Spatial and Temporal Dynamics and Parameters of Growth of Toxic Cyanobacteria in Nuwara Wewa and Nachchaduwa Wewa in Sri Lanka
American Journal of Environmental Protection
Volume 4, Issue 1, February 2015, Pages: 23-28
Received: Dec. 3, 2014;
Accepted: Dec. 22, 2014;
Published: Jan. 20, 2015
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Mohamed Cassim Mohamed Zakeel, Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri Lanka
Prathiba Aruni Weerasinghe, Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri Lanka
Banumu Arachchige Dilhani Ganga Kumari, Postgraduate Institute of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
Hetti Arachchige Mangalika Wickremasinghe, Department of Agricultural Biology, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
Cyanobacterial toxins available in drinking water pose a major health problem to humans and animals. Nuwara wewa and Nachchaduwa wewa are two important reservoirs supplying water for domestic purposes in Anuradhapura, Sri Lanka. As cyanobacterial toxins are resistant to deactivation by heat, it is important to control the proliferation of cyanobacteria in these reservoirs. Therefore, making an inventory of cyanobacterial variations with respect to time and space is imperative. Distinct temporal variations of temperature, pH, turbidity, dissolved oxygen and cyanobacteria density were observed in both reservoirs. Strong positive correlations existed between the above physico-chemical parameters of water and the cyanobacterial density in both reservoirs. These parameters can therefore be used as good indicators to assess the status these reservoirs with respect to cyanobacterial density and distribution.
Mohamed Cassim Mohamed Zakeel,
Prathiba Aruni Weerasinghe,
Banumu Arachchige Dilhani Ganga Kumari,
Hetti Arachchige Mangalika Wickremasinghe,
Spatial and Temporal Dynamics and Parameters of Growth of Toxic Cyanobacteria in Nuwara Wewa and Nachchaduwa Wewa in Sri Lanka, American Journal of Environmental Protection.
Vol. 4, No. 1,
2015, pp. 23-28.
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