Log/log power regressions and Spearman’s rank coefficients between the bacterial PLFA (nmol gdw⁻¹) and respiratory quinone (RQ) concentrations (nmol gdw⁻¹), and between organic carbon (mg-C gdw⁻¹) and the bacterial PLFA and quinone concentration of individual sample

Levels of significance are *P<0.05, **P<0.01.