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Comparison of mean (95% confidence interval) PC scores associated with Channel Darter habitat use (), Round Goby habitat use () and available habitat () at Glen Ross, Trent River. The amount of variation explained by PC1, PC2 and PC3 was 34.4, 21.9 and 18.7%. Dominant PC 1 loadings: bedrock (−0.62), gravel (0.50) and cobble (0.54); dominant PC2 loading: boulder (0.84); and dominant PC3 loadings: water depth (−0.59) and water velocity (0.70).
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