First record of the alien alga Antithamnion amphigeneum (Rhodophyta) in the Adriatic Sea

Abstract

        We report on the alien red alga Antithamnion amphigeneum from the coast of the Adriatic Sea, which represents the easternmost distribution record in the Mediterranean. Being A. amphigeneum a small filamentous alga, it can be easily overlooked therefore it is probably more widespread. Further surveys on Montenegro and other Mediterranean areas – mainly in harbors and other polluted places - will provide more accurate information on its current distribution.