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Showing 1 to 9 of 9 for “"multimetric index"”.
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The effectiveness of using volunteers for biological monitoring of streams
… was made more quantitative by developing a multimetric index that is appropriate for use by volunteers. The SOS sampling protocol was modified slightly to obtain actual counts of the different kinds of macroinvertebrates, which allowed for calculation of metrics. Sorting effort and taxonomic …
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A Comparison of the Index of Biotic Integrity by Habitat Type in Swan Creek, Southwest Missouri
A multimetric Index of Biotic Integrity (IBI) based on fish communities was used to score Missouri streams as an assessment of stream health. During summer 2002 we sampled Swan Creek, a 5th order stream in Southwest Missouri, which flows into the White River system. We sampled 19 sites, collecting …
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Levels of Dissolved Solids Associated with Aquatic Life Effects in Headwater Streams of Virginia's Central Appalachian Coalfield Region
… structure was examined using a family-level multimetric index and genus-level taxa sensitivity distributions. Test sites were selected along a gradient of elevated TDS, with non-TDS factors of reference quality. Virginia Stream Condition Index (VASCI) scores were regressed against …
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Studies of Benthic Macroinvertebrates in Western Virginia Streams as Related to the Implementation of Rapid Bioassessment Techniques
… same assessment an average 89% of the time using multimetric index developed for the Mid-Atlantic Region. I found no pattern showing one method was more accurate in making assessments of biological condition than the other. Given the greater time and costs associated with quantitative sampling …
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Chironomidae Contributions to the Macroinvertebrate Assemblage, Index of Biotic Integrity and Relationships to Water Quality Impairment for Eastern South Dakota Streams
… no effort has been attempted to develop a multimetric index of biotic integrity (IBI) using Chironomidae larvae. The objectives of this research were to (1) assess the contribution of Chironomidae assemblage structure to the total macroinvertebrate assemblage, (2) develop an IBI and …
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Validation Of Kentucky Wetlands Rapid Assessment Method (ky-Wram) Metrics Using Macroinvertebrate Communities Of Forested Depressional Wetlands
… macroinvertebrate metrics to be used in a multimetric index for macroinvertebrate biotic integrity for Kentucky wetlands; (3) Assess the correlation of macroinvertebrate communities of forested depressional wetlands in the Upper Cumberland basin to KY-WRAM scores. Nineteen naturally …
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Effects of Watershed and Habitat Conditions on Stream Fishes in the Upper Roanoke River Watershed, Virginia
… I grouped fishes into metrics commonly used in indexes of biotic integrity and created a multimetric index called the mean metric score to represent fish communities at sites. Fish variables and metric values were compared with stream habitat and watershed variables to determine primary …
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Evaluation of a diatom-based index for acid mine drainage impacted permanent pans in the Mpumalanga Highveld region
… and terrestrial organisms. A water quality index based on diatoms was created in 2017 to determine the impacts of AMD on permanent pans in the region. Diatoms (Bacillariophyceae) are a ubiquitous group of algae with well-known ecological preferences and a history of successful use in …
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Studies of Benthic Macroinvertebrate Use for Biomonitoring of Mid-Atlantic Highland Streams
… disturbance. The Macroinvertebrate Aggregated Index for Streams (MAIS) was found to have an overall classification efficiency (CE) of 86% in the Ridge and Valley ecoregion, and an overall CE of 91% in the Central Appalachians ecoregion. Refinement of the MAIS for use in the Blue Ridge ecoregion …