Table 1.

Results of the outlier identification method applying to the substrate MUF-P. Definitions of the different fractions of APA in this table are described in the Methods section.

APA	Number of measurements	Number of identified outliers	${\overline{\mathit{x}}}_{\mathit{l}\mathit{o}\mathit{g}}$ before/after outlier identification (nmol L−1 h−1)	slog before/after outlier identification (nmol L−1 h−1)
Bulk	2266	0	0.89/0.89	1.19/1.19
Dissolved	292	0	0.49/0.49	1.21/1.21
Particulate	116	2	0.0045/−0.047	0.97/0.89
Bacterial	92	0	1.31/1.31	0.77/0.77
Phytoplankton	93	0	1.78/1.78	0.76/0.76
Trichodesmium	30	0	0.37/0.37	1.67/1.67

${\overline{\mathit{x}}}_{\mathit{l}\mathit{o}\mathit{g}}$: log10-transformed mean values.

s_log : log10-transformed standard deviation values.