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Sand tissue. Lilaste, Riga bay. (Photo: Lena Konovalova)
Sandy Bottoms
Sandy bottoms are typical for Lithuanian coastal waters near Curonian Spit as well in some parts of Latvian seabed.

Sandy bottom habitats hold pretty smaller biodiversity than reefs. This is due to the conditions in the habitats. And the conditions are quite harsh. The currents or waves move sand particles situated on the surface of the bottom. This scrapes off the organisms, which are not adapted to such constant impact. Seaweeds are especially sensitive to such pressure. Nevertheless, some molluscs manage to live there and several bird species like Velvet Scoter feed mainly in sandy bottoms.