Research Article
Studies on the Survival and Growth of Fry of Catla catla (Hamilton, 1922) Using Live Feed
Table 5
Correlation coefficient between different water quality parameters in the Catla fry rearing tanks.
| | Dissolved oxygen | Calcium | Magnesium | Total hardness | Alkalinity | Ammonia | Nitrite | Nitrate | Phosphate | Sulphate | Chloride |
| Dissolved oxygen | 1.000 | 0.314** | −0.412** | −0.183 | −0.242* | 0.070 | −0.013 | 0.094 | −0.166 | −0.022 | 0.243* | Calcium | — | 1.000 | −0.274* | 0.432** | 0.336** | 0.379** | 0.117 | 0.196 | 0.502** | 0.528** | 0.539** | Magnesium | — | — | 1.000 | −0.065 | −0.004 | −0.273* | −0.100 | 0.329** | −0.071 | −0.197 | −0.491** | Total hardness | — | — | — | 1.000 | 0.671** | 0.597** | 0.193 | 0.068 | 0.698** | 0.584** | 0.456** | Alkalinity | — | — | — | — | 1.000 | 0.642** | 0.577** | −0.055 | 0.514** | 0.598** | 0.471** | Ammonia | — | — | — | — | — | 1.000 | 0.440** | −0.045 | 0.576** | 0.662** | 0.605** | Nitrite | — | — | — | — | — | — | 1.000 | 0.055 | 0.095 | 0.371** | 0.181 | Nitrate | — | — | — | — | — | — | — | 1.000 | −0.023 | 0.169 | 0.217 | Phosphate | — | — | — | — | — | — | — | — | 1.000 | 0.683** | 0.704** | Sulphate | — | — | — | — | — | — | — | — | — | 1.000 | 0.673** | Chloride | — | — | — | — | — | — | — | — | — | — | 1.000 |
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Note. ** and * denote significant level at 99% and 95% confident level, respectively.
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