Identification_Information: Citation: Citation_Information: Originator: Mark. F. Godcharles Originator: Walter C. Jaap Originator: Florida Department of Natural Resources Publication_Date: 1973 Title: Exploratory clam survey of Florida nearshore and estuarine waters with commercial hydraulic dredging gear. Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Professional Paper Issue_Identification: 21 Other_Citation_Details: Florida Department of Natural Resources, Marine Research Laboratory, St. Petersburg, Florida Online_Linkage: http://research.myfwc.com/dg.lts/id.27333/publications.publication_info.htm Description: Abstract: Distribution and abundance of commercial clams were investigated, using a hydraulic Nantucket clam dredge and a Maryland soft-shell escalator clam dredge at 846 stations along the west and southeast coasts of Florida, during 1970 and 1971. Sunray venus clams, Macrocallista nimbosa, occurred along the entire west coast but were more abundant north of Tampa Bay and were found in commercial quantities only on the existing commercial Bell Shoal bed. Southern quahogs, Mercenaria carnpechiensis, were most abundant near passes along central and southwest Florida. In bays, both species were usually associated with seagrasses, but this was not noted in open Gulf collections. Both species were seldom collected beyond 9.2 m depths. The most abundant bivalve was the marsh clam, Rangla cuneata, confined to brackish areas of the Peace and Myakka Rivers. At lower salinities R. cuneata were larger and had more size classes. Purpose: The purpose of this data layer is to create a digital version of the sedimentary characteristics published by Godcharles and Jaap (1973) for inclusion in the usSEABED data collection. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1973 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -85.56389 East_Bounding_Coordinate: -81.13333 North_Bounding_Coordinate: 30.00556 South_Bounding_Coordinate: 24.675 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: hard bottom Theme_Keyword: bottom characteristics Theme_Keyword: habitats Theme_Keyword: clam beds Place: Place_Keyword_Thesaurus: General Place_Keyword: Gulf of Mexico Place_Keyword: Eastern Gulf of Mexico Place_Keyword: Florida Place_Keyword: Florida Coast Access_Constraints: None Use_Constraints: None except that acknowledgement must be made in publications and reports of (i) the original data source, and (ii) the data integration by USGS and dbSEABED project at the University of Colorado. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian J. Buczkowski Contact_Organization: U.S. Geological Survey Contact_Position: Core Curator and Data Management Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: (508) 458-8700 x2361 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: bbuczkowski@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: FlaDNR21.jpg Browse_Graphic_File_Description: Image showing geographic extent of data layer coverage Data_Set_Credit: Please review the cross reference information for the original data set credit to Godcharles and Jaap (1973), and Jim Flocks and Brian Buczkowski for digitizing samples locations and entering the data from the source report. Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: All attributes were entered and checked in a consistent manner. Logical_Consistency_Report: No additional check for topological consistency were performed on this data. Completeness_Report: Sedimentary descriptions and locations are provided for 752 samples. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigational accuracy is unknown. Lineage: Process_Step: Process_Description: Digital data were hand formatted into dbSEABED data entry structure, then filtered and data-mined through dbSEABED software (version: db9_MNEx.bas) Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian J. Buczkowski Contact_Organization: U.S. Geological Survey Contact_Position: Core Curator and Data Management Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: (508) 458-8700 x2361 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: bbuczkowski@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 752 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.12345 Longitude_Resolution: 0.12345 Geographic_Coordinate_Units: Decimal degrees Distribution_Information: Resource_Description: Godcharles and Jaap, 1973 Distribution_Liability: Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. Metadata_Reference_Information: Metadata_Date: 20060327 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian J. Buczkowski Contact_Position: Core Curator and Data Management Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2361 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: bbuczkowski@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile