Factors Controlling the Flux of Particulate Organic Carbon from Estuarine Wetlands

Odum, William E.; Fisher, John S.; Pickral, James C.

doi:10.1007/978-1-4615-9146-7_5

Cited by 74 publications

(40 citation statements)

References 12 publications

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“…Nevertheless, estuarine waters are a source of CO 2 to the atmosphere, globally (Cai, 2011). (10) Coastal marshes both store and export "blue carbon" (Odum et al, 1979;Dittmar et al, 2001;Moore et al, 2011). Marshes and wetlands are suggested to have an equivalent flux of CO 2 to the atmosphere as rivers, globally (Wehrli, 2013).…”

Section: Hydrologic and Biogeochemical Linkagesmentioning

confidence: 99%

“…Vascular plant derived OM stored in fjord sediments is generally fresher and has a less degraded signature compared to OM stored in river-dominated shelf sediments (Goñi et al, 1998;Cui et al, 2016b). Regions with extensive coastal marshes, on the other hand, can export large amounts of vascular plant-derived OM originating from mangroves and grasses (Figure 1.10; Odum et al, 1979;Twilley, 1985). Fjords are further suspected to be important sinks of CO 2 with respect to the global carbon cycle due to high rates of primary production and burial of autochthnous OM (Chmura et al, 2003).…”

Section: Estuarine Om Transport Burial and Transformationmentioning

confidence: 99%

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Where Carbon Goes When Water Flows: Carbon Cycling across the Aquatic Continuum

et al. 2017

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The purpose of this review is to highlight progress in unraveling carbon cycling dynamics across the continuum of landscapes, inland waters, coastal oceans, and the atmosphere. Earth systems are intimately interconnected, yet most biogeochemical studies focus on specific components in isolation. The movement of water drives the carbon cycle, and, as such, inland waters provide a critical intersection between terrestrial and marine biospheres. Inland, estuarine, and coastal waters are well studied in regions near centers of human population in the Northern hemisphere. However, many of the world's large river systems and their marine receiving waters remain poorly characterized, particularly in the tropics, which contribute to a disproportionately large fraction of the transformation of terrestrial organic matter to carbon dioxide, and the Arctic, where positive feedback mechanisms are likely to amplify global climate change. There are large gaps in current coverage of environmental observations along the aquatic continuum. For example, tidally-influenced reaches of major rivers and near-shore coastal regions around river plumes are often left out of carbon budgets due to a combination of methodological constraints and poor data coverage. We suggest that closing these gaps could potentially alter global estimates of CO 2 outgassing from surface waters to the atmosphere by several-fold. Finally, in order to identify and constrain/embrace uncertainties in global carbon budget estimations it is important that we further adopt statistical and modeling approaches that have become well-established in the fields of oceanography and paleoclimatology, for example.

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Section: Hydrologic and Biogeochemical Linkagesmentioning

confidence: 99%

Section: Estuarine Om Transport Burial and Transformationmentioning

confidence: 99%

Where Carbon Goes When Water Flows: Carbon Cycling across the Aquatic Continuum

et al. 2017

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“…Resale or republication not permitted without written consent of the publisher water areas (Dame & Lefeuvre 1994), the geomorphology of the wetlands (Odum et al 1979), the tidal regime (Lee 1990(Lee , 1995, the activities of macrofauna such as crabs (Robertson 1986, Lee 1989, 1997, and general hydrodynamics of the system (Dame et al 1986, Wolanski 1995. In general, however, tropical mangrove ecosystems are expected to be net exporters, although the magnitude as well as spatial extent of export appears to be more limited than previously assumed (Lee 1995).…”

Section: Introductionmentioning

confidence: 99%

Carbon dynamics of Deep Bay, eastern Pearl River estuary, China. II: Trophic relationship based on carbon- and nitrogen-stable isotopes

Lee¹

2000

Mar. Ecol. Prog. Ser.

103

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“…While it is clear from the data that A. rostrata basal diet stems from many available sources (e.g., estuarine, marine, brackish/invasive species), strong evidence exists for A. rostrata support from salt marsh primary production in the form of salt marsh grasses and/or POM. The relative contribution of salt marsh macrophyte detritus to POM can be quite variable depending on the coastal geomorphology of the system, recent meteorological events and the size and proximity of vegetated marsh habitat (Odum et al 1979;Roman and Daiber 1989;Sullivan and Moncreiff 1990;McClelland and Valiela 1998). Due to considerable evidence for S. alterniflora detritus across salt marsh dominated estuaries of the eastern USA (Teal 1962;Odum and de la Cruz 1967;Roman and Daiber 1989), it is reasonable to assume that assimilation of POM by A. rostrata and its prey represents, in part, use of salt marsh production.…”

Section: Discussionmentioning

confidence: 99%

Rethinking the Freshwater Eel: Salt Marsh Trophic Support of the American Eel, Anguilla rostrata

Eberhardt

Burdick

Dionne

et al. 2015

Estuaries and Coasts

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Despite the fact that Anguilla rostrata (American eel) are frequently captured in salt marshes, their role in salt marsh food webs and the influence of human impacts, such as tidal restrictions, on this role remains unclear. To better understand salt marsh trophic support of A. rostrata, eels were collected from tidally restricted and unrestricted salt marsh creeks within three New England estuaries. Gut contents were examined, and eel muscle tissue was analyzed for carbon and nitrogen stable isotope values and entered into MixSir mixing models to understand if salt marsh food sources are important contributors to eel diet. Data suggest that eel prey rely heavily on salt marsh organic matter and eels utilize salt marsh secondary production as an energetic resource over time, and thus can be considered salt marsh residents. Gut contents indicate that A. rostrata function as top predators, feeding primarily on secondary consumers including other fish species, crustaceans, and polychaetes. Higher A. rostrata trophic position measured upstream of reference creeks suggests that severe tidal restrictions may result in altered food webs, but it is not clear how this impacts the overall fitness of A. rostrata populations in New England salt marshes.

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Factors Controlling the Flux of Particulate Organic Carbon from Estuarine Wetlands

Cited by 74 publications

References 12 publications

Where Carbon Goes When Water Flows: Carbon Cycling across the Aquatic Continuum

Where Carbon Goes When Water Flows: Carbon Cycling across the Aquatic Continuum

Carbon dynamics of Deep Bay, eastern Pearl River estuary, China. II: Trophic relationship based on carbon- and nitrogen-stable isotopes

Rethinking the Freshwater Eel: Salt Marsh Trophic Support of the American Eel, Anguilla rostrata

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