One-way ANOVA and Tukey's HSD test results comparing pretreatment baseline values for benthic invertebrate density, EPT density, Shannon diversity index, family richness, zooplankton density, and genera richness to posttreatment values at each of the 13 mountain lakes in the South Fork Flathead River drainage, Montana, that were treated with rotenone from 2007 to 2017. Significant P values are in bold.