By Martina P | 3:09 PM UTC, Sun July 22, 2012 Year 1981 Temperature (°C) 19.0 pH 7.2 Conductivity (μS/cm) 340 Species Chrysosphaerella brevispina Mallomonas annulata Mallomonas costata Mallomonas crassisquama Mallomonas intermedia Mallomonas lelymene Mallomonas paxillata Mallomonas trummensis Spiniferomonas trioralis Synura curtispina Synura echinulata Synura petersenii Mallomonas teilingii Mallomonas striata var. serrata References DÜRRSCHMIDT (1984)