Tidal marshes as a source of optically and chemically distinctive colored dissolved organic matter in the Chesapeake Bay

@article{Tzortziou2008TidalMA,
  title={Tidal marshes as a source of optically and chemically distinctive colored dissolved organic matter in the Chesapeake Bay},
  author={Maria Tzortziou and Patrick J. Neale and Christopher L. Osburn and James Patrick Megonigal and Nagamitsu Maie and Rudolf Jaff{\'e}},
  journal={Limnology and Oceanography},
  year={2008},
  volume={53},
  pages={148-159}
}
The role of tidal marshes as a source of dissolved organic carbon (DOC) and colored dissolved organic matter (CDOM) for adjacent estuarine waters was studied in the Rhode River subestuary of the Chesapeake Bay. Water in a tidal creek draining brackish, high-elevation marshes was sampled every hour during several semidiurnal tidal cycles in order to examine the tidal exchange of dissolved organic matter (DOM). Water leaving the marsh during ebbing tide was consistently enriched in DOC compared… Expand

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References

SHOWING 1-10 OF 62 REFERENCES
Photobleaching of Dissolved Organic Material from a Tidal Marsh‐Estuarine System of the Chesapeake Bay †
TLDR
The results illustrate that solar exposure can cause either an increase or a decrease in the CDOM absorption spectral slope, SCDOM, depending on the spectral quality of irradiation and, thus, on the parameters (e.g. atmospheric composition, concentration of UV‐absorbing water constituents) that affect the spectral characteristics of the light to which CDOM is exposed. Expand
Nutrient flux in the Rhode River: Tidal exchange of nutrients by brackish marshes
Abstract Tidal exchanges of nitrogen, phosphorus, and organic carbon by a high and a low elevation marsh in the Rhode River estuary were measured throughout the year. Both marshes tended to importExpand
High-resolution measurements of chromophoric dissolved organic matter (CDOM) in the Neponset River Estuary, Boston Harbor, MA
Abstract The Neponset River Estuary is a small, tidally dominated urban system that is fringed with Spartina spp. salt marsh and drains the second largest river into Boston Harbor, MA.Expand
Continuous automated sampling of tidal exchanges of nutrients by Brackish Marshes
Abstract Automated instruments were used to measure tidal exchanges of materials at two brackish marshes of differing elevation. The instruments, located at the mouths of the tidal creeks drainingExpand
Flux of particulate matter in the tidal marshes and subtidal shallows of the Rhode River estuary
There was a net influx of suspended particulate matter to the uppermost part of the Rhode River estuary during the several years of this study. Most of the influx was due to episodic discharges ofExpand
Colored dissolved organic matter and dissolved organic carbon exclusion from lake ice: Implications for irradiance transmission and carbon cycling
Thick ice cover is a feature of cold-temperate, polar, and alpine lakes and rivers throughout much of the year. Our observations from Canadian lakes and rivers across the latitudinal gradient 46‐808NExpand
Spatial, geomorphological, and seasonal variability of CDOM in estuaries of the Florida Coastal Everglades
This paper demonstrates the usefulness of fluorescence techniques for long-term monitoring and assessment of the dynamics (sources, transport and fate) of chromophoric dissolved organic matter (CDOM)Expand
Early diagenesis of plant-derived dissolved organic matter along a wetland, mangrove, estuary ecotone
We studied the role of photochemical and microbial processes in contributing to the transformation of dissolved organic matter (DOM) derived from various plants that dominate the Florida Everglades.Expand
The distribution and stable carbon isotopic composition of dissolved organic carbon in estuaries
The distributions of dissolved organic carbon (DOC) and the natural carbon isotope ratio of DOC (DO13C) in estuaries reflect the predominant sources and sinks of organic matter from bothExpand
Distribution and cycling of terrigenous dissolved organic matter in the ocean
Terrigenous dissolved organic matter (DOM) is continuously discharged by rivers into the ocean, yet its distribution and reactivity within ocean basins remain poorly defined aspects of the globalExpand
...
1
2
3
4
5
...