2024-03-28T21:26:27Zhttp://buleria.unileon.es/oai/requestoai:buleria.unileon.es:10612/71072020-12-10T08:56:09Zcom_10612_17col_10612_18
Epiphytic diatoms as water quality indicators in Spanish shallow lakes
Blanco Lanza, Saúl
Ector, Luc
Bécares Mantecón, Eloy
Ecologia
Biología
Ecología. Medio ambiente
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
2018-01-18T13:19:52Z
2018-01-18T13:19:52Z
2018-01-18T13:19:52Z
2018-01-18
info:eu-repo/semantics/article
Vie et milieu, 2004, vol. 54, n. 2-3
http://hdl.handle.net/10612/7107
info:eu-repo/semantics/openAccess
Universite de París VI