Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity

Freshwaters face multiple environmental problems including eutrophication, acidification, salinization, and climate-change, all of which can lead to impairment of ecosystem structure and function. Furthermore, these stressors often act in combination. Benthic algal-based assessments to quantify impa...

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Autores principales:	Donald F. Charles, Martyn G. Kelly, R. Jan Stevenson, Sandra Poikane, Susanna Theroux, Aleksandra Zgrundo, Marco Cantonati
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Benthic algae Assessments Monitoring Water Framework Directive (WFD) Clean Water Act (CWA) Biological Condition Gradient (BCG) Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d5479aabe272420b9190edcd3151b0e0
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spelling	oai:doaj.org-article:d5479aabe272420b9190edcd3151b0e02021-12-01T04:34:31ZBenthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity1470-160X10.1016/j.ecolind.2020.107082https://doaj.org/article/d5479aabe272420b9190edcd3151b0e02021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310219https://doaj.org/toc/1470-160XFreshwaters face multiple environmental problems including eutrophication, acidification, salinization, and climate-change, all of which can lead to impairment of ecosystem structure and function. Furthermore, these stressors often act in combination. Benthic algal-based assessments to quantify impairment are used in both the EU and US. In this review, we use case studies, experience, and the literature to compare concepts, approaches, and methods between the EU and US to offer an updated picture of benthic algal-based assessments. Both the US and EU are composed of numerous constituent states having considerable flexibility to adopt individual methods. The goal of this work is to synthesize the various approaches that are used across the EU and US. Specifically, we compare and contrast benthic algal assessment performed in response to core legislation – the Water Framework Directive in the EU and the Clean Water Act in the US, with a particular focus on the steps taken to ensure consistency at different stages of the process. This includes consideration of approaches to sampling design and field methods, taxonomic resolution and laboratory harmonization, metric selection and choice of algal groups, assessment of stressors and stressor/response relationships. A number of commonalities emerged during this process, particularly the focus on diatoms over other algal groups. However, there are also a number of key differences, including more widespread use of multimetric indices in the US compared with the EU. Finally, we consider emerging opportunities, including the potential for using metagenomic approaches for bioassessment in the future.Donald F. CharlesMartyn G. KellyR. Jan StevensonSandra PoikaneSusanna TherouxAleksandra ZgrundoMarco CantonatiElsevierarticleBenthic algaeAssessmentsMonitoringWater Framework Directive (WFD)Clean Water Act (CWA)Biological Condition Gradient (BCG)EcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107082- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Benthic algae Assessments Monitoring Water Framework Directive (WFD) Clean Water Act (CWA) Biological Condition Gradient (BCG) Ecology QH540-549.5
spellingShingle	Benthic algae Assessments Monitoring Water Framework Directive (WFD) Clean Water Act (CWA) Biological Condition Gradient (BCG) Ecology QH540-549.5 Donald F. Charles Martyn G. Kelly R. Jan Stevenson Sandra Poikane Susanna Theroux Aleksandra Zgrundo Marco Cantonati Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
description	Freshwaters face multiple environmental problems including eutrophication, acidification, salinization, and climate-change, all of which can lead to impairment of ecosystem structure and function. Furthermore, these stressors often act in combination. Benthic algal-based assessments to quantify impairment are used in both the EU and US. In this review, we use case studies, experience, and the literature to compare concepts, approaches, and methods between the EU and US to offer an updated picture of benthic algal-based assessments. Both the US and EU are composed of numerous constituent states having considerable flexibility to adopt individual methods. The goal of this work is to synthesize the various approaches that are used across the EU and US. Specifically, we compare and contrast benthic algal assessment performed in response to core legislation – the Water Framework Directive in the EU and the Clean Water Act in the US, with a particular focus on the steps taken to ensure consistency at different stages of the process. This includes consideration of approaches to sampling design and field methods, taxonomic resolution and laboratory harmonization, metric selection and choice of algal groups, assessment of stressors and stressor/response relationships. A number of commonalities emerged during this process, particularly the focus on diatoms over other algal groups. However, there are also a number of key differences, including more widespread use of multimetric indices in the US compared with the EU. Finally, we consider emerging opportunities, including the potential for using metagenomic approaches for bioassessment in the future.
format	article
author	Donald F. Charles Martyn G. Kelly R. Jan Stevenson Sandra Poikane Susanna Theroux Aleksandra Zgrundo Marco Cantonati
author_facet	Donald F. Charles Martyn G. Kelly R. Jan Stevenson Sandra Poikane Susanna Theroux Aleksandra Zgrundo Marco Cantonati
author_sort	Donald F. Charles
title	Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
title_short	Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
title_full	Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
title_fullStr	Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
title_full_unstemmed	Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity
title_sort	benthic algae assessments in the eu and the us: striving for consistency in the face of great ecological diversity
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/d5479aabe272420b9190edcd3151b0e0
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Benthic algae assessments in the EU and the US: Striving for consistency in the face of great ecological diversity

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