Dataset title: Field survey of mangrove regeneration, porewater variables, and light in mangrove forests in Everglades National Park, Florida, USA, July 2020 - August 2022 Dataset ID: doi:10.6073/pasta/42e23cc42a3a463dc3ac6a1cda9b4819 Dataset Creator Name: Veronica Restrepo Email: vrest011@fiu.edu Name: Edward Castañeda-Moya Organization: Miami-Dade County Department of Regulatory and Economic Resources, Division of Environmental Resources Management (DERM) Name: John Kominoski Position: Professor Organization: Florida International University Name: Elena Solohin 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 This dataset package encompasses measurements from field surveys of mangrove regeneration, porewater variables, and light conditions across six mangrove sites in the coastal Everglades. The goal of this project was to quantify mangrove regeneration of seedlings and saplings in mid- and downstream locations within three estuaries in Everglades National Park, Florida, USA. We assessed the effects of porewater variables and light conditions on the observed regeneration patterns. The package includes seven datasets: FCE1268_Porewater: Contains measurements of porewater salinity, sulfide, ammonia, nitrite, orthophosphate, and nitrate at a 30 cm depth. Porewater surveys were conducted biannually from 09-10-2020 to 05-17-2022. See also similar porewater data for Florida Coastal Everglades (FCE) long-term sites in data packages knb-lter-fce.1169 and knb-lter-fce.1171, which contain data for SRS-5 and SRS-6, available in the FCE LTER website's data catalog or the EDI repository. FCE1268_Foliar_Nutrient_Content dataset, collected in August 2022, includes measurements of foliar nutrient content (total carbon, total nitrogen, and total phosphorus) for three mangrove species (A. germinans, L. racemosa, R. mangle) of two life stages—seedlings (height < 1 m) and saplings (height ≥ 1 m and Diameter at Breast Height (DBH) < 2.5 cm). FCE1268_Light contains light intensity (foot-candle) measurements taken at 1-hour intervals from 09-18-2020 to 08-29-2022 at mangrove sites and converted photosynthetic active radiation values from an outdoor mesocosm experiment. FCE1268_Sapling_Density provides biannual count measurements of individuals at the sapling plot level (4 m^-2) within each site from 07-09-2020 to 08-29-2022. FCE1268_Seedling_Density contains biannual count measurements of individuals at the seedling plot level (m^-2) within each site from 07-07-2020 to 08-29-2022. FCE1268_Sapling_Regeneration contains height, crown area, and stem elongation measurements of tagged sapling individuals at the plot level (4 m^-2) from 07-09-2020 to 08-29-2022. FCE1268_Seedling_Regeneration contains height, crown area, and stem elongation measurements of tagged seedling individuals at the plot level (m^-2) from 07-07-2020 to 08-29-2022. Data collection for all datasets is complete. Geographic Coverage Bounding Coordinates Geographic description: SRS5 West bounding coordinate: -81.03234716 East bounding coordinate: -81.03234716 North bounding coordinate: 25.37702258 South bounding coordinate: 25.37702258 Geographic description: SRS6 West bounding coordinate: -81.07794623 East bounding coordinate: -81.07794623 North bounding coordinate: 25.36462994 South bounding coordinate: 25.36462994 Geographic description: WSC8 West bounding coordinate: -81.06 East bounding coordinate: -81.06 North bounding coordinate: 25.423 South bounding coordinate: 25.423 Geographic description: WSC10 West bounding coordinate: -81.132 East bounding coordinate: -81.132 North bounding coordinate: 25.417 South bounding coordinate: 25.417 Geographic description: WSC12 West bounding coordinate: -81.108 East bounding coordinate: -81.108 North bounding coordinate: 25.487 South bounding coordinate: 25.487 Geographic description: WSC13 West bounding coordinate: -81.144 East bounding coordinate: -81.144 North bounding coordinate: 25.475 South bounding coordinate: 25.475 Temporal Coverage Start Date: 2020-07-07 End Date: 2022-08-29 Data Table Entity Name: FCE1268_Porewater Entity Description: This dataset includes concentrations of salinity, sulfide, PO4, NH4, NO2 and NO3 at a depth of 30 cm at four mangrove sites in the coastal Everglades from 09-10-2020 to 05-17-2022. Object Name: FCE1268_Porewater.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 site Storage Type: string Measurement Scale: WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: -9999 (No data collected) Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling Period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Plot Attribute Label: Plot ID number Attribute Definition: plot 1 or 2 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 Missing Value Code: Attribute Name: Subplot Attribute Label: Subplot ID number Attribute Definition: subplot indicates which subdivision of the two plots Storage Type: ordinal Measurement Scale: A= Subplot A B= Subplot B C= Subplot C D= Subplot D E= Subplot E F= Subplot F G= Subplot G H= Subplot H Missing Value Code: Attribute Name: Depth Attribute Label: depth Attribute Definition: collection depth in the soil Storage Type: float Measurement Scale: Units: centimeter Number Type: real Missing Value Code: Attribute Name: Replicate Attribute Label: Replicate Attribute Definition: Sulfide replicate Storage Type: string Measurement Scale: a= Replicate a b= Replicate b Missing Value Code: Attribute Name: Porewater_Salinity Attribute Label: Porewater_Salinity Attribute Definition: salinity of the porewater samples Storage Type: float Measurement Scale: Units: PSU Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Porewater_Sulfide Attribute Label: Porewater_Sulfide Attribute Definition: Sulfide concentration in porewater Storage Type: float Measurement Scale: Units: millimolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Attribute Name: Porewater_NH4 Attribute Label: Porewater_NH4 Attribute Definition: ammonia concentration in porewater Storage Type: float Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Attribute Name: Porewater_NO2 Attribute Label: Porewater_NO2 Attribute Definition: Nitrite concentration in porewater Storage Type: float Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Attribute Name: Porewater_PO4 Attribute Label: Porewater_PO4 Attribute Definition: orthophosphate concentration in porewater Storage Type: float Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Attribute Name: Porewater_NO3 Attribute Label: Porewater_NO3 Attribute Definition: Nitrate concentration in porewater Storage Type: float Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Attribute Name: Porewater_NO2plusNO3 Attribute Label: Porewater_NO2plusNO3 Attribute Definition: Nitrite plus nitrate concentration in porewater Storage Type: float Measurement Scale: Units: micromolePerLiter Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Data Table Entity Name: FCE1268_Light Entity Description: This dataset includes light intensity (foot-candle) and photosynthetic active radiation (PAR) measurements at five mangrove sites in the coastal Everglades from 09-18-2020 to 08-29-2022. Object Name: FCE1268_Light.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: Site name Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Date_Time Attribute Label: Date_Time Attribute Definition: Date and Time in EST/EDT Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season t4= Year 2022; wet season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Light_Foot_Candle Attribute Label: Light_Foot_Candle Attribute Definition: Light intensity in foot candle Storage Type: float Measurement Scale: Units: lumenPerFootSquared Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (No data collected) Attribute Name: Light_PAR Attribute Label: Light_PAR Attribute Definition: Photosynthetic active radiation (PAR) Storage Type: float Measurement Scale: Units: micromolePerMeterSquaredPerSecond Precision: 0.001 Number Type: real Missing Value Code: -9999.000 (No data collected) Data Table Entity Name: FCE1268_Sapling_Density Entity Description: This dataset includes biannual measurements of total density, height, and species composition at the plot-level (4m^2) at six mangrove sites in the coastal Everglades from 2020-07-09 to 2022-08-29. Object Name: FCE1268_Sapling_Density.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 Site Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season t4= Year 2022; wet season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Plot Attribute Label: Plot Attribute Definition: Plot 1 or 2 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 Missing Value Code: Attribute Name: Species Attribute Label: Species Attribute Definition: Species Storage Type: string Measurement Scale: A= Avicennia germinans L= Laguncularia racemosa R= Rhizophora mangle Missing Value Code: Attribute Name: Height Attribute Label: Height Attribute Definition: Height measured Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Vitality Attribute Label: Vitality Attribute Definition: Live or dead individual Storage Type: string Measurement Scale: D= Dead L= Live Missing Value Code: Data Table Entity Name: FCE1268_Seedling_Density Entity Description: This dataset includes biannual measurements of total density, height, and species composition at the plot-level (1m^2) at six mangrove sites in the coastal Everglades from 07-07-2020 to 08-29-2022. Object Name: FCE1268_Seedling_Density.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: Site name Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling Period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season t4= Year 2022; wet season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Plot Attribute Label: Plot Attribute Definition: plot 1 or 2 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 3= Plot 3 4= Plot 4 Missing Value Code: Attribute Name: Species Attribute Label: Species Attribute Definition: Species Storage Type: string Measurement Scale: A= Avicennia germinans L= Laguncularia racemosa R= Rhizophora mangle Missing Value Code: Attribute Name: Height Attribute Label: Height Attribute Definition: Height measured Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Vitality Attribute Label: Vitality Attribute Definition: Live or dead individual Storage Type: string Measurement Scale: D= Dead L= Live Missing Value Code: Data Table Entity Name: FCE1268_Sapling_Regeneration Entity Description: This dataset includes biannual measurements of height, stem elongation, crown length, and crown area of tagged saplings at the plot-level (4m^2) at six mangrove sites in the coastal Everglades from 2020-07-09 to 2022-08-29. Object Name: FCE1268_Sapling_Regeneration.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 Site Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling Period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season t4= Year 2022; wet season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Plot Attribute Label: Plot Attribute Definition: Plot 1 or 2 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 Missing Value Code: Attribute Name: Tag_ID Attribute Label: Tag_ID Attribute Definition: Tag ID of individual Storage Type: string Measurement Scale: text Missing Value Code: Attribute Name: Species Attribute Label: Species Attribute Definition: Species Storage Type: string Measurement Scale: A= Avicennia germinans L= Laguncularia racemosa R= Rhizophora mangle Missing Value Code: Attribute Name: Height Attribute Label: Height Attribute Definition: Height measured Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: Attribute Name: Canopy_Length Attribute Label: Canopy_Length Attribute Definition: Canopy length Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Canopy_Width Attribute Label: Canopy_Width Attribute Definition: Canopy width Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Stem_Elongation_Length Attribute Label: Stem_Elongation_Length Attribute Definition: Stem elongation length Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Data Table Entity Name: FCE1268_Seedling_Regeneration Entity Description: This dataset includes biannual measurements of height, stem elongation, crown length, and crown area of tagged seedlings at the plot-level (1m^2) at six mangrove sites in the coastal Everglades from 07-07-2020 to 08-29-2022. Object Name: FCE1268_Seedling_Regeneration.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 Site Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Date Attribute Label: Date Attribute Definition: Date Storage Type: dateTime Measurement Scale: Missing Value Code: Attribute Name: Sampling_Period Attribute Label: Sampling_Period Attribute Definition: Sampling period Storage Type: string Measurement Scale: t0= Year 2020; wet seson t1= Year 2021; dry seson t2= Year 2021; wet season t3= Year 2022; dry season t4= Year 2022; wet season Missing Value Code: Attribute Name: Season Attribute Label: Season Attribute Definition: Wet for June-November and dry for December-May Storage Type: string Measurement Scale: dry= dry season wet= wet season Missing Value Code: Attribute Name: Plot Attribute Label: Plot Attribute Definition: Plot 1, 2, 3, or 4 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 3= Plot 3 4= Plot 4 Missing Value Code: Attribute Name: Tag_ID Attribute Label: Tag_ID Attribute Definition: Tag ID of individual Storage Type: string Measurement Scale: text Missing Value Code: Attribute Name: Species Attribute Label: Species Attribute Definition: Species Storage Type: string Measurement Scale: A= Avicennia germinans L= Laguncularia racemosa R= Rhizophora mangle Missing Value Code: Attribute Name: Height Attribute Label: Height Attribute Definition: Height measured Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Canopy_Length Attribute Label: Canopy_Length Attribute Definition: Canopy length Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Canopy_Width Attribute Label: Canopy_Width Attribute Definition: Canopy width Storage Type: float Measurement Scale: Units: centimeter Precision: 0.1 Number Type: real Missing Value Code: -9999.0 (No data collected) Attribute Name: Stem_Elongation_Length Attribute Label: Stem_Elongation_Length Attribute Definition: Stem elongation length Storage Type: float Measurement Scale: Units: centimeter Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (No data collected) Data Table Entity Name: FCE1268_Foliar_Nutrient_Content Entity Description: This dataset includes foliar total carbon (C) and nutrient content (total nitrogen (N), total phosphorus (P)) of mangrove seedlings and saplings of three species (Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle) at six mangrove sites in the coastal Everglades in August 2022. Object Name: FCE1268_Foliar_Nutrient_Content.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 Site Storage Type: string Measurement Scale: SRS5= Shark River Slough site 5 SRS6= Shark River Slough site 6 WSC8= Harney River site 8 WSC10= Harney River site 10 WSC12= Broad River site 12 WSC13= Broad River site 13 Missing Value Code: Attribute Name: Species Attribute Label: Species Attribute Definition: Species Storage Type: string Measurement Scale: A= Avicennia germinans L= Laguncularia racemosa R= Rhizophora mangle Missing Value Code: Attribute Name: Plot Attribute Label: Plot Attribute Definition: plot 1, 2, or 3 within the site Storage Type: string Measurement Scale: 1= Plot 1 2= Plot 2 3= Plot 3 Missing Value Code: Attribute Name: TP Attribute Label: TP Attribute Definition: Total P content in mangrove leaves Storage Type: float Measurement Scale: Units: milligramPerGram Precision: 0.001 Number Type: real Missing Value Code: Attribute Name: N Attribute Label: N Attribute Definition: Total N content in mangrove leaves Storage Type: float Measurement Scale: Units: milligramPerGram Precision: 0.01 Number Type: real Missing Value Code: Attribute Name: C Attribute Label: C Attribute Definition: Total C content in mangrove leaves Storage Type: float Measurement Scale: Units: milligramPerGram Precision: .01 Number Type: real Missing Value Code: Attribute Name: Life_stage Attribute Label: Life_stage Attribute Definition: Seedling or sapling mangrove Storage Type: string Measurement Scale: Sapling= Sapling individual Seedling= Seedling individual Missing Value Code: Methods Method Step Description Methods that pertain to FCE1268_Porewater: Two (20 × 20 m) plots were established in each mangrove site, subdivided into four (10 × 10 m) subplots for porewater monitoring. All plots contain mangrove trees; plots are flooded semi-diurnally. Porewater samples were measured biannually from 09-10-2020 to 05-17-2022. Porewater samples were collected in the middle of each subplot at 30 cm depth using a porewater sipper. Sulfide samples were preserved in the field with a buffer solution and analyzed in the lab using a standard curve and a voltage meter connected to an Orion sulfide probe. Concentrations of orthophosphate, ammonium, nitrite, and nitrate were determined with a four-channel segmented flow analyzer (Model EAL QuAAtro39, Seal Analytical). A handheld YSI meter (Model Pro30, YSI Incorporated, Yellow Springs, Ohio) was used to assess salinity. Method Step Description Methods that that pertain to FCE1268_Foliar_Nutrient_Content: Four (1 × 1 m) plots for seedling measurements and two (2 × 2 m) plots for sapling measurements were randomly established within two permanent vegetation plots (20 × 20 m) at each mangrove site. Five green mangrove leaves for seedlings of each species (Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle) were collected at three plots (1 x 1 m) within each site. For saplings, five green mangrove leaves of each species were collected at three plots (2 x 2 m) within each site. Leaves were collected in August 2022 and processed for the determination of total carbon, total nitrogen, and total phosphorus content (mg g⁻¹). Leaves were oven-dried at 60°C to a constant mass, finely ground using a ball mill (SPEX CertiPrep, Metuchen, NJ, USA). Total nitrogen concentrations were determined with a NA1500 elemental analyzer (Fisons Instruments, Inc., Danvers, MA). Total phosphorus was extracted using an acid-digested (HCl) extraction, and concentrations of SRP were assessed by colorimetric analysis (Methods 365.4 and 365.2, US EPA 1983). References: EPA. 1983. Methods for chemical analysis of water and wastes. Methods 365.4 and 365.2, USA EPA 1983. Office of Research and Development, Washington, DC 20460. Method Step Description Methods that that pertain to FCE1268_Light: HOBO Pendant sensors (model MX2202, Onset Computer Corp, Massachusetts, USA) were installed at mangrove sites to measure light intensity (foot-candle) between two (20 × 20 m) permanent plots approximately 20-40 m from the shoreline at each site. Light-level loggers collected continuous light intensity (foot-candle) measurements at 1-hour intervals. Light intensity measurements collected in mangrove sites were converted to photosynthetic active radiation (PAR) (µmol s⁻¹ m⁻²) by recording light intensity and PAR simultaneously in a mesocosm experiment at Florida International University (FIU), Florida, USA. PAR data were recorded every second and averaged every minute using a handheld LI-1400 device (LI-COR, Inc. Environmental Division, Lincoln, Nebraska, USA). HOBO Pendant sensors (model MX2202, Onset Computer Corp, Massachusetts, USA) were set to record light intensity every minute. A linear relationship between PAR and foot-candle was established; the slope and intercept of this regression were used to convert the foot-candle data collected in the forest into PAR units. Method Step Description Methods that that pertain to FCE1268_Sapling_Density: At each site, two replicate plots (2 × 2 m) were randomly established within two permanent vegetation plots (20 × 20 m) for sapling measurements at each mangrove site. Total density and height of individuals at the plot level were accounted for by registering every individual inside each plot. Their height was measured to the base of the apical bud. Additionally, species composition and seedling condition (live, dead, or dying) were recorded. Measurements were made biannually for two years. Method Step Description Methods that that pertain to FCE1268_ Seedling _Density: At each site, four replicate plot (1 × 1 m) were randomly established within two permanent vegetation plots (20 × 20 m) for seedling measurements at each mangrove site. Total density and height of individuals at the plot level were accounted for by registering every individual inside each plot. Their height was measured to the base of the apical bud. Additionally, species composition and seedling condition (live, dead, or dying) were recorded. Measurements were made biannually for two years. Method Step Description Methods that that pertain to FCE1268_Sapling_Regeneration: Sapling (height > 1 m and Diameter at Breast Height (DBH) < 2.5 cm) regeneration measurements were made within two replicate plot (2 × 2 m) that were randomly established within two permanent vegetation plots (20 × 20 m) at each mangrove site. Ten individuals within each plot (2 x 2 m) were tagged and biannually measured for height, stem elongation, crown length, and crown width. Method Step Description Methods that that pertain to FCE1268_Seedling_Regeneration: Seedling (height < 1 m) regeneration measurements were made within four replicate plot (1 × 1 m) that were randomly established within two permanent vegetation plots (20 × 20 m) at each mangrove site. Ten individuals within each plot (1 x 1 m) were tagged and biannually measured for height, stem elongation, crown length, and crown area. Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1268/2/ea66e38b5943122a522beda8101099b8 Intellectual Rights Dataset Keywords FCE LTER Everglades National Park Florida Coastal Everglades LTER mangroves porewater growth primary production primary production Maintenance knb-lter-fce.1268.2: Data and metadata for FCE1268_Restrepo_Mangroves is complete. 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 Name: Veronica Restrepo Email: vrest011@fiu.edu Project permits EVER-2019-SCI-0055 EVER-2022-SCI-0029 EVER-2022-SCI-0036 EVER-2020-SCI-0057 EVER-2021-SCI-0040 EVER-2020-SCI-0036