Integration of community structure data reveals observable effects below sediment guideline thresholds in a large estuary

Louis A. Tremblay, Dana Clark, Jim Sinner, Joanne Ellis

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The sustainable management of estuarine and coastal ecosystems requires robust frameworks due to the presence of multiple physical and chemical stressors. In this study, we assessed whether ecological health decline, based on community structure composition changes along a pollution gradient, occurred at levels below guideline threshold values for copper, zinc and lead. Canonical analysis of principal coordinates (CAP) was used to characterise benthic communities along a metal contamination gradient. The analysis revealed changes in benthic community distribution at levels below the individual guideline values for the three metals. These results suggest that field-based measures of ecological health analysed with multivariate tools can provide additional information to single metal guideline threshold values to monitor large systems exposed to multiple stressors.
Original languageEnglish (US)
Pages (from-to)1134-1141
Number of pages8
JournalEnviron. Sci.: Processes Impacts
Volume19
Issue number9
DOIs
StatePublished - 2017

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