Salinity varied little from estuary to supply canal to
pond during the dry season, whereas during the rainy season salinity
increased linearly. Observed BOD
in ponds averaged 8.6 and
7.7 mg L
−1
5
during the dry and rainy seasons, respectively, while the
corresponding BOD
30–31
means were 20.1 and 27.2 mg L
, respectively.