Rock with little biological (at least large) activity visible. The white object
could be a sponge, or it might be anthropogenic trash.
Image ID: expl7952, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Gulf of Mexico, North
Photo Date: 2012 March 24
Credit: NOAA Okeanos Explorer Program, Gulf of Mexico 2012 Expedition
• High Resolution Photo Available