Appendix 1—figure 1. Interactions measured with OD₆₀₀ are consistent with those based on fluorescent measurements.

The effects of six single species on each focal were measured using OD₆₀₀ and fluorescence in a 96 split well plate (see ‘Materials and methods’). (A) The correlation between the effect when measured by fluorescence and OD₆₀₀ (p=1e-6). (B) The correlation between the effect when measured in the kChip and the HTD Equilibrium Dialysis System (p=0.001). Each point represents the median effect of three techinacal repliactes, and error bars represent the standard error calculated viabootstraping (see ‘Materials and methods’).