Sensitivity of Heterotrophic Bacteria in the Low-Salinity Water Areas and Estuary in Siak District toward Pathogenic Bacteria in Fish

Table 3

Antagonism test results of bacterial isolates against pathogenic bacteria.

Bacterial isolates test	Diameter of the inhibition zone (mm)
	V. alginolyticus					A. hydrophila					Pseudomonas sp.
	(+)	U1	U2	U3	R (mm)	(+)	U1	U2	U3	R (mm)	(+)	U1	U2	U3	R (mm)
H2	6	14	12	13	13	4	7	6.5	6.5	6.7	5	7	6.5	7.5	7
H4	3.5	11	12.5	14.5	12.6	3.5	1	2	2	1.7	3	5	12.5	11	9.5
H8	7.5	12	11	11.5	11.5	7	11	6	4.5	7.2	6	6	10.5	11	9.2
H9	9	0	3	4	2.3	6.5	5.5	5	4.5	5	2	6.5	7	5.5	6.3
H10	8	5	5	6	5.3	5.5	7	6	5.5	6.2	7	7.5	8	9.5	8.3
H12	6	15	16.5	14.5	15.3	10	5.5	3.5	4	4.3	2	11.5	6	7	8.2
H15	7	13	9.5	9	10.5	7.5	4	2	3.5	3.2	7	6	4	5.5	5.2
H16	3.5	8	13	9	10	2	5.5	5	7	5.8	3	9.5	6	7	7.5
H17	4	11	9	9	9.7	8	7	4.5	5	5.5	6	7.5	11	6.5	8.3
H24	3	0	6	1	2.3	5	2.5	4.5	1.5	2.8	1	5	6	9.5	6.8

U = repetition; R = average.