Table 3. Results of the AMOVA analyses for each of the three Ophiothrix species based on the 16S.

Source of variation	d.f.	Sum of squares	Fixation index	% of variation	p-value
Ophiothrix fragilis
Among basins	1	84.1	FCT = 0.580	58.02	0.028*
Among sites within basins	6	6.7	FSC = 0.015	0.65	0.293
Within sites	128	114.2	FST = 0.587	41.3	0.000**
Ophiothrixsp. II
Among basins	1	0.512	FCT = −0.0007	0.000	0.483
Among sites within basins	9	4.854	FSC = −0.0007	0.000	0.487
Within sites	182	99.323	FST = −0.0013	100	0.535
Ophiothrixsp. III
Among basins	1	0.315	FCT = −0.0158	0.000	1.000
Among sites within basins	3	0.933	FSC = −0.0295	0.000	0.944
Within sites	74	44.930	FST = −0.0458	100	0.966