Sea of Marmara about 22 parts per thousand, which is slightly greater than that of the Black Sea, but only about two-thirds that of most oceans. The water is much more saline at the sea bottom, averaging salinities of around 38 parts per thousand, similar to that of the Mediterranean Sea. This high-density saline water, like that of the Black Sea, does not migrate to the surface. Water from the Susurluk, Biga (Granicus) and Gonen Rivers also reduces the salinity of the sea, though with less influence than on the Black Sea. With little land in Thrace draining southward, almost all of these
Buckingham Arm clay is retained by an upper layer of synthetic geotextile material. In order to maintain water levels on this section, a solar powered pump is to be installed during the winter of 2016/2017, which will pump water from the River Great Ouse. Buckingham Arm The Buckingham Arm is a canal that once ran from Cosgrove, Northamptonshire to Buckingham (in England). It was built as an arm of the Grand Junction Canal, in two separate phases, opening in 1800 and 1801. It was disused from 1932, but was not finally abandoned until 1964. It is now the subject of a restoration