2.5. Statistical analyses
Prior to the analyses, the data on percentages (i.e., survival andSGR) were arcsine transformed (only the untransformed values arepresented), and the statistical assumptions were evaluated whenrequired. For the water quality parameters, two-way analysis ofvariance (ANOVA) was employed to identify significant differencesamong treatments. One-way analyses of variance (ANOVA) wasused to identify significant differences of the values of the growthperformance and survival parameters among the treatments. TheANOVA was followed by a Tukey’s post hoc comparison test whensignificant differences were found. All statistical analyses wereexamined at P < 0.05.