Samenvatting

The shallow peat lake system the Reeuwijkse Plassen are part of the Water Framework Directive. The Regional Water Authority has been attempting to improve the water quality and ecological status of the lakes over the last two decades. After a series of measures the lakes however still score quite poorly. Especially the clarity of the water and the abundance of submerged vegetation in the lakes are in a very poor state. Recreational boating which is quite prevalent on the lakes was not included however in the status reports of the lakes, leading to the question if recreational boating might be an overlooked contributing factor to the poor quality of the lakes.