All official European Union website addresses are in the europa.eu domain.
See all EU institutions and bodiesDo something for our planet, print this page only if needed. Even a small action can make an enormous difference when millions of people do it!
Indicator Fact Sheet
Assessment made on 01 May 2004
Cyanobacteria are dominant in the phytoplankton community in many lakes, most conspicuously in Denmark where, until recently, many lakes have been polluted with phosphorus from sewage and industrial discharges. Norwegian lakes are less impacted by pollution, and the concentration of phytoplankton, in particular cyanobacteria, is lower. The French Lac Leman and Greek Lake Trihonida are dominated by taxa of phytoplankton other than cyanobacteria, contrary to the French reservoir Cheze / Jean Descottes with complete dominance by cyanobacteria during July and August. These 3 lakes cannot be considered representative for regions or countries.
For references, please go to https://www.eea.europa.eu/data-and-maps/indicators/biological-quality-of-lakes or scan the QR code.
PDF generated on 28 Mar 2024, 02:19 PM
Engineered by: EEA Web Team
Software updated on 26 September 2023 08:13 from version 23.8.18
Software version: EEA Plone KGS 23.9.14
Document Actions
Share with others