Pond type

Before May 30

After May 30

Ammonia-N

pH

D. Oxygen*

Ammonia-N

pH

D. Oxygen*

Lined

0.02 ± 0.01

8.48 ± 0.03

9.46 ± 0.39

0.22 ± 0.04^y

8.17 ± 0.05

7.95 ± 0.47^y

Earthen

0.01 ± 0.01

8.47 ± 0.03

9.92 ± 0.32

0.01 ± <0.01^z

8.27 ± 0.06

9.29 ± 0.25^z