A water sample taken from under the ice is poured into a filter unit.

A water sample taken from under the ice is poured into a filter unit to collect the tiny phytoplankton living in the water. These phytoplankton are single-celled plants that provide the basis of all food in the ocean for many animals. Image courtesy of The Hidden Ocean, Arctic 2005 Exploration, NOAA-OE.

Related Links

The Hidden Ocean, Arctic 2005

The Hidden Ocean, Arctic 2005: June 29 Log

NOAA Ocean Explorer Gallery