Description: Das Projekt "Oekologische Qualitaet und Funktionsweise der Oekosysteme in flachen Seen bezueglich der Anforderungen der Europaeischen Rahmenrichtlinie Wasser" wird vom Umweltbundesamt gefördert und von Universität Konstanz, Limnologisches Institut durchgeführt. Objective: Problems to be solved: The many shallow lakes of Europe offer great amenity and conservation value. They are also complex systems compared with deep lakes because of the important role of higher plants in them and so pose particular problems for the implementation of the Water Framework Directive. This project will solve some of those problems. The Water Framework Directive (WFD) requires member states to distinguish ecological status of their waters compared with high quality sites. Guidelines are given in annexes to the Directive but the details of how to distinguish these statuses are not. This proposal concerns shallow lakes among the many potential lake ecotypes covered by the WFD. The WFD presently describes a large range of parameters to be sampled, both biological and chemical. The costs of carrying out such sampling may be very high and many of the measurements demand high taxonomic expertise. Scientific objectives and approach: Our objectives are: to test the robustness of the proposed sampling frequencies given for lakes in the WFD; to determine, using palaeoecological methods, the degree of change that has taken place in each lake and to relate this change (the Ecological Quality Ratio) to the present ecological status of the lakes so that high, good, moderate or worse status can be recognised; to discover what amalgamations of ecotypes may be possible using data from this project and large, already accumulated databases; to test developments of the WFD parameters which may prove more easily comparable among different ecoregions than the proposed, largely taxonomic measures; to decide, with user groups ('competent authorities' of the Directive),the best criteria for determination of ecological status of shallow lakes within the requirements of the WFD. We will initially sample over sixty shallow lakes representative of Europe and measure the ecological quality of these lakes with criteria specified in the Water Framework Directive (WFD) in their most direct forms. The details of what is measured among the biological variables will be refined and tested for reproducibility, relevance and comparability among ecoregions and the data, together with already accumulated databases will be used provisionally to define ecological status for shallow lakes. Meanwhile we will develop a simple technique usable cheaply by competent authorities for determining degree of change in a given lake from a high status baseline, using short cores and parsimonious measurements of chemical and diatom indicators in contemporary, compared with deep sediments. These techniques and conclusions will be then retested on a second set of lakes. Expected impacts: We will develop a usable system and simplified classification of shallow lakes that can be practically implemented through the WFD by competent authorities. Prime Contractor: University of Liverpool, School of Biological Sciences; Liverpool.
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Konstanz ? Biopharmazeutikum ? Paläoökologie ? Seen ? Diatomeen ? Raffination ? Seensediment ? Ökoregion ? Ökologischer Zustand ? Wasserrahmenrichtlinie ? Europäische Union ? Ökologische Bewertung ? Flachwasser ? Gewässerqualität ? Gütekriterien ? Messdaten ? Aquatisches Ökosystem ? Politik ? Bestimmungsmethode ? Bewertungskriterium ? Standortwahl ? Sediment ? Schule ? Bioindikator ? Chemische Stoffeigenschaft ? Bohrkern ? Chemikalien ? Europa ? Daten ? Soziale Aspekte ? Gutachten ? Klassifikation ? Wirtschaftliche Aspekte ? Probenahme ? Fundort ? Umweltschutz ? Datenbank ? legislation, regulations ? See [Binnengewässer] ? renewable sources of energy ? scientific research ? other energy topics ?
Region: Baden-Württemberg
Bounding boxes: 9° .. 9° x 48.5° .. 48.5°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2000-02-26 - 2002-02-25
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