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Title: Integrating chemical and biological status assessment: assembling lines of evidence for the evaluation of river ecosystem risk
Author: Muñoz Gràcia, Isabel
Sabater, Sergi
Keywords: Bioassaigs
Teoria de la mesura
Indicadors (Química)
Ecologia d'aigua dolça
Biological assay
Measure theory
Indicators and test-papers
Freshwater ecology
Issue Date: 2014
Publisher: Universidad Nacional de Colombia
Abstract: This paper describes various approaches to evaluating ecological risk in rivers affected by multiple chemical stressors, with emphasis on biofilm and invertebrate community responses. Metrics should be considered as different lines of evidence that, when weighted, form an advanced weight of evidence approach to establishing the environmental risk on a basin scale. Combination of field surveys to obtain observational data of communities, in situ experiments, toxicological sediment tests and a good chemical description of the medium (water and sediment) helps give an integrative view of the chemical and biological state of a river ecosystem. The greater and more distinct the variables used, the greater is our ability to identify the effects of major stressors impairing communities. Weight of evidence is an integrative methodology for tackling the challenge of determining causal relations and applying this knowledge in the decision-making processes of river management.
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It is part of: Acta Biológica Colombiana, 2014, vol. 19, num. 1, p. 25-34
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ISSN: 0120-548X
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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