E4 DO [mg l-1](1)

Ampem, 1974-1975
 Depth     Jan      Feb      Mar      Apr      May      Jun      Jul      Aug      Sep      Oct      Nov      Dec
Surface   5.55      6.5      6.9     6.75      6.7      6.3      5.5      6.2      5.8      6.2      6.6      4.8
   1      5.25     6.45      7.2     6.65      6.5      6.2      5.6      6.2      5.7      6.2      6.7      4.7
   5      5.25      6.0      7.2     6.45      6.3      5.9      5.3      5.7      4.7      6.2      6.1      4.7
   10     5.10      5.7      6.0      5.1      6.1      5.4      4.9      4.8      3.4      5.0      4.8      4.0
 Bottom   4.25     2.05      5.4     0.55      2.7      3.8      4.3      2.3      2.3      1.1      0.2      0.0