[1] Wageningen Univ, Sub Dept Environm Technol, NL-6700 AA Wageningen, Netherlands
[2] Ctr Excellence Sustainable Water Technol, Wetsus, NL-8900 CC Leeuwarden, Netherlands
[3] Netherlands Inst Ecol NIOO KNAW, Dept Aquat Ecol, NL-6700 AB Wageningen, Netherlands