Monday, April 16, 2012

The Sea Without a Coast

The Sargasso Sea is a region in the middle of the North Atlantic Ocean surrounded by ocean currents. It is bounded on the west by the Gulf Stream; on the north by the North Atlantic Current; on the east by the Canary Current;on the south by the North Atlantic Equatorial Current. This system of currents forms the North Atlantic Subtropical Gyre. All the currents deposit the marine plants and garbage they carry into this sea.
The Sargasso is the only sea without shores. The ocean water in the Sargasso Sea is distinctive for its deep blue color and exceptional clarity,with underwater visibility up to 200 feet.
The Sargasso is home to Sargassum,a genus of seaweed that floats on the surface there. The Sargasso also plays a role in the migration of the European and American eel. The larvae of both species hatch there,then return to their respective shores. It is also believed that young Loggerhead Sea Turtles use currents such as the Gulf Stream to travel there,where they use the Sargassum as cover from their predators until they mature.

The Sargasso Sea,shown with Sargassum seaweed afloat.


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