Table 2.

Number of sequences (reads) and observed diversity for 16S rRNA amplicons for the different samples analyzed in this study.

Sample	N° of reads	Shannon index	Simpson index	Chao 1 index
UNTREATED CONTROLS
C0	77,780	2.59	0.88	150.6
C2	83,091	1.79	0.77	77.5
C5	190,124	1.91	0.79	116.1
C7	120,747	3.22	0.91	208.2
C10	94,357	2.42	0.86	126
ACTIVATED FILM
AF0	106,044	2.79	0.88	131.1
AF2	92,738	1.64	0.74	113
AF5	83,014	1.92	0.79	108
AF7	84,833	1.98	0.75	142.5
AF10	78,491	1.73	0.74	110.8
HIGH HYDROSTATIC PRESSURE
HP0	99,732	0.99	0.78	107.6
HP2	94,189	1.96	0.71	123
HP5	89,368	1.72	0.73	150.1
HP7	98,761	1.72	0.74	110.5
HP10	81,864	1.94	0.74	132.5
ACTIVATED FILM PLUS HIGH HYDROSTATIC PRESSURE
AF-HP0	114,530	3.34	0.94	172
AF-HP2	90,700	1.68	0.68	132.3
AF-HP5	98,905	1.96	0.76	142.6
AF-HP7	96,927	2.30	0.84	150.8
AF-HP10	97,467	3.44	0.94	157.8