First report of Ruppia maritima in coastal waters of the Caspian Sea (Golestan Province)

The species of the Ruppia maritima were Sampled from Caspian Sea coasts and Water Channel of Shrimp Pond in Golestan Province in Summer of 2016.
 Identification and Confirmation of Species Scientific name performed by Internal References and Relasionsheep to Forien Experts. The density of these species usually are very abundant in Caspian Sea coasts . This Species belonged to Kingdom of Plantae, Phylum of Tracheophyta, Class of  Angiosperm, Order of  Najadales, Family of Ruppiaceae, Gunes of Ruppia and species of maritima.  The distribution of the species is very large in world and often is in tropical and semi tropical area of Sea and Ocean. These species growing on mudy and mudy - sandy substrates with rhyzom and are primery productions in sea, also these species are suitable sheltered for important and commercial aquatic nursery. So, a little study performed in these case, because, in this research be identified and introduced these planes as other one of aquatic sourse of Iran.