Table 2. Bray Curtis dissimilarity (BC) of bacterioplankton communities among sampling sites.

Average within and between-group BC and analysis of similarity (ANOSIM) between sampling sites of free-living and particle-attached bacterial communities in the water column.

	Within-group BC	Comparison	Between-group BC	ANOSIM R	P-valuea
Free-living	0.67			0.63	0.001
CoI	0.26	CoI–RoR	0.61	0.72	0.017
RoR	0.55	CoI–BoC	0.89	0.89	0.017
BoC	0.64	RoR–BoC	0.71	0.29	0.108
Particle-attached	0.70			0.83	0.001
CoI	0.50	CoI–RoR	0.75	0.96	0.015
RoR	0.55	CoI–BoC	0.91	1.00	0.015
BoC	0.49	RoR–BoC	0.61	0.48	0.019

Notes.

^aFor pairwise comparisons between the individual sampling sites, Cowley Islet (CoI), Roca Redonda (RoR), and Bolivar Channel (BoC), false discovery rate (FDR)-adjusted p-values are shown. P-values defined as significant at a threshold of 0.05 are bolded.