| dc.description.abstract | The aim of this study was the assessment of some water quality parameters of three different
fish farms including Sukhsagor, Buradighi and High-hatchery in Dinajpur. The study was
conducted from January to June 2018. Water samplings were done monthly with three
replications from each farm. The selected parameters were temperature, transparency,
dissolved oxygen, pH and plankton abundance. Among 3 sampling farms the air temperature
was ranged from 18.11 to 33.18
0
C. During the study period it was found that, the mean air
temperature (Mean ± SD) was 25.07 ± 5.33
0
C at farm 2 which was higher than that of other
two farms. Water temperature was ranged from 20.08 to 33.86
0
C with the mean temperature
of water (Mean ± SD) at farm 1 that was higher (26.16 ± 5.85
0
C) than other two farms. The
p
H
value was ranged from 7.02 to 8.67 with the mean value of pH
(Mean ± SD) at farm 2 that
was higher (7.77 ± 0.16) than that of other two farms. Dissolved oxygen values ranged from
6.01 to 9.23 mg/L. Here at farm 3 the mean dissolved oxygen was higher (8.29 ± 1.28 mg/L)
than that of other two farms. Transparency values ranged from 17.55 to 28.52 cm. The mean
of transparency at farm 3 was higher (23.58 ± 2.04 cm) than that of other two farms.
Euglenophyceae ranged from 0.33 to 1 cells/L was higher (1.22±0.40 cells/L) than that of
other two farms. Cyanophyceae ranged from 1.67 to 4 cells/L. It was found that, the mean of
Cyanophyceae (Mean ± SD) at farm 2 was higher (3.06±0.65 cells/L) than that of other two
farms. Bacillariophyceae ranged from 1.00 to 4.33 cells/L. It was found that, the mean of
Bacillariophyceae (Mean ± SD) at farm 2 was higher (3.39±0.65 cells/L) than that of other
two farms. Chlorophyceae ranged from 2.33 to 7.00 cells/L. It was found that, the mean of
Chlorophyceae (Mean ± SD) at farm 2 was higher (5.22±1.34) than that of other two farms.
Rotifera ranged from 1.00 to 2.67 cells/L. It was found that, the mean of Rotifera (Mean ±
SD) at farm 2 was higher (2.33±0.30 cells/L) than that of other two farms. Cladocera ranged
from 0.33 to 1.67 cells/L. It was found that, the mean of Cladocera (Mean ± SD) at farm 2
was higher (1.22±0.35 cells/L) than that of other two farms. Crustacean ranged from 0.33 to
1.67 cells/L. It was found that, the mean of Crustacean (Mean ± SD) at farm 2 was higher
(1.28±0.25 cells/L) than that of other two farms. Copepoda ranged from 0.67 to 2.33 cells/L.
It was found that, the mean of Copepoda (Mean ± SD) at farm 2 was higher (1.89±0.40
cells/L) than that of other two farms. From the present study it was found that the water
quality parameters in these areas were in optimum range. | en_US |
