Seasonal variations of epipelic diatoms in Golbasi Lake with relation to physical-chemical variables

Abstract

Epipelic diatoms were collected monthly for a year ;from five sampling stations in the Golbasi Lake to investigate the relationship between seasonal variations of epipelic diatoms and environmental factors. A total of seventy diatom taxa were determined. Cyclotella comta, C. meneghiniana, C. ocellata, Navicula cryptocephala and N. reinhardii were the most conspicuous diatoms in tern-is of frequency of occurrence and relative abundance in the epipelic community. Some of the epipelic diatoms were noticeable for their occurrence only at certain sampling stations. Water temperature was found to be a more important factor in steering the growth of epipelic diatoms in this study.