Table 1. Acropora palmata colonies used in the challenge experiments.

Colony	Number of Fragments	Tissue Loss	No Tissue Loss
1	2	F1 Isolate 2 A. palmataF1 Isolate 8 wastewater
2	1	F3 Isolate 4 S. siderea
3	1		F1 Isolate 5 C. abbreviata
4	3	F3 Isolate 2 A. palmataF1 Isolate 7 PDL100F3 Isolate 7 PDL100
5	3	F2 Isolate 4 S. sidereaF2 Isolate 6 wastewater	F3 seawater control
6	2	F3 vehicle control	F3 Isolate 3 A. palmata
7	4	F1 Isolate 1 A. palmataF2 Isolate 1 A. palmataF2 Isolate 2 A. palmataF1 Isolate 4 S. siderea
8	1		F1 seawater control
9	1	F1 vehicle control
10	2	F3 Isolate 5 C. abbreviataF2 Isolate 7 PDL100
11	2	F3 Isolate 8 wastewater	F2 E. coli control
12	1	F1 Isolate 6 wastewater
13	3		F1 Isolate 3 A. palmata F2 Isolate 5 C. abbreviataF3 E. coli control
14	2	F3 Isolate 1 A. palmataF2 Isolate 8 wastewater
15	1	F2 vehicle control
16	1		F1 E. coli control
17	1		F2 Isolate 3 A. palmata
18	1	F3 Isolate 6 wastewater
19	1		F2 seawater control

Number of fragments per A. palmata colony, the challenge for each fragment (control or inoculation with a Serratia marcescens test isolate), and the result of each challenge (tissue loss or no tissue loss) are included. Three coral fragments (F1, F2, F3) were used for each challenge.