Effects of aging on the skin and gill microbiota of farmed seabass and seabream

Rosado, Daniela; Pérez-Losada, Marcos; Pereira, Ana; Severino, Ricardo; Xavier, Raquel

doi:10.1186/s42523-020-00072-2

Animal Microbiome

Table 1 Mean alpha-diversity values, and alpha- and beta-diversity comparisons for the skin and gill microbiota of the different age groups of seabass Dicentrarchus labrax and seabream Sparus aurata (n = 60 per species x age group x tissue)

From: Effects of aging on the skin and gill microbiota of farmed seabass and seabream

	Seabass								Seabream
	Skin				Gill				Skin		Gill
Alpha-diversity mean values	EJ		LJ	MA	EJ		LJ	MA	J	MA	J	MA
Shannon	3.5 ± 1		4 ± 0.4	3.8 ± 1	3.5 ± 1		3.6 ± 1	3.7 ± 1	3.3 ± 1	3.4 ± 1	2.9 ± 1	3.2 ± 1
PD	20 ± 7		28 ± 11	27 ± 9	19 ± 6		22 ± 8	23 ± 9	19 ± 9	18 ± 8	13 ± 6	15 ± 6
ACE	164 ± 66		239 ± 106	226 ± 83	138 ± 52		159 ± 69	175 ± 73	155 ± 77	145 ± 71	99 ± 49	110 ± 54
Simpson 1-D	18 ± 8		25 ± 8	23 ± 11	20 ± 11		23 ± 10	24 ± 11	15 ± 10	16 ± 9	11 ± 8	14 ± 10
Alpha-diversity comparisons	Overall	EJ vs LJ	LJ vs MA	EJ vs MA	Overall	EJ vs LJ	LJ vs MA	EJ vs MA	J vs MA		J vs MA
Shannon	16 (5⁻⁷)	6 (0.001)	2 (0.05)	−3 (0.003)	3 (0.1)	2 (0.1)	−0.2 (0.9)	−2 (0.1)	1 (0.3)		5 (0.03)
PD	23 (3⁻⁹)	6 (1⁻⁴)	1 (0.6)	−5 (1^− 4)	7 (0.002)	2 (0.04)	−1 (0.5)	− 4 (0.001)	1 (0.4)		4 (0.04)
ACE	17 (2⁻⁷)	6 (1⁻⁴)	1 (0.6)	−5 (1^− 4)	9 (0.0003)	2 (0.05)	−2 (0.2)	−4 (0.001)	1 (0.3)		2 (0.2)
Simpson 1-D	13 (7⁻⁶)	5 (1⁻⁴)	−2 (0.2)	4 (0.002)	2 (0.1)	2 (0.3)	0.4 (0.9)	2 (0.1)	0.1 (0.8)		4 (0.1)
Beta-diversity comparisons	Overall	EJ vs LJ	LJ vs MA	EJ vs MA	Overall	EJ vs LJ	LJ vs MA	EJ vs MA	EJ vs MA		EJ vs MA
Unifrac Unweighted	0.04 (9⁻⁵)	0.1 (0.001)	0.02 (0.01)	0.1 (0.001)	0.1 (9⁻⁵)	0.04 (0.001)	0.1 (0.001)	0.1 (0.001)	0.02 (9⁻⁵)		0.03 (9⁻⁵)
Unifrac Weighted	0.1 (9⁻⁵)	0.1 (0.001)	0.1 (0.001)	0.1 (0.001)	0.1 (9⁻⁵)	0.02 (0.1)	0.02 (0.2)	0.04 (0.01)	0.01 (0.3)		0.04 (9⁻⁵)
Bray-Curtis	0.1 (9⁻⁵)	0.1 (0.001)	0.1 (0.001)	0.03 (0.02)	0.1 (9⁻⁵)	0.1 (0.001)	0.1 (0.001)	0.1 (0.001)	0.02 (0.001)		0.03 (2⁻⁴)

Variation in alpha-diversity was assessed using Linear Mixed Effect models, with age groups as a fixed factor and sampling time as a random factor. Differences in beta-diversity were assessed using PERMANOVA. For each linear model effect test (alpha-diversity) we report the F statistic and significance (P value) and for each PERMANOVA test (beta-diversity) we report the R2 statistics and significance (P value). Significant differences are indicated in bold
EJ early juveniles, LJ late juveniles, MA mature adults, J juveniles

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