Table 2 Means.
From: Seasonality of methane and carbon dioxide emissions in tropical seagrass and unvegetated ecosystems
Seagrass | Mudflat | Reef | |||||||
|---|---|---|---|---|---|---|---|---|---|
December | May | September | January | June | October | November | April | August | |
Salinity | 39.9 ± 0.1 | 39.9 ± 0.2 | 40.4 ± 0.1 | 38.8 ± 0.3 | 41.1 ± 0.1 | 39.1 ± 0.4 | 38.9 ± 0.03 | 38.3 ± 0.1 | 39 ± 0.03 |
Temperature (C˚) | 25.1 ± 0.3 | 32.6 ± 0.2 | 31.9 ± 0.2 | 24.3 ± 0.6 | 33.4 ± 0.1 | 31.6 ± 0.2 | 28.3 ± 0.04 | 27.7 ± 0.2 | 31.7 ± 0.1 |
Depth (m) | 0.7 ± 0.02 | 0.3 ± 0.02 | 0.8 ± 0.02 | 1.1 ± 0.02 | 0.5 ± 0.02 | 0.7 ± 0.02 | 2.6 ± 0.02 | 3.9 ± 0.01 | 3.3 ± 0.01 |
[O2] mg L−1 | 3.6 ± 0.03 | 3.8 ± 0.03 | 3.4 ± 0.1 | 4.1 ± 0.1 | 3.4 ± 0.04 | 3.1 ± 0.06 | 5.4 ± 0.08 | 4.5 ± 0.1 | 3.8 ± 0.05 |
[CH4] nmol kg−1 | 11.6 ± 0.4 | 21.2 ± 0.7 | 17.4 ± 0.7 | 14.8 ± 1.3 | 17.7 ± 0.9 | 16.5 ± 0.6 | 7.05 ± 0.1 | 7.1 ± 0.2 | 6.8 ± 0.2 |
pCO2 µatm | 479 ± 8 | – | 533 ± 13 | 491 ± 19 | 602 ± 12 | 620 ± 16 | 486 ± 9 | 483 ± 13 | 541 ± 9 |
[CO2] µmol kg−1 | 13.2 ± 0.2 | – | 12.5 ± 0.3 | 13.8 ± 0.3 | 13.6 ± 0.3 | 14.7 ± 0.3 | 12.4 ± 0.2 | 2.4 ± 0.6 | 12.8 ± 0.2 |
FCH4 µmol m−2 d−1 | 16.1 ± 0.9 | 25.04 ± 1.33 | 20.4 ± 1.01 | 18.8 ± 1.3 | 20.6 ± 0.8 | 15.8 ± 0.8 | 10.2 ± 0.7 | 9.6 ± 0.3 | 8.3 ± 0.2 |
FCO2 mmol m−2 d−1 | 2.6 ± 0.5 | – | 1.8 ± 0.3 | 2.3 ± 0.6 | 4.6 ± 0.3 | 4.3 ± 0.4 | 2.6 ± 0.3 | 2.4 ± 0.5 | 3.8 ± 0.3 |
