Table 2.

Bacterial growth rates (hour⁻¹ and day⁻¹) and coefficient of determination (R²), production rates (hour⁻¹ and day⁻¹) and coefficient of determination (R²), and doubling time for light, dark-control, and dark C + N + P treatments. Bacterial growth and production rates were determined from the slope of the linear regression of ln-transformed bacterial abundance or biomass versus time (from time zero to the end of the exponential growth phase).

Treatment	Growth rate (h−1)	Growth rate (d−1)	R 2	Production rate (h−1)	Production rate (d−1)	R 2	Doubling time
Light	0.026b	0.626	0.86	0.018b	0.437	0.98	1.106
Dark-control	0.033b	0.789	0.74	0.021a,b	0.500	0.62	0.878
Dark C + N + P	0.056a	1.346	0.74	0.047a	1.128	0.67	0.515

Superscript letters indicate the result of ANCOVA and Tukey test for difference among slopes-q 0.05.