Your search found 2 records
1 Guruge, W. A. H. P.; De S. Amarasinghe, N. J.; De Silva, M. C. S.; Priyantha, C. H. 2003. Water quality monitoring using macroinvertebrates as biological indicators in streams of Nilwala River Basin, Sri Lanka. Chiang Mai Journal of Science, 30(3):219-226.
River basins ; Water quality ; Monitoring ; Biological indicators ; Invertebrates / Sri Lanka / Nilwala River Basin / Matara District
(Location: IWMI HQ Call no: P 8016 Record No: H041540)
Present study was carried out to evaluate quality of water in eight selected sites in the head waters and down streams of Nilwala River Basin, in Matara district. Four sites (Stl, St2, St3 and St4) are located in the upper catchment area while the rest of the sites (St5, St6, St7, and St8) are in middle and lower catchment, covering 68 km along the length of the river. Macroinvertebrates were sampled using surber sampler and by lack sampling, from September 1999 to February 2000. Macroinvertebrates collected and sorted out were identified up to family level. Taxa or family richness, modified family biotic index, Average Score Per Taxa (ASPT) values based on Biological Monitoring Working Party (BMWP) adopted for India, number of Ephemeroptera, Plecoptera and Trichoptera (EPT) families, ratio of EPT and Chronomids abundance, percent contribution of dominant family were calculated using collected data on macroinvertebrates. Taxa or family richness and number of EJ?T families were highest in head stream sites. Highest BMWP and ASPT values showed sites in head streams, while these values were lower in sites St7 and St8. Physicochemical parameters such as conductivity and biologcal Oxygen demand were highest in sites located in down streams, while these values were lower in sites in head stream. Values calculated from biological monitoring methods have revealed the occurrence of high quality water in head stream sites and low quality water in down stream sites.
2 United Nations Environment Programme (UNEP). 2017. A framework for freshwater ecosystem management. Vol. 2. Technical guide for classification and target-setting. Nairobi, Kenya: United Nations Environment Programme (UNEP). 72p.
Freshwater ; Ecosystem management ; Frameworks ; Guidelines ; Sustainable Development Goals ; Ecosystem services ; Groundwater ; Water quality ; River basins ; Lakes ; Wetlands ; Coastal area ; Estuaries ; Biological indicators ; Ecological indicators ; Chemicophysical properties ; Monitoring ; Assessment
(Location: IWMI HQ Call no: e-copy only Record No: H048537)
http://wedocs.unep.org/bitstream/handle/20.500.11822/22242/Framework_Freshwater_Ecosystem_Mgt_vol2.pdf?sequence=1&isAllowed=y
https://vlibrary.iwmi.org/pdf/H048537.pdf
https://vlibrary.iwmi.org/pdf/H048537.pdf
(3.34 MB) (3.34 MB)
Powered by DB/Text WebPublisher, from
