Influence of environmental processes on indicators of water quality in the Hanabanilla reservoir, Cuba

Abstract

The objective of this research was to analyze the environmental processes that influence the water quality indicators of the Hanabanilla reservoir, located in one of the highest priority basins in Cuba. Results corresponding to water samples collected at 4 points of this reservoir during 2014-2015 were analyzed. Thermal stratification was evident during the rainy season with the development of the thermocline at depths between 11-13 meters. This process showed influence on the behaviors of pH and DO, which were related to deterioration signs in other indicators established in the Cuban standards consulted. However, the water quality in terms of trophic status, did not present eutrophic conditions during the analyzed period. The results showed some significant correlations between physical-chemical indicators and significant differences between the two seasons, reflecting the influence of the environmental processes on some water quality indicators. Besides, the cluster analysis allowed the classification of water quality in this reservoir.