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Macroalgae Production in Florida Bay (FCE), South Florida from May 2007 to Present


At a Glance


Authors: Ligia Collado-Vides
Time period: 2007-05-07 to 2019-01-10
Package id: knb-lter-fce.1112.8
Dataset id: LT_PP_Collado_001

How to cite:
Collado-Vides, L.. 2019. Macroalgae Production in Florida Bay (FCE), South Florida from May 2007 to Present. Environmental Data Initiative. https://doi.org/10.6073/pasta/e49e256a8b8d4842b68894721107ab16. Dataset accessed 2020-10-26.

Geographic Coverage


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Detailed Metadata


  • Dataset Creator(s)
    • Name: Dr. Ligia Collado-Vides 
    • Position: Project Collaborator
    • Organization: Southeast Environmental Research Center
    • Address: Department of Biological Sciences
      FIU
      11200 SW 8th Street
      OE 167
      Miami, FL 33199 USA
    • Phone: 305-348-2274
    • Fax: 305-348-4096
    • Email: colladol@fiu.edu
    • URL: http://www.marinemacroalgae.com/

  • Dataset Abstract
    Benthic primary production in Florida Bay is mainly driven by mangroves, seagrass, peryphiton, and macroalgae. The nutrient dynamics and salinity regimes at Florida Bay are strongly influenced by marine waters from the Gulf of Mexico, oceanic waters from the Atlantic Ocean and fresh waters from the Everglades creating a complex estuary with oligohaline ecotones. Marine and groundwater are sources of P and are expected to decline with increased freshwater inflow (Childers et al. 2006a; Price et al. 2006). The Taylor Slough ecotone, (TS/Ph), which flows into the Bay, is characterized by small tidal influence and clear seasonal variability in water source and quality (Davis et al. 2003; Sutula et al. 2001), receives P from shallow groundwater inputs (Price et al. 2006).Therefore the amount of freshwater inputs from the Everglades will affect salinity, water residence times, and the sources, availability, and flux of organic and inorganic nutrients on Florida Bay. As a consequence gradients of N and P concentrations are characteristic in the Bay with expected low concentration of P and high N on the fresh water end, contrasting with higher levels of P and lower of N towards the marine section of the Bay. This gradient in P concentrations is expected to reflect in differences in both primary production and biomass along the TS/Ph ecotone. One of the Everglades LTER scientist general hypothesis is "that increasing inputs of freshwater will enhance oligotrophy in nutrient-poor coastal systems, as long as the inflowing water has low nutrient content; this dynamic will be most pronounced in the oligohaline ecotone" (LTER program). In this context we expect to have a differential production of calcareous macroalgae along the TS-Ph transect which reflect the P gradient with low productivity towards the fresh water influenced sites close to the Everglades increasing towards the marine section of the Bay. We document the primary production of calcareous green macroalgae along the TS-Ph transect including three contrasting environments at Florida Bay. The transect include site TS-Ph 9 located near Duck Key in oligotrophic northeastern Florida Bay; TS-Ph 10 is located near Bob Allen Keys in the oligotrophic center Florida Bay and TS-Ph 11 is located near Sprigger Bank at the western open boundary between Florida Bay and the Gulf of Mexico.In order to survey the temporal and spatial variability in production of calcareous marine macroalgae, a monitoring survey was started in 2007 on the three TS-Ph transect. In each site 3 hazard selected quadrats were sampled for biomass, CaCO3 production and species ID, and abundance using Braun Blanquet Index. Surveys are conducted bimonthly.Results show a significant difference on production with a high abundance and biomass at Sprigger Bank (Ts-Ph11) compared with lower values at Bob Allan Key and Duck Key. Seasonal changes show a higher production in summer compared with winter periods. The long term trend shows a decline on production in Sprigger Bank. Thalli CaCO3 content has a linear relation with biomass (carbon content) indicating a constant relationship between CaCO3 fixation and algae size-biomass. As a general trend we document a higher calcareous green macroalgae production towards the marine sites, consistent with the fact that the TS-Ph transect shows an enhanced productivity in the TS/Ph toward the marine end of the Bay (Fourqurean et al., 1992). A decline in calcareous green macroalgae at Sprigger Bank is reported based on 4 years of survey, which might have consequences on sand production for this site, moreover this will eventually change the sediment characteristics of this site. Our long term data set is a base line that will allow us detect potential changes in CaCO3 fixation by calcareous green macroalgae as a consequence of predicted acidification of the oceans.
  • Geographic Coverage
    Study Extent Description
    The Study Extent of this dataset includes the FCE Florida Bay research sites within Everglades National Park, South Florida

    Bounding Coordinates
    Data were collected in the Florida Bay, within Everglades National Park, South Florida
    N: 25.177, S: 24.913, E: -80.490, W: -80.938

    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

    FCE LTER Sites
    TS/Ph9, TS/Ph10 and TS/Ph11

    All Sites
    Geographic Description
    Bounding Coordinates
    FCE LTER Site TS/Ph9
    N: 25.177, S: 25.177, E: -80.490, W: -80.490
    FCE LTER Site TS/Ph10
    N: 25.025, S: 25.025, E: -80.681, W: -80.681
    FCE LTER Site TS/Ph11
    N: 24.913, S: 24.913, E: -80.938, W: -80.938
  • Attributes
    • Data Table:   Macroalgae Biomass found in Florida Bay Quadrants
      Attribute Name:
      SITENAME
      Attribute Label:
      sitename
      Attribute Definition:
      Name of LTER site
      Storage Type:
      text
      Measurement Scale:
      Name of LTER site
      Missing Value Code:
       

      Attribute Name:
      Date
      Attribute Label:
      date
      Attribute Definition:
      Collection date
      Storage Type:
      datetime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      QuadrantNumber
      Attribute Label:
      ID number
      Attribute Definition:
      Quadrant ID Number
      Storage Type:
      Measurement Scale:
      Quadrant ID Number
      Missing Value Code:
       

      Attribute Name:
      DryWeight
      Attribute Label:
      dry weight
      Attribute Definition:
      Dry Weight of Macroalgae per quadrant
      Storage Type:
      data
      Measurement Scale:
      Units: gramsPerSquareMeter
      Precision: 0.001
      Number Type: real
      Missing Value Code:
      -9999.000 (Value will never be recorded )

      Attribute Name:
      CaCO3
      Attribute Label:
      concentration
      Attribute Definition:
      Calcium Carbonate per quadrant
      Storage Type:
      data
      Measurement Scale:
      Units: gramsPerSquareMeter
      Precision: 0.001
      Number Type: real
      Missing Value Code:
      -9999.000 (Value will never be recorded )

      Attribute Name:
      Biomass
      Attribute Label:
      biomass
      Attribute Definition:
      Macroalgae biomass per quadrant
      Storage Type:
      data
      Measurement Scale:
      Units: gramsPerSquareMeter
      Precision: 0.001
      Number Type: real
      Missing Value Code:
      -9999.000 (Value will never be recorded or samples in processing)


  • Methods
    Sampling Description
    TS-Ph transect including three contrasting environments at Florida Bay is evaluated. The transect include site TS-Ph 9 located near Duck Key in oligotrophic northeastern Florida Bay; TS-Ph 10 is located near Bob Allen Keys in the oligotrophic center Florida Bay and TS-Ph 11 is located near Sprigger Bank at the western open boundary between Florida Bay and the Gulf of Mexico. In each site 3 random quadrats are sampled. First abundance is estimated using a Braun-Blanquet index, then all calcareous green macroalgae are collected. In the lab material is cleaned and identified at the species level following taxonomic keys (Littler and Littler 2000). All material of quadrat is then left in the oven for 48 hours at 68 degrees C. Dry weight is calculated and reported. The same dry material is then burned in a furnace at 500 degrees C for 3 hours; ashes are weighted and reported as CaCO3, biomass is estimated as Dry weight minus ashes.

    Method Step

    Description
    In each site 3 hazard selected quadrats are sampled, abundance is estimated using Braun Blanquet Index. Then all calcareous green macroalgae are collected. In the lab samples are cleaned and species ID at species level. Samples are then dried at 68 degrees C for 48 hours. Dry samples are weighted and mass value is recorded. Dry samples are then burned in a furnace for 3 hours at 500 degrees C. Ashes are weighted and CaCO3 production is recorded. Mass minus CaCo3 is recorded as biomass value. Surveys are conducted bimonthly at three sites (TS/PH.9, 10 and 11).

    Instrumentation
    Balance, oven, furnace

    Quality Control
    data are entered by students, evaluated for trend, detecting spikes or valleys, then supervised by PI
  • Distribution and Intellectual Rights
    Online distribution
    http://fcelter.fiu.edu/perl/public_data_download.pl?datasetid=LT_PP_Collado_001_MacroalgaeProduction_FB.txt
    Data Submission Date:  2019-05-07

    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.

  • Keywords
    primary production, macroalgae, biomass, marine, freshwater, FCE, Florida Coastal Everglades LTER, ecological research, long-term monitoring, productivity, macroalgae, Florida Bay, CaCO3, Calcium Carbonate, macroalgae production, production, nutrients, transects, processes, FCE LTER
  • Dataset Contact
    • Name: Ligia Collado-Vides 
    • Position: Southeast Environmental Research Center Collaborator
    • Organization: Southeast Environmental Research Center
    • Address: Department of Biological Sciences
      FIU
      11200 SW 8th Street
      OE 167
      Miami, FL 33199 USA
    • Phone: 305-348-2274
    • Fax: 305-348-4096
    • Email: colladol@fiu.edu
    • URL: http://www.marinemacroalgae.com/

    • 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

  • Data Table and Format
    Data Table:  Macroalgae Biomass found in Florida Bay Quadrants

    Entity Name:
    LT_PP_Collado_001.txt
    Entity Description:
    Macroalgae Biomass found in Florida Bay Quadrants
    Object Name:
    LT_PP_Collado_001.txt
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    538