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Table 1

Kruskal-Wallis test of differences in pike abundance between station types (FLOLIZ and control stations) over different periods. NS = No significant difference; * means a significant difference at 5% threshold; χ2 = Kruskal-Wallis Chi Squared; df = Degree of freedom; P = P-value (Kruskal and Wallis, 1952).

DCS vs FLOLIZ NCS vs FLOLIZ DCS vs NCS
Whole sampling period        
  Season χ2 = 3.9, df = 1, P = 0.049 * NS NS
  Spring χ2 = 4.3, df = 1, P = 0.037 * NS NS
  Summer NS NS NS
Year        
  2019 NS NS NS
2020 NS NS NS
2021 NS NS NS
2022 χ2 = 3.7, df = 1, P = 0.055 χ2 = 3.7, df = 1, P = 0.055 NS
2023 No data NS No data

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