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Animals at Southern Hydrate Ridge

Collage of photos taken from screens in the control van showing microbial mats, hagfish, rockfish, flounders, shells chaff, clam, carbonate cobbles and methane seeps observed at Southern Hydrate Ridge. B-Y. Lee, University of Washington, V18.

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Southern Hydrate Ridge 2018

Bathymetric map of Southern Hydrate Ridge showing core OOI Cabled Array infrastructure and instruments as installed in 2017. The main study site is focused on Einsteins' Grotto that is highly dynamic with explosive bubble plumes and large collapse zones that have formed since 2010. Credit: M. Elend, University of Washington.

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Dive Highlights R1845 Southern Hydrate Ridge

During decent of ROPOS Dive R1845, a bubble plume was detected on the sonar. The plume was followed to the seafloor, with the source at the Bubble 1 site. This area last year was a gently hollow – now it has a small collapse area and two cavities from which significant methane bubbles are emitted. ROPOS documented this area in detail as a possible installation site if Eisntein's Grotto dies re venting. A quick inspection was done on the digital still camera at Einstein's Grotto and the Neptunea snail nursery was imaged. Credit: NSF-OOI/UW/ISS; V15.

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