Macroinvertebrate sensitivity thresholds for sediment in Virginia streams

Integrated Environmental Assessment and Management
Heather GovenorW Cully Hession

Abstract

Sediment is the most commonly identified pollutant associated with macroinvertebrate community impairments in freshwater streams nationwide. Management of this physical stressor is complicated by the multiple measures of sediment available (e.g., suspended, dissolved, bedded) and the variability in natural "healthy" sediment loadings across ecoregions. Here we examine the relative importance of 9 sediment parameters on macroinvertebrate community health as measured by the Virginia Stream Condition Index (VSCI) across 5 ecoregions. In combination, sediment parameters explained 27.4% of variance in the VSCI in a multiregion data set and from 20.2% to 76.4% of variance for individual ecoregions. Bedded sediment parameters had a stronger influence on VSCI than did dissolved or suspended parameters in the multiregion assessment. However, assessments of individual ecoregions revealed conductivity had a key influence on VSCI in the Central Appalachian, Northern Piedmont and Piedmont ecoregions. In no case was a single sediment parameter sufficient to predict VSCI scores or individual biological metrics. Given the identification of embeddedness and conductivity as key parameters for predicting biological condition, we developed family-...Continue Reading

References

Mar 23, 1970·JAMA : the Journal of the American Medical Association·H Friederici
Mar 1, 1997·Environmental Management·P J WOOD, P D ARMITAGE
Nov 15, 2000·Quarterly Reviews of Biophysics·A E Ferentz, G Wagner
Oct 30, 2003·The European Respiratory Journal·J Gerritsen
Jul 8, 2005·Archives of Environmental Contamination and Toxicology·A J KennedyC E Zipper
Jul 18, 2008·Integrated Environmental Assessment and Management·Susan M CormierGlenn W Suter
Jan 6, 2012·Journal of Environmental Quality·Glenn A BenoyRobert B Brua
Nov 20, 2012·Environmental Toxicology and Chemistry·Susan M CormierLei Zheng
Aug 24, 2013·Ecological Applications : a Publication of the Ecological Society of America·Francis J BurdonJon S Harding
Sep 17, 2014·Environmental Management·James M Omernik, Glenn E Griffith
Mar 18, 2017·Integrated Environmental Assessment and Management·G Allen Burton
Oct 17, 2017·Integrated Environmental Assessment and Management·Susan M CormierAndrew Hamilton
Feb 6, 2018·The Science of the Total Environment·Susan M CormierColleen M Flaherty

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Citations

Aug 11, 2020·Ecotoxicology and Environmental Safety·Susan M CormierLei Zheng
Jul 30, 2021·The Science of the Total Environment·Richard H WalkerKelly O Maloney

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