Phytoplankton bloom along the coasts of Sicily and Calabria, Italy
This true-color MODIS image shows a phytoplankton bloom along the coasts of Sicily and Calabria, Italy. Phytoplankton is a microscopic marine organism that uses chlorophyll for energy. Sunlight reflects off of the chlorophyll in the phytoplankton to create the blue-green color in the water. This image was acquired April 7, 2002.