This research deals with comparable study of the specific composition of assemblages
gastropoda and migratory species in four regions of Syrian coast, which differed by substrate
nature and their exposure to pollution resources and rivers estuaries
, They are as fallow:The
Southern Region of Lattakia, AL Bhyss and AL Moelh South of Jableh, Estuary Assin. This
research was done between April 2010 and April 2011. The samples were collected from the
supralittoral ,littoral and sublittoral regions at depth 3m.
