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Coastal Lake Jamno is located on the Polish middle coast of the Baltic Sea. It has a potential of playing an important role in the tourist development of the region, because of a splendid landscape of its surroundings. Taking into account its very high eutrophication level, it would be necessary to revitalize the lake, using periphyton among other measures. A qualitative-quantitative survey of the epiphytic assemblage was carried out on reed (Phragmites australis), the most common biotic substrate of this lake. Dead and live shoots of the reed were inhabited by epiphytic microalgae (Bacillariophyta, Chlorophyta, and Cyanophyta), micro- and macrozoo periphyton (Protozoa, Nematoda, Rotatoria, Oligochaeta, Cladocera, and larvae of Chironomidae). The dead shoots were 1.4-fold more intensively covered by fouling organisms, than the live ones. The epiphytic assemblages of reed contributed to a substantial enhancement of biodiversity in this ecologically compromised body of water.
Key words: Polish coastal zone of Baltic, estuary, Macoma balthica, abundance and biomass