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. 2014 Jan 8;9(1):e84568. doi: 10.1371/journal.pone.0084568

Figure 5. Mean and standard error of unstandardized residuals of response variables by treatment and over time.

Figure 5

Residuals are from simple linear regression of the response variable and fish biomass, and therefore are measures of the response variable among treatments that control for the potentially confounding effect of fish biomass.