Some Invasive Species in the Black Sea and Their Effects on the Black Sea Ecosystem

Increasing by the day of the trade and travel by ship caused transport of invasive species in different geographic regions. generally invasive species change their enviroments with ballast water or as attached on the keel. some invasive species can not adaptation and die while transporting, but the others manage with native species and continue living as alien species in transferred region. invasive species compete with native species and affect the ecosystem and biodiversity negatively. in this study, properties of some invasive fauna species (rapana venosa, anadara inaequivalvis, mnemiopsis leidyi, beroe ovata, mya arenaria, balanus improvisus, mugil soiuy, potamopyrgus jenkinsi, asterias rubens) in the black sea, transportation patterns, the impact on native species and the first records are stated