Asian-Australasian Journal of Bioscience and Biotechnology Assessment of physicochemical conditions and plankton populations of the river (original) (raw)

The study was conducted to investigate the physicochemical and biological aspects of the river Padma in three sampling stations viz Mawa, Godagari and Paksi from January 2014 to December 2014. Ten physical and nine chemical parameters of water and plankton community both phytoplankton and zooplankton of this aforesaid area were studied. Physicochemical parameters of water such as temperature, pH, hardness, alkalinity, dissolve oxygen (DO), free carbon dioxide (CO 2), total dissolve solids (TDS), turbidity, biological oxygen demand (BOD) and chemical oxygen demand (COD) were studied. Maximum water depth 23.9±6..5 (Nos./l) in paksi respectively. Total sixty genera under six classes of phytoplankton were observed and twenty two genera of zooplankton under four families were identified. Chlorophyceae, Bacillariophyceae, Cyanophyceae, Xanthophyceae, Euglenophyceae and Dinophyceae were the major groups of phytoplankton and Rotifera, Copepod and Cladocera were the major groups of zooplankt...