Response of fish communities to multiple pressures: development of a total anthropogenic pressure intensity index

Autor: Poikane, S., Ritterbusch, D., Argillier, C., Bialokoz, W., Blabolil, P., Breine, J., Jaarsma, N.G., Krause, T., Kubecka, J., Lauridsen, T.L., Nõges, P., Peirson, G., Virbickas, T.
Přispěvatelé: European Commission - Joint Research Centre [Ispra] (JRC), Institute of Inland Fisheries Potsdam-Sacrow, Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience (RECOVER), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), aucun, Inland Fisheries Institute, Institute of Hydrobiology, Biology Centre of the Czech Academy of Science, Research Institute for Nature and Forest (INBO), Nico Jaarsma, EDF (EDF), Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences (EMU), Na Sádkách 7, 370 05 Č eské Bud ě jovice, Aarhus University [Aarhus], Environment Agency, Nature Research Centre, Institute of Inland Fisheries, Research Institute for Nature and Forest, Estonian University of Life Science
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Science of the Total Environment
Science of the Total Environment, Elsevier, 2017, 586, pp.502-511
ISSN: 0048-9697
1879-1026
Popis: International audience; Lakes in Europe are subject to multiple anthropogenic pressures, such as eutrophication, habitat degradation and alien species which are frequently inter-related. Therefore, effective assessment methods addressing multiple pressures are needed. In addition, these systems have to be harmonised (i.e. intercalibrated) to achieve common management objectives across Europe. Assessments of fish communities inform environmental policies on ecological conditions integrating the impacts of multiple pressures. However, the challenge is to ensure consistency in ecological assessments through time, across ecosystem types and across jurisdictional boundaries. To overcome the serious comparability issues between national assessment systems in Europe, a total anthropogenic pressure intensity (TAPI) index was developed as a weighed combination of most common pressures in European lakes that is validated against 10 national fish based water quality assessment systems using data from 556 lakes. Multi-pressure indices showed significantly higher correlations with fish indices than single-pressure indices. The best-performing index combines eutrophication, hydromorphological alterations and human use intensity of lakes. For specific lake types also biological pressures may constitute an important additional pressure. The best-performing index showed a strong correlation with eight fish-based national assessment systems. The developed best performing index can be used in lake management for assessing total anthropogenic pressure on lake ecosystems and creates a benchmark for comparison of fish assessments independent of fish community composition, size structure and fishing-gear. We argue that fish-based multiple-pressure assessment tools should be seen as complementary to single-pressure tools offering the major advantage of integrating direct and indirect effects of multiple pressures over large scales of space and time.
Databáze: OpenAIRE
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