Northern Gulf of Mexico Chemosynthetic Ecosystems Study

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Christopher J. Jenkins
Originator: William R. Bryant
Originator: Texas A&M University
Publication_Date: 2004
Title: Northern Gulf of Mexico Chemosynthetic Ecosystems Study
Geospatial_Data_Presentation_Form: datatables
Other_Citation_Details:
Department of Oceanography, Texas A&M University, College Station, Texas 77845
Online_Linkage:
Description:
Abstract:
Numerous descriptive studies of the continental shelf are available. In contrast, the topography, geology, geophysics, currents, chemistry, and biota of the continental slope are less well known. For the most part, deep-sea animals live under conditions of total darkness, low temperature, nearly featureless mud, and sparse food resources. They are generally small and fragile. But chemosynthetic animals are exceptions to the generality. The first chemosynthetic animals were discovered in the Pacific Ocean (Galapagos Rift, 1977). Living near hydrothermal vents in the spreading seafloor, these remarkable animals were shown subsequently to obtain their metabolic energy from dissolved hydrogen sulfide issuing from the vents. The high density and biomass of these very large forms were the exception which proved the rule that the main limiting factor to the deep-sea fauna is the availability of nutrients. The 1982 discovery of well-developed chemosynthetic communities near petroleum seeps in the Gulf of Mexico led MMS to require that industry protect them from the physical effects of upper continental slope exploration and production. While some investigations have been conducted in recent years, there are still few data on the life history and ecological interactions within these communities. This study addresses both operational and biological questions, the answers to which are needed for effective description, detection, and protection of these communities.
Purpose:
The purpose of this data layer is to create a digital version of the sedimentary characteristics published by Stewart (1962) for inclusion in the usSEABED data collection.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1992
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -94.7892
East_Bounding_Coordinate: -88.000
North_Bounding_Coordinate: 29.1833
South_Bounding_Coordinate: 26.3533
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: chemosynthesis
Theme_Keyword: ecosystems
Theme_Keyword: benthic habitats
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Gulf of Mexico
Place_Keyword: Northern Gulf of Mexico
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: Chris Jenkins
Contact_Organization:
Institute of Arctic & Alpine Research (INSTAAR) University of Colorado at Boulder
Contact_Address:
Address_Type: mailing and physical address
Address: 1560 30th Street
Address: Campus Box 450
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0450
Country: USA
Contact_Voice_Telephone: (303) 492-6387
Contact_Facsimile_Telephone: (303) 492-6388
Contact_Electronic_Mail_Address: chris.jenkins@colorado.edu
Browse_Graphic:
Browse_Graphic_File_Name: MMS_92-0035.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 MacDonald, ed. (1992), and Chris Jenkins 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
Cross_Reference:
Citation_Information:
Originator: MacDonald, I.R., ed.
Originator: Minerals Management Service
Publication_Date: 1992
Title:
Northern Gulf of Mexico Chemosynthetic Ecosystem Study: Literature Review and Data Synthesis, Volume III: Appendix, Prepared by Geochemical and Environmental Research Group
Edition: 1.0
Publication_Information:
Publication_Place: New Orleans, Louisiana
Publisher: Minerals Management Service
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 45 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: Chris Jenkins
Contact_Organization:
Institute of Arctic & Alpine Research (INSTAAR) University of Colorado at Boulder
Contact_Address:
Address_Type: mailing and physical address
Address: 1560 30th Street
Address: Campus Box 450
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0450
Country: USA
Contact_Voice_Telephone: (303) 492-6387
Contact_Facsimile_Telephone: (303) 492-6388
Contact_Electronic_Mail_Address: chris.jenkins@colorado.edu
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: 45
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0000
Longitude_Resolution: 0.0000
Geographic_Coordinate_Units: Decimal degrees
Distribution_Information:
Resource_Description: MacDonald, 1992
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: 20060323
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
Generated by mp version 2.8.24 on Mon Mar 27 19:55:54 2006