Fig. 2. Trends in dissolved organic carbon (DOC) and dissolved reactive phosphorus (DRP) over a 40-d anaerobic incubation period for silt + clay suspensions with control, 0-d, and spiked-addition treatments. Included are data for DOC and DRP from an aerobic control experiment for the 0-d treatment. Arrows denote times of dextrose addition, and error bars represent standard deviations for duplicate reactors.