E4 DO [mg l-1 (%)]

Depth[m]   Jan-67     Jul      Jan-68    Mar-70    Jan-77
    0     7.6 (95) 8.9 (100)  7.3 (95)  7.9 (99) 8.0 (100)
    5     7.8 (98) 8.9 (100)  7.5 (96)     -         -
   10    8.0 (100)  8.7 (97)  6.8 (87)     -      7.5 (94)
   15    8.1 (102)  8.5 (95)  6.4 (82)  7.7 (97)     -
   20    8.1 (102)  8.4 (94)     -         -      7.4 (93)
   25        -      8.4 (94)     -         -         -
   30     6.9 (85)  8.4 (94)     -      7.0 (88)  6.9 (87)
   35     6.6 (82)  8.4 (94)     -         -      4.8 (60)
   38        -         -      5.4 (68)     -         -
   39        -         -         -         -      4.5 (57)

Source: Allanson, B. R. (1979) The physico-chemical limnology of Lake Sibaya. Lake Sibaya (ed. Allanson, B. R.), pp.42-74.