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SPEAR indicates pesticide effects in streams - Comparative use of species- and family-level biomonitoring data |
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| Authors: | MA Beketov K Foit CA Schriever E Capri C Wells |
| Institution: | a UFZ - Helmholtz Centre for Environmental Research, Department System Ecotoxicology, Permoserstrasse 15, D-04318 Leipzig, Germany b Università Cattolica del Sacro Cuore, Istituto di Chimica Agraria ed Ambientale, Piacenza, Italy c Pond Conservation, c/o Oxford Brookes University, Headington, UK d Environment Agency of England and Wales, Science Department, Bristol, UK |
| Abstract: | To detect effects of pesticides on non-target freshwater organisms the Species at risk (SPEARpesticides) bioindicator based on biological traits was previously developed and successfully validated over different biogeographical regions of Europe using species-level data on stream invertebrates. Since many freshwater biomonitoring programmes have family-level taxonomic resolution we tested the applicability of SPEARpesticides with family-level biomonitoring data to indicate pesticide effects in streams (i.e. insecticide toxicity of pesticides). The study showed that the explanatory power of the family-level SPEAR(fm)pesticides is not significantly lower than the species-level index. The results suggest that the family-level SPEAR(fm)pesticides is a sensitive, cost-effective, and potentially European-wide bioindicator of pesticide contamination in flowing waters. Class boundaries for SPEARpesticides according to EU Water Framework Directive are defined to contribute to the assessment of ecological status of water bodies. |
| Keywords: | Bioassessment Large-scale Macroinvertebrates Pesticides Streams SPEAR Traits |
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