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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Classifying aquatic macrophytes as indicators of eutrophication in European lakes
Authors: Penning, W Ellis
Mjelde, Marit
Dudley, Bernard
Hellsten, Seppo
Hanganu, Jenica
Kolada, Agnieszka
van, den Berg Marcel
Poikane, Sandra
Phillips, Geoff
Willby, Nigel
Ecke, Frauke
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Keywords: Aquatic vegetation
Species classification
EU Water Framework Directive
Issue Date: Jun-2008
Publisher: Springer
Citation: Penning WE, Mjelde M, Dudley B, Hellsten S, Hanganu J, Kolada A, van den Berg M, Poikane S, Phillips G, Willby N & Ecke F (2008) Classifying aquatic macrophytes as indicators of eutrophication in European lakes, Aquatic Ecology, 42 (2), pp. 237-251.
Abstract: Aquatic macrophytes are one of the biological quality elements in the Water Framework Directive (WFD) for which status assessments must be defined. We tested two methods to classify macrophyte species and their response to eutrophication pressure: one based on percentiles of occurrence along a phosphorous gradient and another based on trophic ranking of species using Canonical Correspondence Analyses in the ranking procedure. The methods were tested at Europe-wide, regional and national scale as well as by alkalinity category, using 1,147 lakes from 12 European states. The grouping of species as sensitive, tolerant or indifferent to eutrophication was evaluated for some taxa, such as the sensitive Chara spp. and the large isoetids, by analysing the (non-linear) response curve along a phosphorous gradient. These thresholds revealed in these response curves can be used to set boundaries among different ecological status classes. In total 48 taxa out of 114 taxa were classified identically regardless of dataset or classification method. These taxa can be considered the most consistent and reliable indicators of sensitivity or tolerance to eutrophication at European scale. Although the general response of well known indicator species seems to hold, there are many species that were evaluated differently according to the database selection and classification methods. This hampers a Europe-wide comparison of classified species lists as used for the status assessment within the WFD implementation process.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Netherlands Institute of Ecology (NIOO)
Norsk institutt for vannforskning (NIVA)
Centre for Ecology & Hydrology (CEH)
University of Oulu
Danube Delta National Institute (DDNI)
Institute for Environmental Protection
RWS Centre For Water Management (RWS)
Joint Research Centre
Biological and Environmental Sciences
Biological and Environmental Sciences
Lulea University of Technology

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