Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South Florida for June, July, August and November 2003
At a Glance
Authors: Rene Price
Time period: 2003-06-20 to 2003-11-25
Package id: knb-lter-fce.1142.2
Dataset id: PHY_Price_001
Price, R.. 2006. Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South Florida for June, July, August and November 2003. Environmental Data Initiative. https://doi.org/10.6073/pasta/2b42a17496155b8a7ce2191ae90e193b. Dataset accessed 2024-09-08.
Geographic Coverage
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Dataset Creator(s)
- Name: Dr Rene Price
- Position: Principal Investigator
- Organization: Florida Coastal Everglades LTER Program
- Address: 11200 SW 8th St. SERC OE-148
Miami, FL 33199 USA - Phone: 305-348-3119
- Fax: 305-348-3877
- Email: pricer@fiu.edu
- URL: www.fiu.edu/~pricer
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Dataset AbstractSeawater intrusion into a coastal aquifer mixes with the discharging fresh water to form a zone of mixed composition. This mixing zone is considered to be geochemical important in a carbonate aquifer as an area of enhanced carbonate mineral dissolution and,or precipitation. Ion exchange reactions are also common within the mixing zone as the dominant cation in seawater, sodium, replaces other ions adsorbed to the aquifer matrix. Phosphorus has a strong affinity for adsorption to calcium carbonate minerals. Both the dissolution of calcium carbonate minerals as well as ion exchange reactions have the potential to release phosphorus from the aquifer matrix to the groundwater. Discharge of this phosphorus-laden groundwater, as induced by the fresh/saline water interface, may then be an additional source of phosphorus to the overlying coastal environments. Both surface water and groundwater were collected across the seawater intrusion zone of the coastal Everglades in south Florida during the summer of 2003. Hydrogen sulfide was released from the groundwater wells during sampling, indicating the groundwater was most likely anoxic. In order to reduce the potential exposure of the groundwater to oxygen during sampling, groundwater samples were collected in the following manner. Groundwater wells were first purged of at least three well volumes prior to sampling. Water samples were then collected using a submersible pump with a 16-gauge needle fitted at the end of the discharge hose. The needle was pushed through a rubber stopper covering an acid-washed vacutainer that was first flushed with nitrogen gas to remove and oxygen, then evacuated with a vacuum pump to establish a negative pressure within the vacutainer. Water samples were stored on ice and transported to the laboratory. Samples were processed for total phosphorus using colorimetery following dry-oxidation/acid hydroloysis methods within 1 to 5 days following sample collection. Salinity of the groundwater and surface water was determined at the time of sampling using an Orion S-C-T meter. Total phosphorus concentrations in 11 groundwater wells ranged from 0.5 to 2.3 uM (16 to 73.6 ug/L-P). Concentrations of total phosphorus in the overlying surface water were consistently lower and ranged from 0.16 to 0.45 uM (5.1 to 14.4 ug/L-P). There was a strong positive correlation between total phosphorus concentrations in the groundwater with salinity (R2=0.6). The results of this investigation indicate enhanced phosphorus concentrations within mixing zone groundwaters underlying the southern Everglades. These concentrations exceed the expected values predicted by conservative mixing of local fresh groundwater and intruding seawater, which both have TP less than 1 uM.
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Geographic CoverageStudy Extent Description
The Study Extent of this dataset includes the FCE Shark River Slough research sites within Everglades National Park, South Florida
Bounding Coordinates
Data were collected in the Shark River Slough, within Everglades National Park, South Florida
N: 25.761, S: 25.201, E: -80.648, W: -81.164
Florida Coastal Everglades LTER Study Area: South Florida, Everglades National Park, and Florida Bay
N: 25.761, S: 24.913, E: -80.490, W: -81.078
Geographic DescriptionBounding CoordinatesCANEPATCH GWN: 25.42, S: 25.42, E: -80.94, W: -80.94CANEPATCH SWN: 25.42, S: 25.42, E: -80.94, W: -80.94CH1 GWN: 25.73, S: 25.73, E: -81.16, W: -81.16CH1 SWN: 25.73, S: 25.73, E: -81.16, W: -81.16E-130 DEEPN: 25.33, S: 25.33, E: -80.65, W: -80.65E-130 SHALLOWN: 25.33, S: 25.33, E: -80.65, W: -80.65E-130 SWN: 25.33, S: 25.33, E: -80.65, W: -80.65E-146 DEEPN: 25.25, S: 25.25, E: -80.67, W: -80.67E-146 SHALLOWN: 25.25, S: 25.25, E: -80.67, W: -80.67E-146 SWN: 25.25, S: 25.25, E: -80.67, W: -80.67E-146-27 GWN: 25.25, S: 25.25, E: -80.67, W: -80.67G-3302AN: 25.76, S: 25.76, E: -80.70, W: -80.70LO1 GWN: 25.61, S: 25.61, E: -81.03, W: -81.03LO1 SWN: 25.61, S: 25.61, E: -81.03, W: -81.03RB-1 GWN: 25.46, S: 25.46, E: -80.88, W: -80.88RB-1 SWN: 25.46, S: 25.46, E: -80.88, W: -80.88SH-1 GWN: 25.49, S: 25.49, E: -80.86, W: -80.86SH-1 SWN: 25.49, S: 25.49, E: -80.86, W: -80.86TARPON BAY GWN: 25.39, S: 25.39, E: -81.01, W: -81.01TARPON BAY SWN: 25.39, S: 25.39, E: -81.01, W: -81.01UPPER TAYLOR RIVERN: 25.21, S: 25.21, E: -80.65, W: -80.65UTR DEEP GWN: 25.21, S: 25.21, E: -80.65, W: -80.65UTR SHALLOW GWN: 25.21, S: 25.21, E: -80.65, W: -80.65
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Temporal CoverageStart Date: 2003-06-20
End Date: 2003-11-25
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Attributes
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Data Table: Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South Florida Attribute Name:SITENAMEAttribute Label:sitenameAttribute Definition:Name of LTER siteStorage Type:textMeasurement Scale:Name of LTER siteMissing Value Code:Attribute Name:DateAttribute Label:dateAttribute Definition:Collection dateStorage Type:datetimeMeasurement Scale:Missing Value Code:Attribute Name:Water_TypeAttribute Label:typeAttribute Definition:Water TypeStorage Type:textMeasurement Scale:Water TypeMissing Value Code:Attribute Name:Sampling_DepthAttribute Label:depthAttribute Definition:Sampling DepthStorage Type:dataMeasurement Scale:Units: meterPrecision: 0.1
Number Type: realMissing Value Code:-9999.0 (Value will never be recorded )Attribute Name:TemperatureAttribute Label:temperatureAttribute Definition:Water TemperatureStorage Type:dataMeasurement Scale:Units: celsiusPrecision: 0.1
Number Type: realMissing Value Code:-9999.0 (Value will never be recorded )Attribute Name:pHAttribute Label:pHAttribute Definition:Water pHStorage Type:dataMeasurement Scale:Units: dimensionlessPrecision: 0.01
Number Type: realMissing Value Code:-9999.00 (Value will never be recorded )Attribute Name:SalinityAttribute Label:salinityAttribute Definition:Water SalinityStorage Type:dataMeasurement Scale:Units: PSUPrecision: 0.1
Number Type: realMissing Value Code:-9999.0 (Value will never be recorded )Attribute Name:TPAttribute Label:total phosphorusAttribute Definition:total phosphorusStorage Type:dataMeasurement Scale:Units: microMolesPerLiterPrecision: 0.01
Number Type: realMissing Value Code:-9999.00 (Value will never be recorded )
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Data Table: Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South Florida
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MethodsSampling Description
Prior to sampling, all wells were purged of at least three well volumes. Surface water was collected either adjacent to the groundwater wells or from the canals. To reduce the exposure of anoxic groundwater to oxygen during sampling, groundwater samples were collected directly into acid-washed, evacuated blood collection tubes that were first flushed with nitrogen gas. Samples were processed for TP using colorimetery following dry-oxidation/acid hydrolysis methods (Solorzano & Sharp, 1980) within 1 to 5 days of sample collection. The pH, specific conductance and/or salinity, and temperature were recorded at the time of sample collection using an Orion pH, and S/C/T meter, respectively.
Method Step
Description
Prior to sampling, all wells were purged of at least three well volumes. Surface water was collected either adjacent to the groundwater wells or from the canals. To reduce the exposure of anoxic groundwater to oxygen during sampling, groundwater samples were collected directly into acid-washed, evacuated blood collection tubes that were first flushed with nitrogen gas. Samples were processed for TP using colorimetery following dry-oxidation/acid hydrolysis methods (Solorzano & Sharp, 1980) within 1 to 5 days of sample collection. The pH, specific conductance and/or salinity, and temperature were recorded at the time of sample collection using an Orion pH, and S/C/T meter, respectively.
Citation
Solarzano, L. , J. H. Sharp. 1905-06-02. Determination of total dissolved phosphorus and particulate phosphorus in natural waters.. Limnology and Oceanography, 25: 754-758.
Instrumentation
Shimadzu UV/Vis Scanning SpectrophotometerOrion model S/C/T meterQuality Control
Data QA/QC involves running a standard curve and checking for linearity, then running the samples in duplicate.
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Distribution and Intellectual RightsOnline distribution
http://fcelter.fiu.edu/perl/public_data_download.pl?datasetid=PHY_Price_001.txt
Data Submission Date: 2006-01-02
Intellectual Rights
These data are classified as 'Type I' whereby original FCE LTER experimental data collected by individual FCE researchers are available for scientific purposes 2 years after collection. Maximum lock period = 2 years. All publications based on this dataset must cite the data Contributor, the Florida Coastal Everglades Long-Term Ecological Research (LTER) Program and that this material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreements #DBI-0620409, and #DEB-9910514. Additionally, two copies of the manuscript must be submitted to the Florida Coastal Everglades LTER Program Office, LTER Program Manager, Florida International University, Southeast Environmental Research Center, OE 148, University Park, Miami, Florida 33199. For a complete description of the FCE LTER Data Distribution and Data User Agreement, please go to FCE Data Management Policy at http://fcelter.fiu.edu/data/DataMgmt.pdf and LTER Network Data Access Policy at http://fcelter.fiu.edu/data/core/data_user_agreement/distribution_policy.html.
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KeywordsFCE, Florida Coastal Everglades LTER, ecological research, long-term monitoring, water, groundwater, phosphorus, salinity, pH, total phosphorus, processes, temperature, specific conductivity, surface water, hydrology, Shark River Slough
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Dataset Contact
- Position: Information Manager
- Organization: LTER Network Office
- Address: UNM Biology Department, MSC03-2020
1 University of New Mexico
Albuquerque, NM 87131-0001 USA - Phone: 505 277-2535
- Fax: 505 277-2541
- Email: tech-support@lternet.edu
- URL: http://www.lternet.edu
- Name: Rene Price
- Position: 11200 SW 8th St. SERC OE-148
- Organization: Florida International University
- Address: Miami
FL, 33199 USA 305-348-3119 - Phone: 305-348-3877
- Fax: pricer@fiu.edu
- Email: PI
- URL: www.fiu.edu/~pricer
- Position: Information Manager
- Organization: Florida Coastal Everglades LTER Program
- Address: Florida International University
University Park
OE 148
Miami, FL 33199 USA - Phone: 305-348-6054
- Fax: 305-348-4096
- Email: fcelter@fiu.edu
- URL: http://fcelter.fiu.edu
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Data Table and FormatData Table: Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South FloridaEntity Name:PHY_Price_001Entity Description:Groundwater and surface water phosphorus concentrations, Everglades National Park (FCE), South FloridaObject Name:PHY_Price_001Number of Header Lines:1Attribute Orientation:columnField Delimiter:,Number of Records:23
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Metadata Provider
- Organization: Florida Coastal Everglades LTER Program
- Address: Florida International University
University Park
OE 148
Miami, FL 33199 USA - Phone: 305-348-6054
- Email: fcelter@fiu.edu
- URL: http://fcelter.fiu.edu