Table 3. a) Estimated DOC release on the reef flat at Pest Bay. b) Scenario without BCMs. BCMs were replaced with BCM-free sediment.

	DOC release (mmol C m−2 h−1)			Benthic cover (%)	Reef DOC release (mmol C m−2 reef h−1)	References
	Day	Night	24 hrsa		24 hrsa
a)
BCMs	1.36	3.52	2.44	24	0.59	Present study
Macroalgae (Dictyota)	0.49	−0.01	0.24	17	0.04	[16]
Turf	1.08	0.11	0.60	19	0.11	Day16 Night19
Sediment	−0.85	−0.64	−0.75	25	−0.19	Present study
Corals (Madracis)	−4.58	−1.42	−3.00	13	−0.39	[16]
Total				98	0.16
b)
Sediment	−0.85	−0.64	−0.75	24	−0.18	Present study
Macroalgae (Dictyota)	0.49	−0.01	0.24	17	0.04	[16]
Turf	1.08	0.11	0.60	19	0.11	Day16 Night19
Sediment	−0.85	−0.64	−0.75	25	−0.19	Present study
Corals (Madracis)	−4.58	−1.42	−3.00	13	−0.39	[16]
Total				98	−0.60

^aassuming 12 h each for both day and night.