2012
DOI: 10.5846/stxb201105160630
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The assessment of river health using Benthic-Index of biotic integrity for Wenyu River

Abstract: By applying the Benthic鄄Index of Biotic Integrity (B鄄IBI) to benthic macro鄄invertebrate and water quality data, we evaluate the health of Wenyu River and explore the relationship between water quality and B鄄IBI. Macro鄄invertebrate and water samples are collected from 22 river sites, where 4 are unimpaired or minimally impaired sites and 18 are impaired sites. We mainly consider twenty candidate metrics of macro鄄invertebrate and twelve water quality indexes. These twenty candidate metrics are total number of ta… Show more

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“…In contrast, the strongly disturbed sites were dominated by resistant species. The total number of taxonomic units (M23) has always been a commonly used indicator 43,44 , closely related to disturbance. The percentage of lter-feeder individuals (M59) signi cantly decreased with increasing disturbance, while the percentage of collector individuals (M60) signi cantly increased.…”
Section: Discussionmentioning
confidence: 99%
“…In contrast, the strongly disturbed sites were dominated by resistant species. The total number of taxonomic units (M23) has always been a commonly used indicator 43,44 , closely related to disturbance. The percentage of lter-feeder individuals (M59) signi cantly decreased with increasing disturbance, while the percentage of collector individuals (M60) signi cantly increased.…”
Section: Discussionmentioning
confidence: 99%