Freshwater snails of east Hammar Marsh and Shatt Al-Arab During 2008-2009

الملخص EN

Richness and abundance of some freshwater snails were determind in Basrah province southern Iraq since October 2008 until July 2009, Six stations of East Hammar marsh and it's lower reaches were chosen for getting samples for aquatic gastropods.

Ten species were found, Bellamya bengalensis (Lamarck, 1822), Bellamya unicolar (Olivier, 1804), Bithynia hareerensis (Glӧer, and Nasser, 2009), Gyraulus ehrenbergi (Beck, 1837), Melanoides tuberculata (Müller, 1774), M.

costata (Olivier, 1804), M.

nodosa (Fѐrussac, 1823), Physlla acuta (Draparnaud, 1805), Lymneae auricularia (Linnaeus,1758), and Theodoxus jordani (Sowerby, 1832).

Individual density varied from zero to more than 100 ind./metre2 for many species according to spatial and temporal changes.