Table 2 Estimated carbon fluxes (g C m⁻² year⁻¹) (± SE) for riverine mangroves in the Shark River Estuary, Everglades, South Florida, USA. Values include total net primary productivity (NPP_T = litterfall + wood production + root production) and the fate (sensu Bouillon et al.²²) of this organic matter.

NPP allocation (g C m⁻² year⁻¹)	SRS-4	SRS5	SRS-6	Median value	Source
Litterfall	357 ± 33.0	337 ± 23.3	446 ± 32.6	357	Castañeda-Moya et al.⁷³; Danielson et al.⁶²
Wood production	157 ± 18.0	64 ± 2.2	192 ± 12.8	157	Castañeda-Moya et al.⁷³; Danielson et al.⁶²; Rivera-Monroy et al.⁶⁵
Root production	205 ± 28.6	283 ± 40.9	206 ± 41.8	206	Castañeda-Moya et al.¹⁴⁵
NPP_T	719	684	845	720

Fate of NPP_T (g C m^-2 year^-1)					% of NPP_T accounted by the C flux
POC export (tidal and storm surge)	71 ± 5	84 ± 11	205 ± 23	84	10–24	This study
Burial	69 ± 5.8	157 ± 13	123 ± 7.8	123	10–23	Breithaupt et al.⁸¹
Soil CO₂ efflux	nd	nd	351^† (*)	351	42–51	Troxler et al.⁴⁹
DOC export	nd	nd	56^§ (*)	56	7–8	Romigh et al.¹¹⁰
DIC export	&	61–229^&	&	145	7–34	Ho et al.⁸²; Reithmaier et al.⁸³; Volta et al.⁴²
Total		608–964		759	85–128

See “Methods” section for further information about calculations and assumptions. *SE values were no reported in the original source; nd no data.
^†Derived from in situ heterotrophic respiration measured over a range of flooding periods (inundated, partially exposed, and exposed).
^§Obtained using flume measurements.
^&Estimated using a combination of techniques: (a) in situ soil pore water data obtained at the SRS-5 site, (b) discrete sampling in the water column adjacent to the mangrove forest in all study sites and (c) longitudinal flux assessments using geochemical tracers along the Shark River Estuary.

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