Abstract:Physicochemical as well hydrobiological investigations were made in two large tropical ox-bow lakes at monthly intervals during the period of two annual cycles of which the second one experienced an unusual drought. The monthly mean concentrations of total alkalinity, hardness, chloride, phosphate and nitrate of water were greatly increased during the drought-affected second year compared with the first year. Prolonged summer in the region caused about 5 -25-fold increases in chlorophyll a concentration of nan… Show more
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