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Phytoplankton Bloom in Black Sea – May 28th, 2012

42.7N 38.0E

May 28th, 2012 Category: Image of the day, Phytoplankton

Black Sea- May 28th, 2012

The growth of phytoplankton, spread about by currents, creates beautiful blue swirls and patterns in the Black Sea in late May. The phytoplankton growth is fed by nutrients carried in by the Danube, Dnieper, Dniester, Don and other rivers emptying into the sea. It is quite a common phenomenon in this body of water due to the layered structure of its water column, which concentrates the fresh water from rivers by the surface, and due to the farm and urban runoff entering the sea from the many cities and towns along its shoreline. Although phytoplankton are an important part of any ecosystem, an overabudance of the tiny microorganisms can remove most of the oxygen from water (eutrophication), causing the death of fish and other marine life that depend on it.

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