Your search found 7 records
1 Silva, E. I. L. 1996. Water quality of Sri Lanka: A review on twelve water bodies. Kandy, Sri Lanka: IFS. vii, 141p.
Water resources ; Water quality ; Rivers ; Estuaries ; Lagoons ; Reservoirs ; Tanks ; Canals ; Watersheds ; Land use ; River basins ; Water pollution / Sri Lanka / Kelani River / Negombo Lagoon / Bolgoda Lake / Koggala Lagoon / Kotmale Reservoir / Kala Wewa / Rajangana Tank / Kandy Lake / Meda Ela / Hamilton Canal / Hikkaduwa Marine Sanctuary
(Location: IWMI-HQ Call no: 333.91 G744 SIL Record No: H019963)
2 Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.) 2004. Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.1. Colombo, Sri Lanka: National Water Resources Secretariat. 454p.
Water resource management ; River basins ; Stream flow ; Climate change ; Rainfall-runoff relationships ; Simulation models ; Hydrology ; Erosion ; Precipitation ; Natural disasters ; Flood control ; Irrigation management ; Mathematical models ; Recharge ; Aquifers / Sri Lanka / China / Albania / India / Pakistan / Australia / Bangladesh / Thailand / Japan / Uganda / Brunei / Kelani River Basin / Upper Kotmale Basin / Upper Mahaweli / Kandy Lake / Rekawa Lagoon / Walawe Basin / Deduru Oya / Yangtze River / Hilkot Watershed / Khlong U-Tapo River Basin / Khuwae Noi River Basin / Kerala / Tamil Nadu / Vaippar Basin / Bagmati Reservoir / Cauvery river / Achankovil River / Cuddalore Basin / Tokyo / Kallar River Basin
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039492)
3 Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.) 2004. Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.II. Colombo, Sri Lanka: National Water Resources Secretariat. pp.455-787.
Water resource management ; Water resources development ; Rivers ; Reservoirs ; Dams ; Soil moisture ; Remote sensing ; Climate change ; Groundwater ; Aquifers ; Water pollution ; Irrigation management ; Irrigation canals ; Participatory management ; Farmer participation ; Water harvesting ; Recharge ; Water policy ; Legal aspects ; Water user associations / Asia / India / Nepal / Sri Lanka / Uganda / Brunei / China / Rekawa Lagoon / Walawe Basin / Deduru Oya / Mahaweli River / Kandy Lake / Hanguranketha / Cauvery River / Cuddalore Basin / Kerala / Tamil Nadu / Mangla Dam / Tokyo
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039529)
4 Sharaff, F. F.; Silva, E. I. L.; Samaradiwakara, S. R. M. S.; Kangara, K. M. W. S. B.; Karunathilake, K. M. B. C.; Weerasinghe, W. M. D. 2004. Trophic evolution in Kandy Lake: An outcome of urban development, land use and demographic change. In Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.). Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.II. Colombo, Sri Lanka: National Water Resources Secretariat. pp.506-513.
Lakes ; Watersheds ; Water pollution ; Water quality ; Land use ; Water management / Sri Lanka / Kandy Lake
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039537)
5 Silva, E. I. L. 2004. Phytoplankton characteristics, trophic evolution, and nutrient dynamics in an urban eutrophic lake: Kandy Lake in Sri Lanka. In Reddy, M. V. (Ed.). Restoration and management of tropical eutrophic lakes. Enfield, NH, USA: Science Publishers, Inc. pp.227-270.
Lakes ; Ecosystems ; Phytoplankton ; Water pollution ; Water quality ; Nutrients / Sri Lanka / Kandy Lake
(Location: IWMI HQ Call no: P 7998 Record No: H041121)
6 Jayatissa, L. P.; Silva, E. I. L.; McElhiney, J.; Lawton, L. A. 2006. Occurrence of toxigenic cyanobacterial blooms in freshwaters of Sri Lanka. Systematic and Applied Microbiology, 29: 156-164.
Phytoplankton ; Cyanobacteria ; Eutrophication ; Water quality ; Water pollution ; Reservoirs ; Tanks ; Irrigation water / Sri Lanka / Tissawewa / Colombo Lake / Kandy Lake / Situlpawwa Lake
(Location: IWMI HQ Call no: P 7999 Record No: H041123)
A previous pioneering study of freshwater bodies in Sri Lanka revealed the presence of toxic cyanobacteria in three out of four water bodies tested. It was therefore important to perform a more detailed investigation into the presence of cyanobacteria and their toxins throughout Sri Lanka. The country has a long history of well-planned water management with the agricultural economy and drinking water supply still dependent on thousands of man-made tanks. Seventeen reservoirs from different user categories and different climatic zones were selected to study variations in phytoplankton communities with relation to major nutrients, with particular emphasis on cyanobacteria. The study was carried out during a two-year period and heavy growths or blooms of cyanobacteria observed during the study period were tested for microcystins. The results clearly categorised the 17 reservoirs into four groups parallel to the classification based on the user categories of water bodies. Biomass of total phytoplankton, the abundance of cyanobacteria, the dominance of Microcystis spp. and concentration of nitrate (N) and total phosphorous (P) were the lowest in drinking water bodies and the highest in aesthetic water bodies. Irrigation water bodies showed the second lowest values for phytoplankton biomass, and concentration of N and P, while hydropower reservoirs showed the second highest values for the same parameters. The fraction of cyanobacteria in irrigation waters was higher than that in hydropower reservoirs, but surprisingly the dominance of Microcystis spp. was reversed. Possible reasons for these variations are discussed. More than half of the bloom material tested contained microcystins up to 81microgl(-1). Our findings indicate the potential for high-risk situations due to toxigenic cyanobacterial blooms in susceptible freshwaters of Sri Lanka.
7 Silva, E. I. L. 2003. Emergence of a Microcystis bloom in an urban water body, Kandy Lake, Sri Lanka. Current Science, 85(6): 723-725.
(Location: IWMI HQ Call no: P 8000 Record No: H041124)
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