Northernmost record of the dusky spinefoot Siganus luridus in the Aegean Sea (Turkey coast)

This record represents the northernmost occurrence of Lessepsian migrant fish Siganus luridus in the Aegean Sea. A single specimen was caught off the coast of Assos, Edremit Bay, in November 2014 by trammel net at a depth of about 2-3 m on a sandy, rocky bottom mixed with Posidonia. Here, the morphometric and meristic characteristics of the specimen are identified and the dispersion of the species in the Mediterranean Sea is briefly discussed.