Regressions factors

No. of fish size categories

Slope (b)

Determination coefficient

Correlation coefficient

Intercept

Sand particles

4

0.241

0.96

0.99

1.787

Synechocystis (Chroococcaceae)

4

0.041

0.97

0.99

0.337

Microcystis (Chroococcaceae)

4

0.164

0.88

0.94

2.337

Closterium (Desmidiaceae)

4

0.033

0.62

0.79

3.604