Relative Abundance Diatom Data from Periphyton Samples Collected from the Greater Everglades, Florida USA from September 2005 to November 2014
Authors: Evelyn Gaiser
Time period: 2005-09-14 to 2014-11-14
Package id: knb-lter-fce.1211.4
Dataset id: LT_CERP_Gaiser
How to cite:
Gaiser, E.. 2021. Relative Abundance Diatom Data from Periphyton Samples Collected from the Greater Everglades, Florida USA from September 2005 to November 2014. Environmental Data Initiative. https://doi.org/10.6073/pasta/a9dca89331d33221c59a6aa0ae96278a. Dataset accessed 2023-09-28.
Dataset AbstractThis data package contains relative diatom taxon abundances collected annually during the wet season between 2005 and 2014 from sites distributed throughout the greater Everglades ecosystem. This project is part of the Comprehensive Everglades Restoration Program's Monitoring and Assessment Plan intended to document baseline variability in periphyton attributes for assessing the effectiveness of restoration projects. A total of 200 primary sampling units (PSU) of 800 m x 800 m are nested in 32 landscape units and each year, random coordinates are 'drawn' within each PSU and one sampleable draw is visited in each. Sampled periphyton is processed for diatoms, slides are prepared, and 500 frustules are enumerated and identified to the lowest possible taxonomic resolution per slide. Taxon abundances are then relativized to the total count. These data accompany environmental, periphyton biomass, and soft algal abundance datasets. Post-2014 data are available upon request to the project PI, Evelyn Gaiser.
Geographic CoverageStudy Extent Description
Between September 2005 and November 2014, samples were taken in the Everglades ecosystem, from LOX to ENP (NE to SW; see Dataset geographic description).
Data were collected in Principal Sampling Units (800m x 800m) in the following regions (see list of sites at row 121). LKO: Lake Okeechobee; LOX: the Arthur R. Marshall Loxahatchee National Wildlife Refuge (Water Conservation Area 1); Pal Mar (PAL); Pennsuco (PEN), Lostman’s Creek (LMC), the ‘Oligohaline’ area (OLG), Southern Marl Prairie (SMP), Shark River Slough (SRS) and Taylor Slough (TSL); Holey Land Wildlife Management Area (HOL), Water Conservation Areas (WCA) 2 and 3.
N: 27.096, S: 25.216, E: -80.150, W: -81.099
Temporal CoverageStart Date: 2005-09-14
End Date: 2014-11-14
A representative set of locations (800 m x 800 m principal sampling units, PSU) were selected within landscape units using generalized random-tessellation stratification. A location was drawn from a pool of GPS coordinates and sampled if depth was < 1 m and vegetation was not too dense to hamper the formation of periphyton and our movement in the field. Samples were taken from a 1 m3 enclosure, open both at the top and bottom. Periphyton was removed and a subsampled placed in a 120 mL plastic beaker. Where no mats were present, flocculent detritus from the benthos was sampled. Samples were transported to the laboratory on ice and frozen until analysis for diatom composition. Accompanying data include environmental, periphyton, and soft algae attributes. [Marazzi, L., E.E. Gaiser, V.J. Jones, F. Tobias, A.W. Mackay. 2017. Algal richness and life-history strategies are influenced by hydrology and phosphorus in two major subtropical wetlands. Freshwater Biology 62: 274-290. DOI: 10.1111/fwb.12866 ].
Diatom samples were cleaned of calcite and organic matter using strong acids and chemical oxidizers, and then permanently affixed to glass slides using Naphrax®. A minimum of 500 valves were counted and identified per slide using a compound light microscope at 1,000× magnification. Identifications were made to the lowest taxonomic level possible (variety or forma). [Lee et al. (2013) Diatom-based Models for Inferring Hydrology and Periphyton Abundance in a Subtropical Karstic Wetland: Implications for Ecosystem-Scale Bioassessment Wetlands 33: 157–173].
Data were entered into excel files and then cross-checked and validated by two individuals before migrating into a database.
Distribution and Intellectual RightsOnline distribution
Data Submission Date: 2021-10-27
All publications based on this dataset must cite the data provider (Evelyn Gaiser, Florida International University), funding sources, the U.S. Army Corps of Engineers (CA#912HZ-11-2-0048) and the South Florida Water Management District (CA#4600001083 and CA#C-C040130).
Publications citing this datasetWisnoski, Nathan I., Riley Andrade, Max C. N. Castorani, Christopher P. Catano, Aldo Compagnoni, Thomas Lamy, Nina K. Lany, Luca Marazzi, Sydne Record, Annie C. Smith, Christopher M. Swan, Jonathan D. Tonkin, Nicole M. Voelker, Phoebe L. Zarnetske, and Eric R. Sokol. 2023. Diversity–stability relationships across organism groups and ecosystem types become decoupled across spatial scales. Ecology 104:
KeywordsBiodiversity, Algae, Restoration, Wetland, populations, FCE, FCE LTER, Florida Coastal Everglades LTER, long-term monitoring
Data Table and FormatData Table: A wide matrix of Diatom Abundance vs. CERP sampling location