Table 2. Health metric scoring criteria for bleached microfragments.

The health metric scoring for coral fragments that had been bleached were observed visually under a light microscope and given a score 0–5 using the criteria listed here.

Score	Description of metric for bleached microfragments
0	Dead, tissue sloughing or >25% bacterial growth, >75% brown dots or sheeting of dead/dying algal symbionts on surface of coral
1	>75% damaged polyps, <10% intact coenosarc, >50% brown dots or sheeting of dead/dying algal symbionts on surface of coral
2	50% damaged polyps, 25% intact coenosarc, >25% brown dots or sheeting of dead/dying algal symbionts on surface of coral
3	>75% intact polyps, 50% intact coenosarc, <10% brown dots or sheeting of dead/dying algal symbionts on surface of coral, no bacterial growth
4	Intact polyps, 75% intact coenosarc, <5% brown dots or sheeting of dead/dying algal symbionts on surface of coral
5	Intact polyps, 100% intact coenosarc, no brown dots or sheeting of dead/dying algal symbionts on surface of coral