Table 1.

Blue carbon stocks (a) and sequestration rates (b) by vegetated coastal ecosystems in Australia. Estimates for tidal marshes, mangrove forests, and seagrass beds are from Serrano et al.²¹.

Ecosystem	Above ground biomass (Mg C ha−1)	Total area (Mha)	Stock above ground biomass (Tg C)
	Mean ± SD	Range	Range
(a)
Tidal marshes	7.5 ± 6.1	1.4–1.5	2.3–2.6
Mangrove forests	125 ± 90	0.3–1.1	50–158
Seagrass beds	1.9 ± 2.0	9.3–12.8	16–22
Kelp forests	3.2 ± 0.5	3.2–7.1	10–23
Total		14.2–22.5	77–206

Ecosystem	Sequestration rates (Mg C ha−1 year−1)	Total area (Mha)	Sequestration rates (Tg C year−1)
(b)
Tidal marshes	0.39 ± 0.3	1.4–1.5	0.48–0.54
Mangrove forests	12.6 ± 0.9	0.3–1.1	0.4–1.4
Seagrass beds	0.36 ± 0.3	9.3–12.8	2.5–3.5
Kelp forests	0.40 ± 0.1	3.5–7.1	1.3–2.8
Total		14.2–22.5	4.9–8.5