Table 2.

Organic carbon and nitrogen contents (weight %) and C/N ratios of the sediments samples from Lake Cowan (C), Lake Dundas (D), Lake Lefroy (L), and Lake Yellowdine (Y).

	Carbon	Nitrogen	C/N
C1	0.109 (0.005)	0.0061 (0.0003)	18.33
C2	0.294 (0.005)	0.0259 (0.0003)	11.15
C3	0.1075 (0.005)	0.0048 (0.0003)	22.00
C4	0.081(0.002)	0.0045 (0.0009)	20.00
D1	0.1005 (0.001)	0.0075 (0.0002)	14.29
D2	0.3325 (0.001)	0.0313 (0.0016)	10.65
D3	0.09 (0.008)	0.0079 (0.0019)	11.25
D4	0.0985 (0.003)	0.0069 (0.0008)	14.29
D5	0.0765 (0.002)	0.0048 (0.0008)	16.00
L1	0.1945(0.002)	0.0156 (0.0013)	11.88
L2	0.0805 (0.001)	0.0057 (0.0009)	13.33
L3	0.189 (0.001)	0.0187 (0.0005)	10.00
L4	0.0925 (0.001)	0.0054 (0.0001)	18.00
L5	0.243 (0.002)	0.0220 (0.0005)	10.91
L6	0.092 (0.002)	0.0058 (0)	15.00
Y1	0.3905 (0.001)	0.0330 (0.0005)	11.82
Y2	0.155 (0.001)	0.0148 (0.0009)	10.67
Y3	0.0665 (0.002)	0.0057 (0.0006)	11.67
Y4	0.0725 (0.004)	0.0087 (0.0010)	7.78
Y5	0.2415 (0.001)	0.0212 (0.0007)	11.43
Y6	0.042 (0.005)	0.0033 (0.0016)	13.33
Y7	0.183 (0.004)	0.0142 (0.0008)	12.86
Y8	0.1735 (0.004)	0.0135 (0.0013)	13.08