Table 2.

Summary of analysis of similarity (ANOSIM) indicating both the R-statistic and p-values for the overall test (similarity of the endobiotic community of the four sponges species), and pairwise test comparing the four sponge species between themselves. ‘*’ = indicates 95% significance.

Sponge species	R-statistic	P-value
Overall	0.1534	0.0139*
S. spinosulus vs S. officinalis	0.1556	0.0897
S. spinosulus vs I. cf. variabilis	0.0011	0.4482
S. spinosulus vs I. oros	0.1823	0.0586
S. officinalis vs I. cf. variabilis	0.2211	0.0403*
S. officinalis vs I. oros	0.9253	0.0004*
I. cf. variabilis vs I. oros	0.0666	0.1795