Table 12. Result of coral health index (CHI) reanalysis of data in Table 8 and 9 (lower panel) using the criteria of McField et al. (2024) (upper panel)

CHI Grade / Level	CHI grade / Level ranges	LCC (%)	FMC (%)	HFB (g/m2)	CFB (g/m2)
Very good/excellent1)	4.3–5.0	> 40: (5)	< 2: (5)	> 3,290: (5)	> 1,620: (5)
Good2)	3.5–4.2	20–40: (4)	2–5: (4)	2,740–3,290: (4)	1,210–1,620: (4)
Fair3)	2.7–3.5	10–20: (3)	5–12: (3)	1,860–2,740: (3)	800–1,210: (3)
Poor4)	1.9–2.6	5–10: (2)	12–25: (2)	990–1,860: (2)	390–800: (2)
Critical5)	1.0–2.8	< 5: (1)	> 25: (1)	< 990: (1)	< 390: (1)
Study Sites	Average grade for CHI*	LCC Grade	FMC Grade	HFB Grade	CFB Grade
BTNC-D (Siompu Is)1)	4.75; Very good1)	43.8 (5)1)	–0: (5)1)	3,243 (4)2)	16,466 (5)1)
BTNC-13 (Kadatua Is)1)	4.75; Very good1)	40.1 (5)1)	–0: (5)1)	3.288 (4)2)	2,055 (5)1)
BTNC-17 (Siompu Is)3)	3.25; Fair3)	23.5 (4)2)	–0: (5)1)	1,309 (2)4)	467 (2)4)
BTNC-C (Liwutonkidi Is) 3)	3.25; Fair3)	44.5 (5)1)	–0: (5)1)	1,677 (2)4)	327 (1)5)
BTNC-14 (Kadatua Is)3)	3.0; Fair3)	35.5 (4)2)	–0: (5)1)	994 (2)4)	81 (1)5)

The number in the bracket denotes the grade (Very good, Good, Fair, Poor, Critical) of the LCC, FMC, HFB, CFB.
The average grade of CHI = (Grade of LCC + Grade of FMC + Grade of HFB + Grade of CFB) / 4.
The average grade of CHI for BTNC-D = (5 + 5 + 4 + 5) / 4 = 4.75 (Very good).
Very good (excellent).
Good.
Fair.
Poor.
Critical.
LCC, live coral cover; FMC, Fleshy macro-algae cover; HFB, herbivore fish biomass; CFB, carnivore fish biomass.