Table 1.

Summary of probiotic trial information and sequencing data.

	Trial 1	Trial 2	Trial 3
Sample types	Water, Swabs, Oysters	Water, Swabs, Oysters	Water
Sampling days (0 = spawn)	W:1,12 / OS:5,12	W:1,9 / OS:6,9	W: 5,8,12
Volume water filtered	410–750 mL	7–10 mL	1300–1700 mL
Trial dates	July 11–23, 2012	Jan 9–18, 2013	June 3–15, 2016
Bacterial reads from 12 water samples	1.3 million	1.8 million	5.7 million
Methods	Mo Bio extraction MiSeq, 2x250 PE	Mo Bio extraction MiSeq, 2x250 PE	Puregene extraction HiSeq, 2x100 PE
16S region	V4 (515F/806R)	V4 (515F/806R)	V6 (967F/1064R)

W, water; S, swab; O, oysters.