ÍNDICES DE FITOPLANCTON

Última actualización: 09/09/2017  10:11:11


• 2013/ Geoff Phillips, Anne Lyche-Solheim, Birger Skjelbred, Ute Mischke, Stina Drakare, Gary Free, Marko Järvinen, Caridad de Hoyos, Giuseppe Morabito, Sandra Poikane, Laurence Carvalho
A phytoplankton trophic index to assess the status of lakes for the Water Framework Directive

Resumen

Despite improvements in wastewater treatment systems, the impact of anthropogenic nutrient sources remains a key issue for the management of European lakes. The Water Framework Directive (WFD) provides a mechanism through which progress can be made on this issue. The Directive requires a classification of the ecological status of phytoplankton, which includes an assessment of taxonomic composition. In this paper, we present a composition metric, the plankton trophic index, that was developed in the WISER EU FP7 project and demonstrate how it has been used to compare national phytoplankton classification systems in Northern and Central Europe. The metric was derived from summer phytoplankton data summarised by genus from 1,795 lakes, covering 20 European countries. We show that it is significantly related to total phosphorus concentrations, but that it is also sensitive to alkalinity, lake size and climatic variables. Through the use of country-specific reference values for the index, we demonstrate that it is significantly related to other national phytoplankton assessment systems and illustrate for a single European (intercalibration) lake type how it was used to intercalibrate WFD boundaries from different countries.

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CALIBRACIÓN ESTADO ECOLÓGICO

Los trabajos de este apartado están ordenados en estos contenidos temáticos:

A/ Estado ecológico en lagos

B/ Intercalibración

Última actualización: 09/09/2017  01:11:11  


 A/ ESTADO ECOLÓGICO EN LAGOS

• 2013/ Anne Lyche-Solheim, Christian K. Feld, Sebastian Birk, Geoff Phillips, Laurence Carvalho, Giuseppe Morabito, Ute Mischke, Nigel Willby, Martin Søndergaard, Seppo Hellsten, Agnieszka Kolada, Marit Mjelde, Jürgen Böhmer, Oliver Miler, Martin T. Pusch, Christine Argillier, Erik Jeppesen, Torben L. Lauridsen y Sandra Poikane
Ecological status assessment of European lakes: a comparison of metrics for phytoplankton, macrophytes, benthic invertebrates and fish 

Resumen

Data on phytoplankton, macrophytes, benthic invertebrates and fish from more than 2000 lakes in 22 European countries were used to develop and test metrics for assessing the ecological status of European lakes as required by the Water Framework Directive. The strongest and most sensitive of the 11 metrics responding to eutrophication pressure were phytoplankton chlorophyll a, a taxonomic composition trophic index and a functional traits index, the macrophyte intercalibration taxonomic composition metric and a Nordic lake fish index. Intermediate response was found for a cyanobacterial bloom intensity index (Cyano), the Ellenberg macrophyte index and a multimetric index for benthic invertebrates. The latter also responded to hydromorphological pressure. The metrics provide information on primary and secondary impacts of eutrophication in the pelagic and the littoral zone of lakes. Several of these metrics were used as common metrics in the intercalibration of national assessment systems or have been incorporated directly into the national systems. New biological metrics have been developed to assess hydromorphological pressures, based on aquatic macrophyte responses to water level fluctuations, and on macroinvertebrate responses to morphological modifications of lake shorelines. These metrics thus enable the quantification of biological impacts of hydromorphological pressures in lakes.

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 B/ INTERCALIBRACIÓN

 • Documentos de la serie “Water Framework Directive Intercalibration Technical Report” personalizados para los elementos de calidad y para las distintas regiones ecológicas de Europa.
El texto completo de todos estos trabajos se pueden consultar (en inglés) a través de EU Science Hub en esta dirección Clic¡ de la Comisión Europea.

El correspondiente al fitoplancton en lagos mediterráneos:

• 2014 / Caridad de Hoyos, Jordi Catalan, Gerald Dörflinger, João Ferreira, Dimitra Kemitzoglou, Christophe Laplace-Treyture, José Pahissa López, Aldo Marchetto, Otilia Mihail, Giuseppe Morabito, Polina Polykarpou, Filipe Romão y Vasiliki Tsiaoussi.
JRC Technical Reports. Mediterranean Lake Phytoplankton ecological assessment methods. Ed. Sandra Poikane

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 • Documentos de la serie “COMMON IMPLEMENTATION STRATEGY FOR THE WATER FRAMEWORK DIRECTIVE (2000/60/EC)”.
• 2003  Guidance Document No 10.  Rivers and Lakes – Typology, Reference Conditions and Classification Systems.Produced by Working Group 2.3 – REFCOND

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• 2015/ Sandra Poikane, SebastianBirk, JürgenBöhmer, LaurenceCarvalho, Caridad deHoyos, HubertGassner, MartynKellyh, Anne LycheSolheim, MikkoOlin, KarinPall, GeoffPhillips, RobPortielje, David Ritterbusch, LeonardSandin, Ann-KristinSchartau, AngeloG.Solimini, Marcel vandenBerg, GeorgWolfram y WoutervandeBund
A hitchhiker’s guide to European lake ecological assessment and intercalibration

Resumen

The Water Framework Directive is the first international legislation to require European countries to establish comparable ecological assessment schemes for their freshwaters. A key element in harmonising quality classification within and between Europe’s river basins is an “Intercalibration” exercise, stipulated by the WFD, to ensure that the good status boundaries in all of the biological assessment methods correspond to similar levels of anthropogenic pressure. In this article, we provide a comprehensive overview of this international comparison, focusing on the assessment schemes developed for freshwater lakes. Out of 82 lake ecological assessment methods reported for the comparison, 62 were successfully intercalibrated and included in the EC Decision on intercalibration, with a high proportion of phytoplankton (18), macrophyte (17) and benthic fauna (13) assessment methods. All the lake assessment methods are reviewed in this article, including the results of intercalibration. Furthermore, the current gaps and way forward to reach consistent management objectives for European lakes are discussed.

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