As
for total nitrogen, pond A had the highest
total nitrogen by 0.58%. In ponds B and C,
total nitrogen was 0.45% and 0.39%,
respectively. Chlorophyll a concentrations
were the highest in pond A (18.13 μgL-1)
and lower in ponds B (8.25 μgL-1) and C
(7.70 μgL-1). The results of water quality
especially plant nutrients reflected
concentrations of chlorophyll a among the 3
ponds. This is because higher densities of
phytoplankton in pond A compared with
other ponds may be strongly linked to high
concentrations of plant nutrients, especially
soluble reactive phosphorus that can be
readily up taken by phytoplankton.