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Abstract
Nutrient-poor, low-productive (oligotrophic) soft-water lakes in the Atlantic areas of West and North-West Europe – the so-called Lobelia lakes – are of high conservation value as their low nutrient status favours a particular submerged macrophyte flora with isoetids, which are becoming increasingly rare or threatened due to nutrient enrichment (eutrophication) associated with landuse changes and urbanisation. European Union member states have a duty of care, under the Habitats Directive, to protect the biodiversity of oligotrophic to mesotrophic (moderately productive) standing waters.
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Copyright (c) 2010 Kaarina Weckström, Peter Rasmussen, Bent Vad Odgaard, Thorbjørn Joest Andersen, Tarmo Virtanen, Jesper Olsen

This work is licensed under a Creative Commons Attribution 4.0 International License.
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Edited by Ole Bennike, Adam A. Garde and W. Stuart Watt
This Review of Survey activities presents a selection of 23 papers reflecting the wide spectrum of activities of the Geological Survey of Denmark and Greenland, from the microscopic to the plate-tectonic level. In addition, an obituary about the former director of the [...]