. 2021 Jul 2;8:666535. doi: 10.3389/fvets.2021.666535

Table 3.

Comparison of α-diversity indices among different growth periods.

Diversity indices	8 weeks	20 weeks	50 weeks	SEM	P-value
ACE	1,594.39^Bc	1,653.17^Bb	2,460.21^Aa	168.13	0.0010
Chao1	1,547.78^Bc	1,660.92^Bb	2,422.61^Aa	134.25	0.0070
Shannon	6.54	6.51	7.16	0.26	0.017
Simpson	0.95	0.97	0.98	0.0047	0.56

Means within a row lacking a common lowercase superscript letter mean significant differences with a P-value < 0.05, and means within a row lacking a common uppercase superscript letter mean extremely significant differences with a P-value < 0.01. Data are expressed as the means and pooled standard error of the mean (SEM).

ACE, abundance-based coverage estimator.