Table 2.

Summary of all the RNA-based library reads (rarefraction 402). Only cold water and the biofilm from DWDSs A–B contain sufficient archaea read counts for further analysis (bold numbers). Others include Eukaryota or unassigned domain reads.

DWDS	Source	Total reads (100%)				Archaea reads (12.7%)				Bacteria reads (87.3%)				Other (0.004%)
		Avg.	Min	Max	N	Avg.	Min	Max	%	Avg.	Min	Max	%	Avg.	Min	Max
A	Cold water	4600	470	9310	21	1990	70	5700	43.2	2610	400	6300	56.8	<5	0	10
	Hot water	12,820	410	30,340	8	100	0	310	0.8	12,710	410	30,310	99.2	0	0	0
	Biofilm	17,770	15,090	20,450	2	13,460	12,990	13,940	75.8	4310	2100	6510	24.2	0	0	0
B	Cold water	6210	410	17,270	22	4180	50	16,510	67.2	2030	220	6330	32.7	<5	0	10
	Hot water	18,120	1170	48,430	7	170	0	400	0.9	17,950	1170	48,380	99.1	0	0	0
	Biofilm	17,860	2260	33,460	2	7660	90	15,220	42.9	10,200	2170	18,230	57.1	0	0	0
C	Cold water	22,080	1760	84,160	22	0	0	<5	0.0	22,080	1760	84,160	100.0	0	0	0
	Hot water	32,160	420	53,210	7	<5	0	10	0.0	32,160	420	53,200	100.0	<5	0	10
	Biofilm	26,300	2670	49,940	2	10	0	20	0.0	26,300	2660	49,940	100.0	0	0	0
D	Cold water	14,190	640	35,090	23	10	0	110	0.0	14,190	640	35,090	100.0	0	0	0
	Hot water	3840	2160	5610	6	0	0	0	0.0	3840	2160	5600	100.0	<5	0	<5
	Biofilm	23,150	10,560	44,240	4	<5	0	20	0.0	23,150	10,560	44,220	100.0	0	0	0
E	Cold water	7490	480	31,850	18	170	0	1560	2.3	7320	480	31,850	97.7	<5	0	20
	Hot water	8890	870	14,170	6	<5	0	<5	0.0	8880	870	14,170	100.0	<5	0	10
	Biofilm	4790	730	16,780	5	220	0	830	4.6	4570	730	16,600	95.4	0	0	<5