Samar Cave: seasonal analysis of phototrophic microorganisms, ecological and biofilm parameters

Abstract

Cyanobacteria and algae, ecological, and parameters of biofilm developed at rock substratum at the entrance of Samar Cave (Serbia), were analysed seasonally. Of 141 taxa, Cyanobacteria were dominant (coccoid forms prevailed – the most diverse was Gloeocapsa), followed by Bacillariophyta, then Chlorophyta. Diversity was higher in December and March, lower in May and August. Chl a values and biofilm water content had the same trend and were correlated with Cyanobacteria according to PCA.