The area we surveyed on Retriever Seamount in 2014 had a high diversity of sponges, including this one with several crinoids using the sponge to elevate their positions in the water column.
High Diversity of Sponges
Image courtesy of NOAA Ocean Exploration, Our Deepwater Backyard: Exploring Atlantic Canyons and Seamounts 2014. Download largest version (jpg, 1.5 MB).

The area we surveyed on Retriever Seamount in 2014 had a high diversity of sponges, including this one with several crinoids using the sponge to elevate their positions in the water column.

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