Impact Of Physico-Chemical Parameters On Distribution And Diversity Of Euglenophyceae In Saroornagar Lake, Hyderabad

Abstract

Saroornagar Lake is one of the major fresh water-bodies of Hyderabad. The study deals with the
influence of physico-chemical parameters on the distribution and diversityof Euglenophyceae. Samples were
collected from four sampling stations for a period of two years and comprehensive physico-chemical analysis
was carried out.Linear multiple regression analysis (MRA) has been carried out with SPSS software to evaluate
the importance of various physico-chemical variables on the growth and development of Euglenophyceae. The
physico-chemical parameters played an important role in distribution and diversity of algae. The growth of
Euglenophyceae was positively influenced by sulphates, Free CO2, calcium, total hardness, COD and
bicarbonates. Negative influence on euglenoids was exerted by temperature, organic matter, total solids, total
dissolved solids, magnesium and chlorides. Euglenoid flagellates exhibited higher peaks in winter and found very
low in summer. Diversified species of Euglena, Lipocinclis, Phacus and Trachelomonas were reported. Euglena
acus, E. gracillis, E. oxyuris, Lipocinclis ovum and Trachelomonasvolvocina represent high organic pollution of
the lake and indicate high degree of organic pollution.