The Impact of Biofloc Technology on Water Quality in Aquaculture: A Systematic Meta-Analysis

Figure 6

Forest plot reporting the effect size (standardized mean differences) for NO₂–N in different studies of BFT having multiple experimental levels. Mean and 95% confidence interval (CI) effect sizes are reported. The estimated summary effect size is indicated at the bottom of the figure (cyan diamond shape). When a study includes multiple treatment levels, it is presented with a “numeric number” after the publication year.