Using Optical Properties to Quantify Fringe Mangrove Inputs to the Dissolved Organic Matter (DOM) Pool in a Subtropical Estuary

Cawley, Kaelin M.; Yamashita, Youhei; Maie, Nagamitsu; Jaffé, Rudolf

doi:10.1007/s12237-013-9681-5

Cited by 54 publications

(82 citation statements)

References 46 publications

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“…The longitudinal flux of mangrove-derived DOC from Shark River during SharkTREx 1 (0.3 ± 0.2 × 10 5 mol d −1 ; Table 2) is in rough agreement with the estimate of Cawley et al (2013) during the same period (0.2 × 10 5 mol d −1 ), but the value for Harney River (0.6 ± 0.6 × 10 5 mol d −1 ) is lower than their estimate (1.6 × 10 5 mol d −1 ).…”

Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witsupporting

confidence: 75%

“…4). For both experiments, DOC concentrations followed a non-conservative pattern (see also Cawley et al, 2013), but this trend was less apparent during SharkTREx 1 compared to SharkTREx 2 (Fig. 4).…”

Section: Distribution Patterns and Carbon Inventoriesmentioning

confidence: 82%

“…Cawley et al (2013), estimated a mangrove contribution to DOC flux of 3 ± 10 % for Shark River and 21 ± 8 % for the Harney River during November 2010, the same time period as SharkTREx 1. DOC measurements were not made in Harney River as part of SharkTREx 1.…”

Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witmentioning

confidence: 91%

“…DOC measurements were not made in Harney River as part of SharkTREx 1. However, using the November 2010 DOC data from Harney River collected by Cawley et al (2013) for inventory calculations, along with residence time derived from the tracers, a mangrove contribution of 19 % to the total DOC longitudinal flux to the Gulf of Mexico was obtained.…”

Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witmentioning

confidence: 99%

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Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

Ferrón

Engel

et al. 2017

Biogeosciences

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Abstract. The Shark and Harney rivers, located on the southwest coast of Florida, USA, originate in the freshwater, karstic marshes of the Everglades and flow through the largest contiguous mangrove forest in North America. In November 2010 and 2011, dissolved carbon source-sink dynamics was examined in these rivers during SF 6 tracer release experiments. Approximately 80 % of the total dissolved carbon flux out of the Shark and Harney rivers during these experiments was in the form of inorganic carbon, either via air-water CO 2 exchange or longitudinal flux of dissolved inorganic carbon (DIC) to the coastal ocean. Between 42 and 48 % of the total mangrove-derived DIC flux into the rivers was emitted to the atmosphere, with the remaining being discharged to the coastal ocean. Dissolved organic carbon (DOC) represented ca. 10 % of the total mangrove-derived dissolved carbon flux from the forests to the rivers. The sum of mangrove-derived DIC and DOC export from the forest to these rivers was estimated to be at least 18.9 to 24.5 mmol m −2 d −1 , a rate lower than other independent estimates from Shark River and from other mangrove forests.Results from these experiments also suggest that in Shark and Harney rivers, mangrove contribution to the estuarine flux of dissolved carbon to the ocean is less than 10 %.

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Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witsupporting

confidence: 75%

Section: Distribution Patterns and Carbon Inventoriesmentioning

confidence: 82%

Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witmentioning

confidence: 91%

Section: Longitudinal Fluxes To the Gulf Of Mexico And Comparison Witmentioning

confidence: 99%

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Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

Ferrón

Engel

et al. 2017

Biogeosciences

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“…While seagrass communities were found to be significant contributors to the DOC pool based on C release through exudation during primary productivity, these studies determined that release of DOC through leaching from senescent seagrass also contributes to the DOC pool. The DOM dynamics in FCE estuaries (e.g., Cawley et al 2013) also were compared to those in wetland-influenced coastal rivers in Japan and Malaysia (Watanabe et al 2012. These crosscontinental studies suggest that wetland-influenced coastal rivers can have highly variable DOC concentration and composition in the low salinity zone due to differences in hydrology and geomorphology, and the associated interplay between soil and primary productivity related DOC sources .…”

Section: What Shapes Food Webs In Estuarine Ecosystems With Poor Qualmentioning

confidence: 99%

New perspectives on an iconic landscape from comparative international long‐term ecological research

et al. 2015

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Abstract. Iconic ecosystems like the Florida Coastal Everglades can serve as sentinels of environmental change from local to global scales. This characteristic can help inform general theory about how and why ecosystems transform, particularly if distinctive ecosystem properties are studied over long time scales and compared to those of similar ecosystems elsewhere. Here we review the ways in which long-term, comparative, international research has provided perspectives on iconic features of the Everglades that have, in turn, informed general ecosystem paradigms. Studies in other comparable wetlands from the Caribbean to Australia have shed light on distinctive and puzzling aspects such as the ''upside-down estuary'' and ''productivity paradox'' for which the Everglades is known. These studies suggest that coastal wetlands on carbonate (karstic) platforms have: (1) hydrological and biogeochemical properties that reflect ''hidden'' groundwater sources of water and nutrients, (2) very productive, mat-forming algal communities that present a low-quality food to aquatic consumers that encourages (3) highly diversified feeding strategies within and among populations, and (4) extensive and productive seagrass meadows and mangrove forests that promote strong cultural dependencies associated with the ecosystem services they provide. The contribution of international research to each of these general ecological topics is discussed with a particular goal of encouraging informed decision-making in threatened wetlands across the globe.

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Air‐water gas exchange and CO₂ flux in a mangrove‐dominated estuary

Ferrón

Engel

et al. 2014

Geophysical Research Letters

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[1] Mangrove forests are highly productive ecosystems, but the fate of mangrove-derived carbon remains uncertain. Part of that uncertainty stems from the fact that gas transfer velocities in mangrove-surrounded waters are not well determined, leading to uncertainty in air-water CO 2 fluxes. Two SF 6 tracer release experiments were conducted to determine gas transfer velocities (k(600) = 8.3 ± 0.4 and 8.1 ± 0.6 cm h À1 ), along with simultaneous measurements of pCO 2 to determine the air-water CO 2 fluxes from Shark River, Florida (232.11 ± 23.69 and 171.13 ± 20.28 mmol C m À2 d À1), an estuary within the largest contiguous mangrove forest in North America. The gas transfer velocity results are consistent with turbulent kinetic energy dissipation measurements, indicating a higher rate of turbulence and gas exchange than predicted by commonly used wind speed/gas exchange parameterizations. The results have important implications for carbon fluxes in mangrove ecosystems.

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Using Optical Properties to Quantify Fringe Mangrove Inputs to the Dissolved Organic Matter (DOM) Pool in a Subtropical Estuary

Cited by 54 publications

References 46 publications

Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

New perspectives on an iconic landscape from comparative international long‐term ecological research

Air‐water gas exchange and CO₂ flux in a mangrove‐dominated estuary

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Using Optical Properties to Quantify Fringe Mangrove Inputs to the Dissolved Organic Matter (DOM) Pool in a Subtropical Estuary

Cited by 54 publications

References 46 publications

Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

Dissolved carbon biogeochemistry and export in mangrove-dominated rivers of the Florida Everglades

New perspectives on an iconic landscape from comparative international long‐term ecological research

Air‐water gas exchange and CO2 flux in a mangrove‐dominated estuary

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Air‐water gas exchange and CO₂ flux in a mangrove‐dominated estuary