By Martina P | 11:59 AM UTC, Mon December 12, 2011 Year 1969 Temperature (°C) 10.2 pH 8.0 Conductivity (μS/cm) 600 Species Chrysosphaerella brevispina Mallomonas akrokomos Mallomonas annulata Mallomonas multiunca Mallomonas oviformis Mallomonas papillosa Mallomonas striata Synura echinulata Synura petersenii References KRISTIANSEN (1975)