On the occurrence of a lessepsian immigrant Scomberomorus commerson (Scombridae) in Izmir Bay (Aegean Sea, Turkey)

This paper reports the presence of Scomberomorus commerson in the Turkish Aegean Sea. A specimen, measuring 840 mm in TL, was captured off Gediz River Delta, Izmir Bay in the northern Aegean Sea on 06 October 2018. This short note contributes to the ichthyofaunal richness of the northern Aegean Sea, while presenting a new record of S. commerson in Izmir Bay.