Epiphytic algae occurring on Ranunculus spp. in the ponds near lake Hazar and theirseasonal variations

In this study, algae occurring as pelagic and epiphytic forms and their seasonal variations were investigated in two ponds near Sivrice Town for a period of a year (between September 2006 and August 2007). Ranunculus rinoii and Ranunculus aquatilis were the host macrophytes in the ponds for epiphytic algae. Diatoms were the most conspicuos algae with respect to number of species and frequency of occurrence in both ponds.A total of 69 taxa belonging to Bacillariophyta (44), Chlorophyta (14), Cyanophyta (7), Euglenophyta (1), Chrysophyta (1) and Dinophyta (2) were recorded during the study.Number of taxa for pelagic algae were more than that recorded for epiphytic algae. Changes in epiphytic algal community were discussed in relation to some chemical variables.