Table 1.

Initial conditions of sample waters used in incubation experiments

Parameter [reference]	Value for expt
	Exp I	Exp II
No. of bacteria (×105 ml−1)	19.4	17.0
DOC (μmol liter−1)	316	245
TDAA (μmol liter−1)	5.71	3.77
TDAA %DOC	6.8	5.6
Degradation index [20]	−0.44	0.23
Degradation index [21]	3.78	4.47
TDNS (μmol liter−1)	3.71	3.38
TDNS %DOC	6.8	7.8