Aspects of limnological study of Wusum reservoir in Makeni of Bombali District, Northern Region, sierra Leone

Abstract

Seasonal changes in physico-chemical parameters of Wusum reservoir was investigated for twelve months in three selected stations. Water samples were taken from the surface of the reservoir and transported to the laboratory for analysis. Temperature was determined in-situ. Hydrogen ion concentration, conductivity, turbidity, nitrate-nitrogen and phosphate-phosphorus were determined in the laboratory. The results showed that temperature and conductivity were significantly higher (P<0.01) during the dry season
whereas turbidity and phosphate-phosphorus were significantly higher (P<0.01) during the wet season. Correlation analysis showed that temperature was positively correlated with conductivity (P<0.05) and negatively correlated with turbidity (P<0.05), nitratenitrogen (P<0.05) and phosphate-phosphorus (P<0.01).