p. 109 - 134 EVOLUTION DU PROCESSUS DE POLLUTION MYCOLOGIQUE SUR LE LITTORAL ROUMAIN DE LA MER NOIRE (II) Mucader Apas Romanian Marine Research Institute Constanta Abstract This paper includes the data resulted from the mycological analysis of 2,000 sea water samples collected from a network of 12 littoral marine stations between 1986 and 1994. Qualitative and quantitative determi- nations of the saprophytic and pathogenic fungi belonging to the classes Ascomycetes and Deuteromycetes have been performed. The emergence of fungus blooms is described as well as the predominant micro-fungus groups generating such phenomena at the Romanian Black Sea littoral. Key words: Black Sea, saprophytic and pathogenic fungi, fungus blooms