What is the influence of a reduction of planktivorous and benthivorous fish on water quality in temperate eutrophic lakes? A systematic review

Table 4 Summary effect sizes based on the selected dataset (mean differences to before manipulation)

	Mean	95% C.I.
Secchi depth during manipulation (m)	0.22	0.11 – 0.33
Secchi depth 1–3 years after manipulation (m)	0.47	0.23 – 0.70
Chlorophyll a during manipulation (μg/l)	−30	−42 – −17
Chlorophyll a 1–3 years after manipulation (μg/l)	−33	−52 – −14

ISSN: 2047-2382