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Fig. 13 | Environmental Evidence

Fig. 13

From: How do changes in flow magnitude due to hydropower operations affect fish abundance and biomass in temperate regions? A systematic review

Fig. 13

Average effect size by fish family for Control/Impact studies and abundance. Value in parentheses (k) is the number of effect sizes. Error bars indicate 95% confidence intervals. A positive mean value (above the dashed zero line) indicates that the abundance was higher in intervention than in comparator sites (no intervention). 95% confidence intervals that do not overlap with the dashed line indicate a significant effect (at the p < 0.05 level)

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Environmental Evidence

ISSN: 2047-2382