By Magda | 7:45 PM UTC, Sat March 12, 2011 Locality Molenwiel Country Netherlands Year 1979 Temperature (°C) 18.3 pH 8.1 Conductivity (μS/cm) 229 Species Mallomonas alpina Mallomonas annulata Mallomonas tonsurata Paraphysomonas vestita Synura curtispina Synura uvella Mallomonas acaroides References ROIJACKERS & KESSELS (1981) Coordinates 51.770605, 5.754626