TABLE 1.

Summary of bacterial diversity metrics of samples

Sample group	Sampling point	No. of phylaa	No. of generab	Species richness (d)	Pielou’s evenness (J′)	Shannon diversity (H′, loge)
Processing	Prescald	18	361	78.2	0.5	3.1
	Postplucker	17	330	71.4	0.5	2.8
	Pre-immersion chill	15	330	71.4	0.5	2.7
	Post-immersion chill	16	346	74.9	0.5	2.7
	Post-air chill	17	363	78.6	0.4	2.4
Shelf life	Start of shelf life	20	452	97.9	0.4	2.5
	End of shelf life	10	118	25.4	0.1	0.5
Environmental	Scald water	11	186	40.2	0.2	1.3
	Immersion chill water	16	323	69.9	0.5	2.7
	Air from air chill room	18	285	61.7	0.5	2.8
	Wall in air chill room	9	104	22.4	0.3	1.2
	Shackles through air chill room	16	360	78.0	0.5	2.8
Total		29	756	163.9	0.4	2.9

^aThe number of phyla identified for each sampling point.

^bThe number of genera identified for each sampling point.