Water quality parameters in the ponds were within the required
ranges for the growth of O. shiranus during the experiment.
Mean temperature ranged from 24.54 ± 1.5 C to
29.66 ± 1.6 C, dissolved oxygen (DO) from 4.12 ± 0.17 to
9.44 ± 0.17 mg/l, pH from 6.76 ± 0.5 to 8.01 ± 0.3 while
ammonia ranged from 0.163 ± 0.02 to 0.204 ± 0.01 mg/l
(Table 2). There were no differences in temperature
(p = 0.998), dissolved oxygen (p = 0.068), pH (p = 0.072)
and ammonia levels (p = 0.057) across the different stocking
densities and fish treatments in all the hapas. Their fluctuations