Phytoplankton Bloom in the Black Sea

This image of the Black Sea, acquired on June 20, 2006, by the MODIS on the Aqua satellite, shows swirling blooms of phytoplankton coloring the surface waters blue and green. The large volume of freshwater flowing into the Black Sea from large European rivers, including the Danube and Dnieper Rivers, makes the sea much less salty than open oceans. The freshwater flow also delivers many nutrients, which are washed into the sea from land. These nutrients support large blooms of phytoplankton: microscopic photosynthetic organisms (algae and bacteria). The chlorophyll and other pigments the organisms use for photosynthesis change the way light reflects off the surface, and these changes are visible in satellite imagery.

---

Jeff Schmaltz

Published June 27, 2006
Data acquired June 20, 2006

Source:

Aqua > MODIS

Collection:

MODIS Image of the Day