Carbon storage in the top 25 cm of Australian seagrass ecosystems and those that would be estimated by applying the carbon storage values of P. oceanica to the same area of seagrass.

Corg stock is the product of the area of seagrass (see Table 6) and the mean carbon storage (Table 2) of the seagrasses most likely to dominate those areas. % emission refers to the sedimentary Corg in Australian seagrass ecosystems as a % of annual CO2 carbon emissions in Australia. (Zm = Zostera muelleri; Pa = Posidonia australis; Ps = Posidonia sinuosa; Aa = Amphibolis antarctica; Ho = Halophila ovalis; Cs = Cymodocea serrulata; Hu = Halodule uninervis; Cr = Cymodocea rotundata; Si = Syringodium isoetifolium; Th = Thalassia hemprichii; Po = Posidonia oceanica).