Table 2.

Carbon monoxide release by components from the O . algarvensis habitat and double distilled water (ddH ₂O) in μmol kg⁻¹ (or l⁻¹) day⁻¹. ZnCl₂ was added to incubations to stop biological activity. Mean values and standard deviations are given in parentheses

	Without ZnCl2	With ZnCl2
Dead rhizomes (dry weight)	0.33–17.46 (4.86 ± 6.95)	3.64–55.60 (24.08 ± 19.12)
Dead rhizomes (wet weight)	0.04–1.85 (0.55 ± 0.75)	0.65–6.53 (3.42 ± 2.17)
Seawater (volume)	0–0.04	0–0.01
Sediment (dry weight)	0	0
ddH2O (volume)	0.01–0.02	0.01–0.02

n ≥ 3 per incubation type.