期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2013
卷号：2
期号：6
页码：54-60
语种：English
出版社：International Science Community Association
摘要：This paper presents the results of a study that was conducted to determine the seasonal dynamics of phytoplankton population and nutrient status of water in Behlol nullah (Jammu). A total of 49 species belonging to four different groups (Euglenophyceae, Chlorophyceae, Bacillariophyceae and Cynophyceae) were recorded during the study period with a maxima in the winter season followed by summer and then monsoon. Percentage distribution of Euglenophyceae, Chlorophyceae, Bacillariophyceae and Cynophyceae individuals to total phytoplanktonic population were calculated. Heavily polluted sites exhibited lower phytplankton diversity and abundance as compared to least polluted sites. Shannon diversity and Marglefs species richness was highest at St. 1 while Simpsons dominance and Pielous evenness was maximum at St. 4 and St. 5 respectively. Highest value of Sorensons similarity was recorded between St. 3and St. 4 while Morisita Horn similarity was maximum between St. 1 and St. 3. Pearson correlation coefficient were used to analyze the data. Enlistment of higher concentration of Spirogyra sps. Stigeoclonium sps. and Oscillatoria species in the study area indicates organic pollution in the Behlol nullah which is mainly due to industrialization, domestic sewage and human activities which in course would finish the water body. A proper biological and chemical treatment of domestic sewage and industrial effluents before discharge to Behlol Nullah is, therefore suggested.
