Dataset title: Water Quality Data (Grab Samples) from the Shark River Slough, Everglades National Park (FCE LTER), Florida, USA, May 2001 - ongoing Dataset ID: LT_ND_Grahl_002 Research type: Long-term Dataset Creator Name: Dr. Evelyn Gaiser Address: 11200 S.W. 8th Street Miami, Florida 33199 USA Phone: 305-348-6145 Fax: 305-348-4096 Email: gaisere@fiu.edu URL: http://algae.fiu.edu/ Name: Dr. Daniel Childers Address: Arizona State University PO Box 875502 Tempe, AZ 85287 USA Phone: 480-965-2320 Email: dan.childers@asu.edu Name: Rafael Travieso Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-7286 Email: travieso@fiu.edu URL: http://algae.fiu.edu/ Metadata Provider Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Email: fcelter@fiu.edu URL: https://fcelter.fiu.edu Dataset Abstract Water quality samples are being collected using ISCO autosamplers at all Florida Coastal Everglades Long Term Ecological Research (FCE LTER) Program wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). The samples are collected every 3-4 weeks and analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filter immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP and TN. We use these monthly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an ANTEK 9000N analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter or refractometer. In January 2007 a 6 days interval began for SRS1d, SRS2 & SRS3; the ISCOs did not change their sampling scheduled, they kept collecting water sample every 18 hours and switching bottles every three days; once in the lab, the 3 days was turned into 6 days by combining two bottles into 2 liters container. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 1000mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Related Shark River Slough water quality data packages: ISCO extensive water quality (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1072) Rainfall-driven autosampler water quality (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1253) Related Taylor Slough water quality data packages: ISCO extensive water quality from TS/Ph1a, TS/Ph1b (inactive), TS/Ph2, and TS/Ph3 (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1079) ISCO extensive water quality from TS/Ph6a, TS/Ph7a, and TS/Ph8 (inactive) (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1074) Grab sample water quality from TS/Ph1a, TS/Ph1b (inactive), TS/Ph2, and TS/Ph3 (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1080) Grab sample water quality from TS/Ph6a, TS/Ph7a, and TS/Ph8 (inactive) (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1075) Geographic Coverage Study Extent Description The Study Extent of this dataset includes the FCE Shark River Slough research sites within Everglades National Park, South Florida Bounding Coordinates Geographic description: FCE LTER Site SRS1a West bounding coordinate: -80.727 East bounding coordinate: -80.727 North bounding coordinate: 25.761 South bounding coordinate: 25.761 Geographic description: FCE LTER Site SRS1c West bounding coordinate: -80.57 East bounding coordinate: -80.57 North bounding coordinate: 25.75 South bounding coordinate: 25.75 Geographic description: FCE LTER Site SRS1d West bounding coordinate: -80.65 East bounding coordinate: -80.65 North bounding coordinate: 25.75 South bounding coordinate: 25.75 Geographic description: FCE LTER Site SRS2 West bounding coordinate: -80.785 East bounding coordinate: -80.785 North bounding coordinate: 25.55 South bounding coordinate: 25.55 Geographic description: FCE LTER Site SRS3 West bounding coordinate: -80.853 East bounding coordinate: -80.853 North bounding coordinate: 25.468 South bounding coordinate: 25.468 Geographic description: FCE LTER Site SRS4 West bounding coordinate: -80.964 East bounding coordinate: -80.964 North bounding coordinate: 25.41 South bounding coordinate: 25.41 Geographic description: FCE LTER Site SRS5 West bounding coordinate: -81.032 East bounding coordinate: -81.032 North bounding coordinate: 25.377 South bounding coordinate: 25.377 Geographic description: FCE LTER Site SRS6 West bounding coordinate: -81.078 East bounding coordinate: -81.078 North bounding coordinate: 25.365 South bounding coordinate: 25.365 FCE LTER Sites: SRS1a, SRS1c, SRS1d, SRS2, SRS3, SRS4, SRS5, SRS6 Temporal Coverage Start Date: 2001-05-23 End Date: 2023-12-07 Data Table Entity Name: LT_ND_Grahl_002.csv Entity Description: Water Quality Data (Grab Samples) from the Shark River Slough, Everglades National Park, South Florida Object Name: LT_ND_Grahl_002.csv Data Format Number of Header Lines: 1 Attribute Orientation: column Field Delimiter: , Number of Records: Attributes Attribute Name: SITENAME Attribute Label: sitename Attribute Definition: Name of LTER site Storage Type: string Measurement Scale: SRS1a= FCE LTER Site SRS1a SRS1c= FCE LTER Site SRS1c SRS1d= FCE LTER Site SRS1d SRS2= FCE LTER Site SRS2 SRS3= FCE LTER Site SRS3 SRS4= FCE LTER Site SRS4 SRS5= FCE LTER Site SRS5 SRS6= FCE LTER Site SRS6 Missing Value Code: Attribute Name: Date Attribute Label: date Attribute Definition: Collection date Storage Type: datetime Measurement Scale: Missing Value Code: Attribute Name: Time Attribute Label: time Attribute Definition: Collection time Storage Type: datetime Measurement Scale: Missing Value Code: -9999 (Value will never be recorded) Attribute Name: Salinity Attribute Label: salinity Attribute Definition: Composite salinity Storage Type: data Measurement Scale: Units: PSU Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (Value will never be recorded) Attribute Name: TN Attribute Label: total nitrogen Attribute Definition: Composite total nitrogen Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: TP Attribute Label: total phosphorus Attribute Definition: Composite total phosphorus Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: TOC Attribute Label: total organic carbon Attribute Definition: Composite total organic carbon Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: NH4 Attribute Label: ammonium Attribute Definition: ammonium Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NandN Attribute Label: nitrate and nitrite Attribute Definition: nitrate and nitrite Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: NO2 Attribute Label: nitrite Attribute Definition: nitrite Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: SRP Attribute Label: soluble reactive phosphorus Attribute Definition: soluble reactive phosphorus Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: DOC Attribute Label: dissolved organic carbon Attribute Definition: dissolved organic carbon Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (Value will never be recorded) Attribute Name: NO3 Attribute Label: nitrate Attribute Definition: nitrate Storage Type: data Measurement Scale: Units: microMolesPerLiter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Methods Sampling Description Water quality samples are being collected using ISCO autosamplers at all wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). The samples are collected every 3-4 weeks and analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filter immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP and TN. We use these monthly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an Antec TN analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter or refractometer. In January 2007 a 6 days interval began for SRS1d, SRS2 & SRS3; the ISCOs did not change their sampling scheduled, they kept collecting water sample every 18 hours and switching bottles every three days; once in the lab, the 3 days was turned into 6 days by combining two bottles into 2 liters container. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 1000mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Method Step Description Water quality samples are being collected using ISCO autosamplers at all wetland sites (that is, all sites except TS/Ph-9, 10, and 11). The autosamplers contain 24 1L bottles. Water is sampled by programming the autosamplers to take composite samples once every 3 days. These samples are a composite of four 250mL subsamples drawn every 18 hours (a sampling scheme that captures a dawn, noon, dusk, and midnight sample in every three day composite). The samples are collected every 3-4 weeks and analyzed for total phosphorus (TP), total nitrogen (TN), and salinity. When sites are visited to collect these samples, we also collect a grab sample that is immediately put on ice. A portion of these grab samples is filtered through a Whatman GF/F filter immediately upon return to the lab, and the filtered samples are analyzed for inorganic nutrients such as NO2-, NO3-, NH4+, SRP, and DOC. The unfiltered fraction of these grab samples is analyzed for TP and TN. We use these monthly grab samples to generate relationships between TP and SRP, and between TN and NO2- + NO3- + NH4+. Dissolved nutrients are measured using standard rapid flow analyzer (RFA) techniques. TP is analyzed with a modified Solorzano and Sharp (1980) technique. TN is measured with an ANTEK 9000N analyzer, TOC and DOC are quantified on a Shimadzu TOC Analyzer, and salinity is measured with a YSI conductivity meter or refractometer. In January 2007 a 6 days interval began for SRS1d, SRS2 & SRS3; the ISCOs did not change their sampling scheduled, they kept collecting water sample every 18 hours and switching bottles every three days; once in the lab, the 3 days was turned into 6 days by combining two bottles into 2 liters container. In addition to the regular water quality monitoring, we use the rain level actuators at all freshwater sites to trigger water sampling after rain events exceed a given threshold of duration and/or intensity. As currently programmed, when the threshold of = 2.5 cm of rain per hour is passed, the autosampler at that site collects a 1000mL sample 30 minutes after the threshold has been reached. Rain event samples are collected, treated, and analyzed as all other water quality samples. Submission notes: No salinity values for SRS1a from Jun-2001 to Jan-2005; for SRS1c from Jan-2005 to Jan-2006; for SRS1d from Jan-2006 to May-2017; for SRS2 from Jul 2001 to May 2017 and for SRS3 from Jun 2001 to May 2016. No data for August 2001 sampling event for any site (SRS1c and SRS1d were not sites at this time). SRS1c has no data for Mar-2005 or Apr-2005. SRS1d, SRS2, and SRS3 did not have a sample collected for Aug-2006 due to weather; instead, 2 intensive samples were collected in Sep-2006. SRS2 has no data for May-2002, Apr-2004, and May-2005. SRS3 has no data for Apr-2004. SRS4, SRS5, and SRS6 have no data for March-2002 and Aug-2005. No data due to site being dry: SRS1d in May-2009, Apr-2011, May-2011, Jun-2011, Jul-2011, Apr-2012, Apr-2015, May-2015, Jun-2015, Jul-2015 and Aug-2015; SRS2 in May-2009, Apr-2011, May-2011 and Jun-2011. No samples collected in Sep-2017 for SRS4, SRS5 and SRS6. No samples collected in Apr-2020 for SRS1d, SRS2, SRS3, SRS4, SRS5 and SRS6. No sample collected in May-2020 for SRS2. Instrumentation ISCO Model 6700 & ISCO Model 6710 Auto-samplers, Whatman GF/F filters (0.7 um), Nalgene Reusable Inline Filter Holder, Monoject 140cc syringes, Computer Quality Control Data that already meets Lab QA/QC is then evaluated by a Field Technician for patterns and trends, and finally by the PI for patterns and trends. When looking at patterns and trends, the Field Technician and/or PI looks for any values that "spike" or "valley" with an above/below quanity greater than double preceding and post values. Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1073/17/db2ae91d832be2f2d538bad798c35977 Intellectual Rights This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you. Dataset Keywords FCE Florida Coastal Everglades LTER ecological research long-term monitoring water quality inorganic nutrients salinity TN biogeochemistry TP Shark River Slough Everglades National Park total nitrogen total phosphorus water intensive grab sample TOC NH4 N+N NO2 SRP DOC NO3 long term monitoring wetlands water quality inorganic nutrients inorganic nutrients Maintenance 1073.17: Added new data through 2023; updated metadata (including addition of QUDT unit annotations) Dataset Contact Position: Information Manager Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Email: fcelter@fiu.edu URL: https://fcelter.fiu.edu Project permits National Park Service scientific research and collecting permit EVER-2001-SCI-0071 National Park Service scientific research and collecting permit EVER-2002-SCI-0070 National Park Service scientific research and collecting permit EVER-2003-SCI-0067 National Park Service scientific research and collecting permit EVER-2004-SCI-0070 National Park Service scientific research and collecting permit EVER-2005-SCI-0081 National Park Service scientific research and collecting permit EVER-2007-SCI-0065 National Park Service scientific research and collecting permit EVER-2009-SCI-0070 National Park Service scientific research and collecting permit EVER-2011-SCI-0071 National Park Service scientific research and collecting permit EVER-2013-SCI-0058 National Park Service scientific research and collecting permit EVER-2015-SCI-0062 National Park Service scientific research and collecting permit EVER-2017-SCI-0054 National Park Service scientific research and collecting permit EVER-2019-SCI-0055 National Park Service scientific research and collecting permit EVER-2022-SCI-0029 National Park Service scientific research and collecting permit EVER-2023-SCI-0011 Information Management Notes This is a long-term biogeochemistry dataset and subsequent data will be appended.