Occurrence Phallusia nigra Savigny, 1816 (Tunicata: Ascidiacea) from Intertidal Hengam Island (Persian Gulf, Iran)

Although there are different groups of invertebrate in the world, little information about ascidian species from Iranian coastal waters exists. The present study attempts to describe the presence and distribution of Phallusia nigra intertidal zone of Hengam Island. P. nigra specimens were collected in intertidal zone traversal From Ship hulls and metal plates were remained in the area. Samples were placed in the closed jar with formaldehyde and then transferred to the laboratory and Taxonomic identification was carried out using authoritative keys and literature. In this study, unlike previous results which limited to shallow waters were influenced by the various phenomenonand and residing in shallow area. It seems that lower depth is not distribution limitation factor. The basic data in the region, a tool to estimate the possible effects on animals as biofouling invasion sites in the future.