Table 7. Estimated annual carbon accumulation rates of Australia’s seagrass habitats.

Region	Area (km2)	Storage (km2)	Annual Corg accumulation at different sediment accumulation rates
			(Mt y−1)
			0.15 mm y−1	1.5 mm y−1	9.9 mm y−1
NSW	161	11.74	<0.001	0.002	0.019
TAS	845	8.47	0.001	0.011	0.071
VIC	470	11.48	0.001	0.008	0.053
SA	9620	8.47	0.012	0.122	0.806
QLD/NT/TS	56473	5.10	0.043	0.432	2.850
WA	25000	9.53	0.036	0.357	2.358
Total	92569		0.093	0.932	6.157
% of annual emissions			0.063	0.625	4.129
Mediterranean	92569	20.16	0.280	2.799	18.476
% of annual emissions			0.188	1.877	12.389

Estimates are based on the area of seagrass in different regions of Australia (see Table 2), the mean C_org stocks (Table 4) of the seagrasses most likely to dominate those areas, and a range of sediment accumulation rates derived from the literature and unpublished data (Table 3).