Introduction to environmental impact assessment of ostracods species southeast of the Caspian Sea

The Ostracods of crustacean live in from the shoreline to a depth of about 2,800 meters. Ostracods are more often found such as lakes, streams, rivers, marshes, lagoons, seas and oceans. These organisms are found in all ecosystems such as freshwater, brackish and marine and it is reasonable are found fossils in all the areas mentioned above. Ostracodes are very important in ancient ecology, especially when foraminifera are either absent or very rare. However the Caspian Sea is a salty taste, bitter too, but quite sweeter from ocean water and 13 per thousand salt dissolved. This area is suitable environment for life ostracode. These creatures are both benthic and pelagic form, but form of pelagic are rare. Species such as leptocythere alifani, Stenocypria fischeri, cyprideis sp., cyprideis littoralis, loxocnoncha gibboida, loxocnoncha eichwaldii, loxocnoncha emendates, and caspiolla liventali are most species are known in the southeast Caspian Sea. in this study was based the species identification of ostracods and the interpretation of environment suitable environment.