Table 4.

Mean relative abundance (%) of main bacterial phyla and families identified in the intestine of hybrid striped bass.

Taxonomic Affiliation	CON	BP-F1	BP-E	BP-W	BP	p Value
Firmicutes	95.32	12.83	61.53	61.30	88.92	0.08
Peptostreptococcaceae #	72.66 c	6.90 abc	1.67 a	6.22 ab	66.54 bc	0.02
Streptococcaceae #	4.09 ab	2.29 a	52.09 b	49.18 b	6.40 ab	0.02
Leuconostocaceae #	0.10 b	1.05 a	4.64a	2.10 a	0.17 ab	0.03
Peptoniphilaceae #	1.90 b	0.22 ab	0.07a	0.23 ab	2.35 b	0.02
Clostridiaceae 1 #	3.27 d	0.44 abc	0.06 b	0.25 abc	1.38 cd	0.01
unclass. Clostridiales x	8.89	0.78	0.29	0.84	7.94	-
Other Firmicutes x	4.42	1.16	2.70	2.47	4.15	-
Proteobacteria	2.00	85.23	37.04	37.03	7.43	0.06
Enterobacteriaceae #	1.12 c	31.99 a	31.28 ac	1.02 bc	6.10 a	0.03
Sphingomonadaceae	0.30	18.04	2.46	15.29	0.25	0.26
Burkholderiaceae	0.24	34.43	3.01	20.06	0.26	0.11
Other Proteobacteria x	0.35	0.77	0.29	0.65	0.83	-
Bacteriodetes	2.25	0.79	0.49	0.74	3.31	0.06
Porphyromonadaceae	1.25	0.28	0.18	0.29	1.63	0.06
Other Bacteroidetes x	1.00	0.52	0.31	0.45	1.67	-
Other Bacteria x$	0.42	1.14	0.94	0.93	0.34	-

Mean relative abundance of taxonomic groups is presented as a percentage (%) of the total number of analyzed reads per sample. Please see Supplementary Table S2 for standard errors of the means. ^# Taxa showing a statistically significant difference by the Kruskal–Wallis sum rank test (p < 0.05). Different superscripts in the same row indicate that groups are significantly different by the Wilcoxon test for multiple pairwise comparisons. ^x Statistical test not performed because of group heterogeneity. ^$ Other bacteria include Actinobacteria, Spirochaetes, Fusobacteria, Acidobacteria, Planctomycetes, as well as unclassified bacteria.