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Development of a Macroinvertebrate–based Index of Biotic Integrity (MIBI) for Colombo-Sri Jayewardenepura Canal System

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dc.contributor.author Perera, L. G. R. Y.
dc.contributor.author Wattavidanage, J.
dc.contributor.author Nilakarawasam, N.
dc.date.accessioned 2022-03-24T10:25:26Z
dc.date.available 2022-03-24T10:25:26Z
dc.date.issued 2012
dc.identifier.citation Perera, L. G. R. Y., Wattavidanage, J., Nilakarawasam, N.(2012).Development of a Macroinvertebrate–based Index of Biotic Integrity (MIBI) for Colombo-Sri Jayewardenepura Canal System, Journal of Tropical Forestry and Environment Vol. 2, No. 01 (2012) 10-19 en_US
dc.identifier.uri http://dr.lib.sjp.ac.lk/handle/123456789/10848
dc.description.abstract Macroinvertebrates have been identified as excellent indicators of stream/ wetland health as they respond rapidly to environmental changes and provide short to medium term pollution history records. Current study was aimed to develop a Macroinvertebrate-based Index of Biotic Integrity (M-IBI) which is a new approach to monitor stream/wetland health of Colombo-Sri Jayewardenepura canal system. Sixty eight macroinvertebrate samples were obtained using a D-framed kick net from ten stations namely Kotte, Nawala, OUSL, Kirimandala Mw., Wellawatta, Orugodawatta, St. Sebastian, Beira Lake, Buthgamuwa and Royal Park representing main branches of the system and marshes covering dissimilar environmental conditions of the canal system during the period of Nov. 2008 to June 2009 on monthly basis. Habitat characteristics and some water quality parameters also recorded. For the index development, those ten stations were grouped into two as ’Reference’ and ‘Degraded’ based on their environmental conditions. Then ten candidate metrics were selected out of 41 for M-IBI development after evaluating their sensitivity and appropriateness. Validity of the index was tested with a new independent data set. Scores acquired were positively correlated with DO values (r = 0.578). That concluded the potential of using M-IBI developed for biological monitoring and improving biotic integrity of streams/ wetlands. en_US
dc.language.iso en en_US
dc.publisher Department of Forestry and Environmental Science University of Sri Jayewardenepura en_US
dc.subject Macroinvertebrates, stream health, biotic integrity, Multimetric index, Colombo-Sri Jayewardenepura canal system en_US
dc.title Development of a Macroinvertebrate–based Index of Biotic Integrity (MIBI) for Colombo-Sri Jayewardenepura Canal System en_US
dc.type Article en_US
dc.identifier.doi https://doi.org/10.31357/jtfe.v2i1.32 en_US


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