Common dentex (Dentex dentex L.) has been introduced in Mediterranean aquaculture as an alternative to sea bass and sea bream. A pilot study was conducted on the parasitic fauna of cultured common dentex from Aegean sea coast of Turkey. The research was carried out between May and October 2007. 94 fish were examined and totaly 8 protozoan and metazoan genera were found: Amyloodinium Brown and Hovasse, 1946; Trichodina Ehrenberg, 1838; Epistylis Ehrenberg, 1830; Riboscyphidia Jankovski, 1985; Ceratomyxa Thelohan, 1892; Gyrodactylus Nordmann, 1832; Microcotyle Beneden and Hesse; Clavellotis Castro and Baeza, 1984. Gross pathology and peaks of mortalities and morbidities coincided with high abundance of three of them: Amyloodinium sp., Gyrodactylus sp. and Ceratomyxa sp
