the Northeast U.S. Canyons 2013 Expedition. The grey background shows bathymetry data previous acquired by NOAA Ship Okeanos Explorer, and the colored bathymetry is new data acquired during the cruise. Also shown are the locations where ROV dives and CTD casts were conducted and XBTs were deployed to acquire data.

Three sites were investigated during the cruise where sonar data detected what appeared to be gas plumes in the water column. Further investigation revealed cold seeps and extensive chemosynthetic communities at all three locations. Shown in this image, chemosynthetic mussels of varying sizes were present at New England Seep Site 1. The red lasers (red dots in photo) shown in the photo are 10 centimeters apart and were used throughout the dive to provide scale. Image courtesy of NOAA Okeanos Explorer Program, 2013 Northeast U.S. Canyons Expedition.

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Related Links

Northeast U.S. Canyons Expedition: Leg 1 Mission Summary

Northeast U.S. Canyons Expedition 2013

NOAA Ship Okeanos Explorer