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2008-2017 Globigerinoides ruber Sediment Trap Data Collected from the Gulf of Mexico

Metadata Updated: October 13, 2022

This data release includes results of a high-resolution (1–2 weeks) and long-term sediment trap time series collected from the northern Gulf of Mexico. This dataset allows for a detailed assessment of the seasonal distribution, size, morphological variability and geochemistry of co-occurring pink and white chromotypes of the shallow-water foraminifera, Globigerinoides ruber. The flux of both chromotypes is highly correlated, and both represent mean annual conditions in the marine surface mixed layer. Under modern climatic conditions in the Gulf of Mexico, USGS researchers found no significant offset in the Magnesium/Calcium (Mg/Ca) and delta Oxygen-18 (d18O) of co-occurring pink and white G. ruber (Richey and others, 2019). Furthermore, findings show the d18O and delta Carbon-13 (d13C) among the two morphotypes (sensu stricto and sensu lato) of both pink and white G. ruber to be indistinguishable. The test size distribution within the population varies seasonally, with the abundance of large individuals increasing (decreasing) in summer (winter).

Access & Use Information

Public: This dataset is intended for public access and use. 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 Created Date October 13, 2022
Metadata Updated Date October 13, 2022

Metadata Source

Harvested from DOI DCAT-US harvest source

Additional Metadata

Resource Type Dataset
Metadata Created Date October 13, 2022
Metadata Updated Date October 13, 2022
Publisher U.S. Geological Survey
Maintainer
Identifier USGS:22e65d32-89f0-448e-913d-f6b161456f74
Data Last Modified 20201013
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 841f2d1b-2b38-449e-8455-fffafaeacce1
Harvest Source Id bee011ae-6f4a-4b9b-bef9-6c8b6453c562
Harvest Source Title DOI DCAT-US harvest source
Metadata Type geospatial
Old Spatial -90.3, 27.5, -90.3, 27.5
Publisher Hierarchy Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 2ec8bf20a36efe8db24dfc49abd13d56e7c9cdd5
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -90.3, 27.5, -90.3, 27.5, -90.3, 27.5, -90.3, 27.5, -90.3, 27.5}

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