Year: 2019, Issue: June
A comparative study of primary productivity of phytoplankton at two different sites of Hardia wetland of Saran district of North Bihar, India
Primary productivity, Phytoplankton, Hardia wetland, Saran district, North Bihar.
Present investigation is on Hardia wetland of Saran district on the phytoplankton. The wetland is qualitatively and quantitatively rich in phytoplankton composition. Altogether 51 species of phytoplankton were recorded and are represented by four groups namely Bacillariophyceae, Chlorophyceae, Myxophyceae and Euglenophyceae. As far as diversity is concerned Bacillariophyceae were represented by 19 species, followed by Chlorophyceae 18 species, Myxophyceae 11 species and Euglenophyceae 3 species. The dominance of diatoms were observed among phytoplankton followed by blue green algae, green algae and euglenophytes. High chloride and silicate level and aquatic physico-chemical factors may be responsible for the dominance of diatoms. The phytoplankton were dominant in summer, mainly due to favourable thermal condition and high nutrients level.