First and additional records of alien crustacean decapods in the Aegean Sea, Turkey

The present paper includes report of the three alien decapod crustaceans collected from surveys performed on Gokova Bay, Turkey, southern Aegean Sea. Two of which, alien penaeid shrimps, Farfantepenaeus aztecus and Trachysalambria curvirostris, are here reported for the first time while a xanthid species, Atergatis roseus, is reported for the second time from the Turkish coast of the Aegean Sea. The findings show that their distributions are expanding northwards, along the Anatolian coasts of the Aegean Sea, approaching the colonization of the whole south basin.