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Algal Bloom in Adriatic Sea, Italy – September 21st, 2008

September 21st, 2008 Category: Image of the day

September 17th, 2008 - Algal Bloom in Adriatic Sea, ItalyItaly

September 17th, 2008 - Algal Bloom in Adriatic Sea, Italy

Algal Bloom Detail

Algal Bloom Detail

An algal bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Typically, only one or a small number of phytoplankton species are involved, and some blooms may be recognized by discoloration of the water resulting from the high density of pigmented cells. Although there is no officially recognized threshold level, algae can be considered to be blooming at concentrations of hundreds to thousands of cells per milliliter, depending on the severity. Algal bloom concentrations may reach millions of cells per milliliter. Algal blooms are often green, but they can also be yellow-brown or red, depending on the species of algae.

Bright green blooms are a result of blue-green algae, which are actually bacteria (cyanobacteria). Blooms may also consist of macroalgal, not phytoplankton, species. These blooms are recognizable by large blades of algae that may wash up onto the shoreline. “Black water” is a dark discoloration of sea water, first described in the Florida Bay in January 2002.

The Adriatic Sea is a body of water separating the Italian Peninsula from the Balkan peninsula, and the system of the Apennine Mountains from that of the Dinaric Alps and adjacent ranges. The Adriatic Sea is a part of the Mediterranean Sea.

Algal Bloom Detail

Algal Bloom Detail

The western coast is Italian, while the eastern coast runs mostly along Croatia and Albania but lesser parts belong to Slovenia, Bosnia and Herzegovina and Montenegro.

source Wikipedia

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