The Deepwater Program: Northern Gulf of Mexico Continental Slope Habitat and Benthic Ecology - DgoMB: Invertebrates

Metadata Updated: February 27, 2019

A research program has been initiated by the Minerals Management Service (Contract No. 1435-01-99-CT-30991) to gain better knowledge of the benthic communities of the deep Gulf of Mexico entitled "The Deepwater Program: Northern Gulf of Mexico Continental Slope Habitat and Benthic Ecology". Increasing exploration and exploitation of fossil hydrocarbon resources in the deep-sea prompted the Minerals Management Service of the U.S. Department of the Interior to support an investigation of the structure and function of the assemblages of organisms that live in association with the sea floor in the deep-sea. The program, Deep Gulf of Mexico Benthos or DGoMB, is studying the northern Gulf of Mexico (GOM) continental slope from water depths of 300 meters on the upper continental slope out to greater than 3,000 meters water depth seaward of the base of the Sigsbee and Florida Escarpments. The study is focused on areas that are the most likely targets of future resource exploration and exploitation. However, to develop a Gulf-wide perspective of deep-sea communities, sampling in areas beyond those thought to be potential areas for exploration has been included in the study design. A major enhancement in the program is the extension of the transects onto the abyssal plain of the central Gulf of Mexico through collaborative studies with Mexican scientists. This additional work effort will allow assessment of benthic communities structure and function throughout the basin by sampling the deepest habitats in the region. The program is designed to gain a better ability to predict variations in the structure and function of animal assemblages in relation to water depth, geographic location, time and overlying water mass. Biological studies are integrated with measurements of physical and chemical hydrographic parameters, sediment geochemical properties and geological characteristics that are known to influence benthic community distributions and dynamics. Eight (8) hypotheses are being tested on the basis of measures of benthic community structure. It is hypothesized that community structure varies as a function of: 1) water depth, 2) geographic location (east vs. west), 3) association with canyons, 4) association with mid-slope basins, 5) sea surface primary productivity, 6) proximity to hydrocarbon seeps, 7) time (seasonal and inter-annual scales), and 8) association with the base of escarpments.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date 2017-11-28T18:10:56Z
Metadata Created Date February 27, 2019
Metadata Updated Date February 27, 2019
Reference Date(s) August 1, 2002 (Start Date), August 31, 2002 (End Date)
Frequency Of Update

Additional Metadata

Resource Type Dataset
Metadata Date 2017-11-28T18:10:56Z
Metadata Created Date February 27, 2019
Metadata Updated Date February 27, 2019
Reference Date(s) August 1, 2002 (Start Date), August 31, 2002 (End Date)
Responsible Party Derek Masaki (Point of Contact)
Contact Email
Access Constraints
Coupled Resource
Frequency Of Update
Guid 5707f33ce4b06fa6ac664825
Licence
Metadata Language eng: USA
Metadata Type geospatial
Progress
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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