Open-File Report 96-0543

Preliminary Paleontologic Report on Core T-24, Little Madeira Bay, Florida

By S.E. Ishman, G.L. Brewster-Wingard, D.A. Willard, T.M. Cronin, L.E. Edwards, and C.W. Holmes

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The ecosystems in the Everglades and adjacent regions (Florida and Biscayne Bays) are showing increasing signs of stress; natural vegetation patterns are changing, fisheries are declining and pollution is increasing. In response to this, the Everglades Forever Act was passed in 1994, and Federal, State and local jurisdictions are faced with water and land use management decisions related to the restoration, mediation and monitoring of the South Florida ecosystem. To help make these decisions, the U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), National Park Service (NPS), and Army Corps of Engineers (ACOE) among others have initiated research programs focused on the restoration of a significant portion of the Everglades ecosystem. An integral part of the restoration effort is a comprehensive understanding of the ecosystem dynamics of South Florida, including evaluation of modern biotic distributions within the South Florida ecosystems and determination of natural versus human induced variability in the South Florida ecosystem.

In May 1994 sediment cores were collected from Florida Bay. Taylor Core #24 (T-24) was collected at the mouth of Taylor Creek in Little Madeira Bay (25°11.4' N, 80°38.355' W) in the northeast sector of Florida Bay by researchers from the U.S. Geological Survey (St. Petersburg, FL and Denver, CO) in cooperation with South Florida Water Management District (SFWMD), the Everglades National Park (ENP) and the National Oceanic and Atmospheric Administration (NOAA). T-24 penetrated 86 cm of Holocene sediments and was sampled for 210Pb and faunal and floral analyses. The results presented herein represent the initial report on the paleontologic investigation of core T-24. This report is produced by the Ecosystem History of South Florida component of the U.S. Geological Survey's Ecosystem Program, and is one of a series of U.S. Geological Survey Open-File Reports on the distribution of biogenic components in sediments sampled from the South Florida region.

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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Last Updated 05.17.99