Phytoplankton Spiral by Eastern Shores of Black Sea – June 7th, 201241.7N 39.4E
This image, which focuses on the eastern half of the Black Sea, reveals impressive amounts of phytoplankton, in milky, light blue and turquoise. This phytoplankton bloom has become more intense over the last few weeks (click here for previous images). The Black Sea is particularly prone to such blooms because its water column has a layered structure. The swirled patterns in the bloom are caused by water currents – the close-up focuses on a particularly tight, round spiral by the eastern shores.