Factors affecting spatial and temporal variability in material exchange between the Southern Everglades wetlands and Florida Bay (USA)

Sutula, Martha; Perez, Brian C.; Reyes, Enrique; Childers, Daniel L.; Davis, Steve; Day, John W.; Rudnick, David T.; Sklar, Fred H.

doi:10.1016/s0272-7714(02)00403-1

Cited by 73 publications

(37 citation statements)

References 65 publications

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“…Water residence times in these mangrove wetlands are considerably longer during this time (Jaffe et al 2001;Sutula et al 2003). We attribute high [TP] in the mangrove zone and the positive salinity : TP relationship seen for sites TS/ Ph-6 and -7 to a combination of the influx of P-rich carbonate particles from Florida Bay (Sutula et al 2003) and to internal biogeochemical processing during these periods of longer residence time. We do not attribute this pattern to an upside down Gulf of Mexico supply of P. Davis et al (2001a,b) found that the mangroves in this region took up TP, particularly during the higher salinity dry season.…”

Section: Discussionmentioning

confidence: 81%

“…Freshwater Everglades wetlands are characterized by very low suspended sediment concentrations, though (Noe et al 2001). Suspended sediment content is typically low at our estuarine sites as well (Boyer et al 1997;Sutula et al 2003). As such, TN and TP in most of our water samples were predominantly comprised of dissolved inorganic nutrients and dissolved organic N or P .…”

Section: Discussionmentioning

confidence: 84%

“…Everglades estuaries Sutula et al 2003). Rudnick et al (1999) calculated annual nutrient loads (1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996) along three transects in Everglades National Park that ran from canal inputs to the Gulf of Mexico, effectively coupling freshwater and estuarine systems.…”

Section: And In Nutrients In Everglades Estuariesmentioning

confidence: 99%

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Relating precipitation and water management to nutrient concentrations in the oligotrophic “upside‐down” estuaries of the Florida Everglades

Childers

Boyer

Davis

et al. 2006

Limnology & Oceanography

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166

142

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We present 8 yr of long-term water quality, climatological, and water management data for 17 locations in Everglades National Park, Florida. Total phosphorus (P) concentration data from freshwater sites (typically Ͻ0.25 mol L Ϫ1 , or 8 g L Ϫ1 ) indicate the oligotrophic, P-limited nature of this large freshwater-estuarine landscape. Total P concentrations at estuarine sites near the Gulf of Mexico (average ഠ0.5 mol L Ϫ1 ) demonstrate the marine source for this limiting nutrient. This ''upside down'' phenomenon, with the limiting nutrient supplied by the ocean and not the land, is a defining characteristic of the Everglade landscape. We present a conceptual model of how the seasonality of precipitation and the management of canal water inputs control the marine P supply, and we hypothesize that seasonal variability in water residence time controls water quality through internal biogeochemical processing. Low freshwater inflows during the dry season increase estuarine residence times, enabling local processes to control nutrient availability and water quality. El Niño-Southern Oscillation (ENSO) events tend to mute the seasonality of rainfall without altering total annual precipitation inputs. The Niño3 ENSO index (which indicates an ENSO event when positive and a La Niña event when negative) was positively correlated with both annual rainfall and the ratio of dry season to wet season precipitation. This ENSO-driven disruption in seasonal rainfall patterns affected salinity patterns and tended to reduce marine inputs of P to Everglades estuaries. ENSO events also decreased dry season residence times, reducing the importance of estuarine nutrient processing. The combination of variable water management activities and interannual differences in precipitation patterns has a strong influence on nutrient and salinity patterns in Everglades estuaries.Nutrient enrichment and cultural eutrophication affect virtually all aquatic systems to some degree (Carpenter et al.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 84%

Section: And In Nutrients In Everglades Estuariesmentioning

confidence: 99%

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Relating precipitation and water management to nutrient concentrations in the oligotrophic “upside‐down” estuaries of the Florida Everglades

Childers

Boyer

Davis

et al. 2006

Limnology & Oceanography

Self Cite

166

142

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“…For specific mangrove forest types, it has been shown that much of 16 the variation in export can be attributed to tidal amplitude, inundation frequency, and fauna among other factors (Twilley, 1985;Robertson, 1986;Lee, 1995;Dittmar & Lara, 2001b;Feller, 18 2002 Sutula et al, 2003). This coastal region is of particular interest where landscape-scale hydrologic restoration efforts are underway.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2006

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Short term (daily) and seasonal variations in concentration and flux of dissolved organic carbon 2 (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 4 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 6 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 8 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 10 (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 12 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-14 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 16 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 18 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 y -1. The seasonal pattern in our 20 flux results indicates that DOC flux from this mangrove forest may be governed by both freshwater discharge and tidal range.

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“…Since we used fresh leaf material, an accurate means of estimating initial dry weight was needed in order to determine mass loss and to normalize the quantity of total phosphorus (TP) 18 and total organic carbon (TOC) released from each leaf. To accomplish this, we collected an additional batch of newly-senesced leaves (n = 75) from the same site and at the same time to 20 develop a linear regression model that could be used to estimate initial dry mass for each leaf from its initial fresh mass.…”

Section: (2003a) 16mentioning

confidence: 99%

Importance of water source in controlling leaf leaching losses in a dwarf red mangrove (Rhizophora mangle L.) wetland

Davis

Childers

2007

Estuarine, Coastal and Shelf Science

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Factors affecting spatial and temporal variability in material exchange between the Southern Everglades wetlands and Florida Bay (USA)

Cited by 73 publications

References 65 publications

Relating precipitation and water management to nutrient concentrations in the oligotrophic “upside‐down” estuaries of the Florida Everglades

Relating precipitation and water management to nutrient concentrations in the oligotrophic “upside‐down” estuaries of the Florida Everglades

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

Importance of water source in controlling leaf leaching losses in a dwarf red mangrove (Rhizophora mangle L.) wetland

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