highly significantp-value = 0.0003
Despite the fact that few within experiment comparisons resulted in significant effects of p CO 2 , patterns in carbon removal and bacterioplankton growth dynamics were consistent across all experiments and locations, and are highly significant: cell-specific TOC removal ( Fig 4 ) and bacterioplankton carbon demand ( Fig 5 ) were consistently enhanced at elevated p CO 2 (p-value = 0.0003, Fisher’s sign test; p-value < 0.0001, t-test, respectively), while bacterioplankton growth efficiency ( Fig 6 ) was significantly reduced at elevated p CO 2 (p-value = 0.0003, Fisher’s sign test).