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Phytoplankton in Black Sea and Clear Waters of Caspian Sea – June 6th, 2012

39.2N 41.9E

June 6th, 2012 Category: Phytoplankton

Black Sea - June 5th, 2012

The Black Sea appears almost completely covered by a phytoplankton bloom (see full image to observe more of the sea). The bright blue color is mostly due to the dense presence of these microorganisms, although some of the opacity here is due to sun glint off the water.

The intensive coccolithophora blooming in the Black Sea is quite a typical phenomenon; however this year it occurred earlier than normal. Scientists report that the probable reason for such an intensive blooming in 2012 that started a bit earlier than usually was the cold winter and the related convection. In terms of blooming, intensive were the years of 2006 and 2008 following quite cold winters. At the same time no intensive blooming was monitored over the past 3 year period.

The Caspian Sea, to the east, and the Persian Gulf, to the south, show no such signs of intense phytoplankton growth, although more reduced levels of the tiny microorganisms are likely present in the sediments visible although the shorelines of these bodies of water.

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