Voucher number Sponges Site / year Number of bacteria Frequencies absolute (relative) Interactivity clusters           I II III 32007Gc Gc CA / 2007 2 1 (50.0%) 1 1 1 12007Hv Hv CA / 2007 2 0 (0.0%) 0 0 2 32007Mm Mm CA / 2007 2 0 (0.0%) 0 0 2 32007Pa Pa CA / 2007 3 0 (0.0%) 0 0 3 42006Pc Pc CA / 2006 2 1 (50.0%) 1 1 1 32007Pc Pc CA / 2007 2 0 (0.0%) 0 0 2 32007Ti Ti CA / 2007 3 0 (0.0%) 0 0 3 42006Dr Dr Pv / 2006 5 0 (0.0%) 0 0 0 42006Hf Hf Pv / 2007 2 1 (50.0%) 1 1 1 82005Mm Mm Pv / 2005 4 2 (16.7%) 1 2 2 42006Mm Mm Pv / 2006 2 1 (50.0%) 1 1 1 52005Pj Pj PV / 2005 2 2 (100.0%) 2 2 0 42006Pj Pj PV / 2006 2 0 (0.0%) 0 0 2 92010Cc Cc Us / 2010 2 0 (0.0%) 0 0 0 82011Cc Cc Us / 2011 3 0 (0.0%) 0 0 0 92010Hh Hh Us / 2010 2 0 (0.0%) 0 0 2 82011Hh Hh Us / 2011 4 2 (16.7%) 1 2 2 92010Mm Mm Us / 2010 3 2 (33.3%) 1 2 1

Cagarras Archipelago (CA), Praia Vermelha beach (PV), Urca square (Us). Sponge species: Cliona aff. celata (Cc), Dragmacidon reticulatum (Dr), Geodia cortiscotylifera (Gc), Haliclona fugidia (Hf), Haliclona vansoesti (Hv), Hymeniacidon heliophila (Hh), Mycale microsigmatosa (Mm), Pachychalina alcaloidifera (Pa), Petromica citrina (Pc), Paraleucilla magna (Pm), Polymastia janeirensis (Pj), Tedania ignis (Ti). Number of isolates classified into three different interactivity clusters, termed: (I) active, (II) sensitive and (III) resistant strains.

Table 6: Cross-inhibition among bacteria isolated from the same sponge specimen.