publications > open file report > OFR 98-76
U.S. Department of the Interior
Data for Periphyton and Water Samples Collected from the South Florida Ecosystem, 1995 and 1996
by N. S. Simon, T. Cox and R. Spencer
This report presents data for samples of periphyton and water collected in 1995 and 1996 from Water Conservation Areas, the Big Cypress National Preserve, and the Everglades National Park in south Florida. Periphyton samples were analyzed for concentrations of total mercury, methylmercury, nitrogen, phosphorus, organic carbon, and inorganic carbon. Water-column samples collected on the same dates as the periphyton samples were analyzed for concentrations of major ions.
This report provides a compilation of data collected by the U.S. Geological Survey (USGS) from March 1995 through December 1996 in support of the Aquatic Cycling of Mercury in the Everglades Project of the USGS South Florida Ecosystem Program. The report includes water column chemistry for samples collected in March, July and December 1995 and June and December 1996. It also includes results of analyses of (1) whole periphyton samples representing grab samples, (2) whole periphyton samples with replicates to evaluate homogeneity, and (3) periphyton mat samples that were sectioned before analysis. More than 150 samples of periphyton were analyzed. Methods and techniques for sample analysis are discussed.
The study area is located in the area of Florida south of Lake Okeechobee (Figure 1). It includes Water Conservation Areas (WCA) 2A, 2B, 3A, and 3B. Also included are sites in the Big Cypress National Preserve and Everglades National Park.
The South Florida Ecosystem Program provides funding for the Aquatic Cycling of Mercury in the Everglades Project. The assistance of Benjamin McPherson and Kim Haag, South Florida National Water Quality Assessment Program, USGS, Tampa, FL, and Peter S. Rawlik, South Florida Water Management District, West Palm Beach, FL, in the collection of samples is greatly appreciated.
Chief, Branch of Regional Research, U.S. Geological Survey
Chief, Branch of Regional Research,
U.S. Geological Survey
U.S. Department of the Interior, U.S. Geological Survey
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