TABLE 2.

Percentages of SRB in sediment slurries as determined by the summation of labeled probe values

Treatment	% of SRB
	Probe 687 (Desulfovibrio sp.)	Probe 660 (Desulfobulbus sp.)	Probe 814 (Desulfococcus sp.)	Probe 129 (Desulfobacter sp.)	Probe 221 (Desulfobacterium sp.)
Control	13.1 ± 7.1a	15.9 ± 2.2	10.6 ± 3.3	30.7 ± 4.5	29.6 ± 2.1
Lactate amended	16.7 ± 2.7	22.8 ± 2.7	19.2 ± 1.0	24.2 ± 2.3	16.8 ± 0.6
Acetate amended	1.2 ± 0.3	0.63 ± 0.1	3.4 ± 1.5	41.6 ± 3.2	53.0 ± 2.8

^aMean ± standard error.