Figures 1 and 2

Figure 1 Spearman’s correlations between the
relative abundance of bacterial genus and the percentage content of SAFAs,
MUFAs, and PUFAs
in bacterial degradation of permafrost DOC experiments and hierarchical cluster
analysis for bacterial genera.

Figure 2 Stable
carbon and radiocarbon isotopes (δ13C
and ∆14C) of Chlorella
(Chlo), frozen soil DOC, and Daphnia
in the treatments having DOC:Chlo ratios of 1:2, 1:1, and 2:1. The treatment of
Daphnia fed exclusively with Chlorella or DOC is set as a positive
control and a negative control, respectively. Blue dot indicates Daphnia and red dot represents diet. The
error bar represents the analysis error.
Figure 3 The growth
and reproduction of Daphnia raised on
Daphnia (Chlo) and bacteria converted
soil DOC with DOC:Chlo ratios of 1:2, 1:1, and 2:1. The treatment of Daphnia fed exclusively with Chlorella or DOC is set as a positive
control and a negative control, respectively. Body length (mm, mean ± SD) (a),
cumulative neonates (ind-1, mean ± SD) (b), survival rate (%, mean ±
SD) (c), and intrinsic rates of population increase (d-1).