Table 9.

Alpha-diversity index of the distal intestinal microbiota of turbot before or after V. harveyi challenge.

Item	Sobs	Shannon	Simpson	Ace	Chao1	Pielou-e
Before V. harveyi challenge
Phylum level
Control	9.00 ± 1.00	0.53 ± 0.07	0.69 ± 0.06	9.35 ± 1.12	9.00 ± 1.00	9.00 ± 1.00
SM	10.00 ± 1.00	0.65 ± 0.25	0.62 ± 0.16	10.33 ± 1.03	10.00 ± 1.00	10.00 ± 1.00
FPH	9.00 ± 2.65	0.19 ± 0.04	0.92 ± 0.03	13.54 ± 0.26	9.33 ± 2.73	9.00 ± 2.65
Genus level
Control	40.00 ± 14.18	0.73 ± 0.12	0.65 ± 0.06	59.18 ± 26.66	53.32 ± 20.08	0.20 ± 0.02
SM	81.67 ± 14.84	1.16 ± 0.36	0.52 ± 0.17	98.17 ± 10.87	111.83 ± 5.89	0.27 ± 0.08
FPH	52.67 ± 8.76	0.75 ± 0.27	0.63 ± 0.16	61.58 ± 10.09	60.22 ± 10.58	0.19 ± 0.07
After V. harveyi challenge
Phylum level
Control	10.00 ± 2.08	0.63 ± 0.12	0.66 ± 0.07	12.91 ± 2.65	11.00 ± 2.08	0.27 ± 0.04
SM	10.00 ± 1.73	0.62 ± 0.18	0.65 ± 0.12	11.44 ± 1.40	10.28 ± 1.59	0.27 ± 0.07
FPH	8.67 ± 1.45	0.34 ± 0.18	0.81 ± 0.14	10.37 ± 1.37	9.17 ± 1.74	0.16 ± 0.08
Genus level
Control	67.67 ± 22.42	0.89 ± 0.24	0.60 ± 0.10	85.71 ± 32.93	86.80 ± 34.36	0.21 ± 0.04
SM	73.67 ± 18.98	1.10 ± 0.31	0.56 ± 0.14	107.47 ± 22.83	101.75 ± 24.77	0.26 ± 0.07
FPH	51.33 ± 6.89	0.56 ± 0.24	0.76 ± 0.15	79.04 ± 2.38	81.43 ± 13.87	0.14 ± 0.06

Note: Values are means and standard error of three replicate tanks.

Abbreviations: FPH, fish protein hydrolysate; Pielou_e, pielou's evenness; SM, soybean meal.