Effects of macrobenthic bioturbation on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperatures

Figures & data

Figure 1. Properties of the surface sediment samples incubated under different temperatures. Left column for Tubificid worms and right column for C. fluminea.

Figure 2. Abundance of the archaeal and bacterial amoA gene detected in surface sediment samples incubated under different temperatures.

Table 1. Diversity of the archaeal and bacterial amoA gene in sediment samples with the bioturbation of C. fluminea or Tubificid Worms under different temperatures.

	Clone numbers		OTUs		SChao1		H
Clone library	Archaeal amoA gene	Bacterial amoA gene	Archaeal amoA gene	Bacterial amoA gene	Archaeal amoA gene	Bacterial amoA gene	Archaeal amoA gene	Bacterial amoA gene
C. fluminea
15 °C	32	36	2	13	2	18.25	0.31	2.12
22 °C	39	35	2	8	2	9.5	0.27	1.66
28 °C	17	22	2	6	2	16	0.60	0.90
Tubificid worms
15 °C	23	35	4	3	7	4	0.53	0.26
22 °C	24	33	1	2	1	2	0	0.14
28 °C	22	22	2	1	2	1	0.18	0

Note: OTUs were defined as 5% difference in nucleic acid sequences. H (Shannon–Wiener) and S_Chao1 were calculated by the DOTUR software package.

Figure 3. Relative percentages of the different ammonia-oxidizing archaea and bacteria groups detected in surface sediment samples incubated under different temperatures.