Epiphytic diatoms as water quality indicators in Spanish shallow lakes

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Epiphytic diatoms as water quality indicators in Spanish shallow lakes

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Title: Epiphytic diatoms as water quality indicators in Spanish shallow lakes
Author: Blanco Lanza, Saúl;Ector, Luc;Bécares Mantecón, Eloy
xmlui.dri2xhtml.METS-1.0.item-contributor: Instituto de Medio Ambiente, Recursos Naturales y Biodiversidad de la Universidad de Léon
xmlui.dri2xhtml.METS-1.0.item-area: Ecologia
Abstract: The Water Framework Directive (WFD) requires that the European Union countries determine the biological state of their waters with respect to sites of high quality. Despite bioindicators have been widely applied in running waters and deep lakes throughout all Europe, little is known about their applicability in shallow lakes. In this context, the objective of this work is to check the effective-ness of epiphytic diatoms as indicators of the trophic state in six shallow lakes of León Province (NW Spain). Epiphyton was sampled from helophyte stems in six shallow lakes covering different ecological conditions. A significant correlation was found between the total nitrogen concentration and the diatom indices SPI (Specific Polluosensitivity Index) and BDI (Biological Diatom Index), this correla-tion being lower with respect to the total phosphorus concentration. The classifica-tion of the lakes according to the trophic and saprobic levels based on diatoms corresponds to that obtained from the analysis of the limnological and chemical pa-rameters of the studied systems. Despite the use of these indices has been traditio-nally limited to rivers and channels, our results show the effectiveness of epiphytic diatoms as biological indicators of the quality of water in Mediterranean shallow la-kes and the applicability of common diatom indices for biomonitoring purposes in these aquatic ecosystems
xmlui.dri2xhtml.METS-1.0.item-desfisica: P. 71-79
xmlui.dri2xhtml.METS-1.0.item-peerreviewed: SI
Publisher: Universite de París VI
xmlui.dri2xhtml.METS-1.0.item-citation: Vie et milieu, 2004, vol. 54, n. 2-3
URI: http://hdl.handle.net/10612/7107
Date: 2004
xmlui.dri2xhtml.METS-1.0.item-tipo: info:eu-repo/semantics/article
Subject: Biología
Ecología. Medio ambiente
xmlui.dri2xhtml.METS-1.0.item-palclave: Diatomeas
Vigilancia ambiental
xmlui.dri2xhtml.METS-1.0.item-accessRights: info:eu-repo/semantics/openAccess
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