Flux of organic carbon in a riverine mangrove wetland in the Florida Coastal Everglades
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Material Information

Title:
Flux of organic carbon in a riverine mangrove wetland in the Florida Coastal Everglades
Series Title:
Hydrobiologia
Creator:
Romigh, Melissa M.
Davis III, Stephen E.
Rivera-Monroy, Victor H.
Twilley, Robert R.
Publisher:
Springer
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Water -- Organic compound content -- Florida -- Everglades National Park
Mangrove forests -- Florida -- Everglades National Park
Wetlands -- Florida -- Everglades National Park
Genre:
article
serial ( sobekcm )
Spatial Coverage:
Everglades National Park (Fla.)
Coordinates:
25.286631 x -80.898662

Notes

Abstract:
Short-term (daily) and seasonal variations in concentration and flux of dissolved organic carbon (DOC) were examined over 15 tidal cycles in a riverine mangrove wetland along Shark River, Florida in 2003. Due to the influence of seasonal rainfall and wind patterns on Shark River’s hydrology, samplings were made to include wet, dry and transitional (Norte) seasons. We used a flume extending from a tidal creek to a basin forest to measure vertical (vegetated soil/water column) and horizontal (mangrove forest/tidal creek) flux of DOC. We found significant (p < 0.05) variations in surface water temperature, salinity, conductivity, pH and mean concentration of DOC with season. Water temperature and salinity followed seasonal patterns of air temperature and rainfall, while mean DOC concentration was highest during the dry season (May), followed by the wet (October) and ‘Norte’ (December) seasons. This pattern of DOC concentration may be due to a combination of litter production and inundation pattern of the wetland. In contrast to daily (between tides) variation in DOC flux between the mangrove forest and tidal creek, daily variations of mean water quality were not significant. However, within-tide variation of DOC flux, dissolved oxygen content and salinity was observed. This indicated that the length of inundation and water source (freshwater vs. saltwater) variation across tidal cycles influenced water quality and DOC flux in the water column. Net DOC export was measured in October and December, suggesting the mangrove forest was a source of DOC to the adjacent tidal creek during these periods. Net annual export of DOC from the fringe mangrove to both the tidal creek and basin mangrove forest was 56 g C m−2 year−1. The seasonal pattern in our flux results indicates that DOC flux from this mangrove forest may be governed by both freshwater discharge and tidal range.
General Note:
This paper has not been submitted elsewhere in identical or similar form, nor will it be during the first three months after its submission to Hydrobiologia.

Record Information

Source Institution:
Florida International University
Rights Management:
Please contact the owning institution for licensing and permissions. It is the users responsibility to ensure use does not violate any third party rights.
Resource Identifier:
FI14082566