Table 1. Antibacterial activity of the 27 isolated bacteria from Anemonia sulcata (samples M1, M2), Holothuria tubulosa (M3, M4), Holothuria forskali (M6), Actinia equina (M7, M8) and holothurian feces (M9) against eight pathogenic bacteria.

Sample	Isolate ID	Staphylococcus aureus	Erwinia amylovora	Pseudomonas aeruginosa PAO1	Agrobacterium tumefaciens	Vibrio brasiliensis	Vibrio anguillarum	Vibrio mediterranei	Vibrio coralliilyticus	Total
M1: Anemonia sulcata (tentacles)	M1-5-2	+	-	-	-	-	+	-	-	2
	M1-33	+	+	-	-	-	-	-	-	2
M2: Anemonia sulcata (gut)	M2-12	+	+	-	-	-	-	-	-	2
	M2-16-2	+	+	-	-	-	+	+	-	4
	M2-61	+	+	-	-	-	+	+	-	4
M3: Holothuria tubulosa (intestines)	M3-59	+	-	-	+	-	-	-	-	2
M4: Holothuria tubulosa (coelomic fluid)	M4-71	+	-	-	-	-	+	-	-	2
M6: Holothuria forskali (coelomic fluid)	M6-1	-	+	-	-	-	-	-	-	1
	M6-12-2	+	-	+	-	-	-	-	-	2
	M6-25	+	-	-	-	-	-	-	-	2
	M6-26-1	-	+	-	-	-	-	-	-	1
	M6-26-2	-	+	-	-	-	-	-	-	1
	M6-33	-	+	-	+	-	-	-	-	2
	M6-45	+	+	-	+	-	-	-	-	3
M7: Actinia equina (tentacles)	M7-11-1	+	+	-	-	-	-	-	-	2
	M7-11-2	+	+	-	-	-	-	-	-	2
M8: Actinia equina (gut)	M8-1	+	+	-	+	-	-	-	-	3
	M8-2	+	-	-	+	-	-	-	-	2
	M8-6	+	+	-	+	-	-	-	-	3
	M8-15	+	-	-	-	-	-	-	-	1
	M8-24-1	+	+	-	-	-	-	-	-	2
M9: H. tubulosa and H. forskali (feces)	M9-11	+	+	-	+	-	-	-	-	3
	M9-27-1	-	+	-	-	-	-	-	-	1
	M9-44	-	+	-	-	+	+	+	+	5
	M9-53-1	+	+	-	-	-	+	+	-	4
	M9-53-2	-	+	-	-	-	-	+	-	2
	M9-61	-	+	-	-	-	+	+	-	3
	Total	19	20	2	7	1	7	6	1

– no antibacterial activity; + inhibitory activity observed