Table 2. Uncertainty Analysis^a.

	δ13C‰	12S (μg/L)	13S (μg/L)	12Sbio (μg/L)	13Sbio (μg/L)	X (μg/L)
model run with mean input parameters	2.21	50.72	0.57	20.75	0.23	549.82
Monte Carlo simulations	2.17 ± 0.47	52.89 ± 10.25	0.59 ± 0.12	21.60 ± 7.18	0.24 ± 0.08	549.77 ± 0.31

^aThe estimated average and standard error of output parameters calculated from Monte Carlo analyses of 50 000 randomly generated sample scenarios based on the error variability of input parameters (K_m = 237 ± 57 μg/L, μ_max = 0.11 ± 0.02hr^–1, S_in = 30 000 ± 600 μg/L, and k_tr = 0.0025 ± 0.0005s^–1).