Identification_Information: Citation: Citation_Information: Originator: Nancy S. Simon Publication_Date: 1998 Title: Cycling and Speciation of Mercury in the Food Chain of South Florida Online_Linkage: http://sofia.usgs.gov/projects/merc_speciation/ Description: Abstract: Methylmercury, a neurotoxin, is found in the game fish of south Florida. Samples of periphyton, the assemblage of microalgae that live in shallow submerged substrates which is home to, and food for, creatures that are the foundation of the food chain, have concentrations of methylmercury that range from non-detectable to tenths of a part per million on a dry weight basis. The report produced from this project 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. Purpose: The goal of this project is to answer the question - How does mercury produced in the aquatic environment enter the food chain and become part of the body burden of animals such as game fish in south Florida? Supplemental_Information: This project is now part of the Aquatic Cycling of Mercury in the Everglades (ACME) project Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1995 Ending_Date: 1997 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -81.5 East_Bounding_Coordinate: -80.5 North_Bounding_Coordinate: 26.75 South_Bounding_Coordinate: 25.75 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: methylmercury Theme_Keyword: mercury Theme_Keyword: periphyton Theme_Keyword: biology Theme_Keyword: hydrology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: biota Theme_Keyword: environment Theme_Keyword: inlandWaters Theme_Keyword: 002 Theme_Keyword: 007 Theme_Keyword: 012 Place: Place_Keyword_Thesaurus: Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, D.C., National Institute of Standards and Technology Place_Keyword: United States Place_Keyword: US Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D. C., NIST Place_Keyword: Florida Place_Keyword: FL Place: Place_Keyword_Thesaurus: Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology Place_Keyword: Broward County Place_Keyword: Collier County Place_Keyword: Miami-Dade County Place_Keyword: Palm Beach County Place: Place_Keyword_Thesaurus: USGS Geographic Names Information System Place_Keyword: Everglades National Park Place_Keyword: Big Cypress National Preserve Place_Keyword: Loxahatchee National Wildlife Refuge Place: Place_Keyword_Thesaurus: none Place_Keyword: Central Everglades Place_Keyword: SW Big Cypress Place_Keyword: Water Conservation Area 2A Place_Keyword: Water Conservation Area 2B Place_Keyword: Water Conservation Area 3A Place_Keyword: WCA2A Place_Keyword: WCA3A Place_Keyword: Everglades Nutrient Removal area Place_Keyword: ENR Place_Keyword: WCA2B Place_Keyword: Water Conservation Area 3B Place_Keyword: WCA3B Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy S. Simon Contact_Organization: U.S. Geological Survey Contact_Position: Project Chief Contact_Address: Address_Type: mailing address Address: 432 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703 648-5863 Contact_Facsimile_Telephone: 703 648-5832 Contact_Electronic_Mail_Address: nssimon@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://sofia.usgs.gov/publications/ofr/98-76/locmapnlx.gif Browse_Graphic_File_Description: location of study area and sampling sites for periphyton in South Florida Browse_Graphic_File_Type: GIF Data_Set_Credit: South Florida Water Management District (SFWMD) provided transportation to the collection sites. Cross_Reference: Citation_Information: Originator: Simon, N. S. Cox, T.; Spencer, R. Publication_Date: 1998 Title: Data for Periphyton and Water Samples Collected from the South Florida Ecosystem, 1995 and 1996 Geospatial_Data_Presentation_Form: report Series_Information: Series_Name: USGS Open-File Report Issue_Identification: 98-76 Publication_Information: Publication_Place: Reston VA Publisher: U.S. Geological Survey Online_Linkage: http://sofia.usgs.gov/publications/ofr/98-76 Cross_Reference: Citation_Information: Originator: Cox, T. Simon, N. S.; Newland, L Publication_Date: 1999 Title: Copper, Lead, Mercury, and Zinc from Periphyton from the South Florida Ecosystem Series_Information: Series_Name: Toxicological and Environmental Chemistry Issue_Identification: V. 70, pp. 259-274 Publication_Information: Publication_Place: Abingdon, Oxfordshire, United Kingdom Publisher: Taylor & Francis Group Other_Citation_Details: Journal membership is required for access to the full article. Online_Linkage: http://sofia.usgs.gov/publications/papers/metalsinperi/ Cross_Reference: Citation_Information: Originator: Simon, N.. S. Spenser, R. J.; Cox, T. Publication_Date: 1999 Title: Distribution of and relation among mercury and methylmercury, organic carbon, carbonate, nitrogen and phosphorus in periphyton of the South Florida Ecosystem Geospatial_Data_Presentation_Form: report Series_Information: Series_Name: Toxocological and Environmental Chemistry Issue_Identification: v. 69, p. 417-433 Publication_Information: Publication_Place: Abingdon, Oxfordshire, United Kingdom Publisher: Taylor & Francis Group Other_Citation_Details: Journal membership is required for access to the full article. Online_Linkage: http://sofia.usgs.gov/publications/papers/disnrln_peri/ Data_Quality_Information: Logical_Consistency_Report: not applicable Completeness_Report: not available Lineage: Process_Step: Process_Description: When possible, periphyton was collected by manually lifting floating periphyton mats from the water and transferring them to plastic bags. If the periphytic algae was attached to submerged aquatic plants, the plant stems were cut and the whole unit of plant and periphytic algae was collected. Periphyton samples were air-dried in the laboratory in a laminar flow hood to maintain a stream of filtered air across them. Whole samples from each site were ground and aliquants were removed for analysis. Total mercury was determined by cold vapor absorption spectroscopy. Methylmercury and other organomercury compounds were extracted using supercritical fluid carbon dioxide and quantitated using liquid chromatography with electrochemical detection. Process_Date: 1998 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy S. Simon Contact_Organization: U.S. Geological Survey Contact_Position: Project Chief Contact_Address: Address_Type: mailing address Address: 432 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703 648-5863 Contact_Facsimile_Telephone: 703 648-5832 Contact_Electronic_Mail_Address: nssimon@usgs.gov Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Heather Henkel Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 600 Fourth Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727 803-8747 ext 3028 Contact_Facsimile_Telephone: 727 803-2030 Contact_Electronic_Mail_Address: sofia-metadata@usgs.gov Resource_Description: data for periphyton and water samples 1995 and 1996 Distribution_Liability: The data have no implied or explicit guarantees Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: open file report Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://sofia.usgs.gov/publications/ofr/98-76/ Access_Instructions: The report may be downloaded from the SOFIA website. Fees: none Metadata_Reference_Information: Metadata_Date: 20070220 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Heather Henkel Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 600 Fourth Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727 803-8747 ext 3028 Contact_Facsimile_Telephone: 727 803-2030 Contact_Electronic_Mail_Address: sofia-metadata@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998