{
    "tag": 15690,
    "title": "Globorotalia truncatulinoides Sediment Trap Data in the Gulf of Mexico",
    "pubdate": "20230911",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/Gtrunc_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Modern observations of planktic foraminifera from sediment trap studies help to constrain the regional ecology of paleoceanographically valuable species. Results from a weekly-resolved sediment trap time series (2008\u20132014) in the northern Gulf of Mexico demonstrate that 92% of Globorotalia truncatulinoides flux occurs in winter (January, February, and March), and that encrusted and non-encrusted individuals represent calcification in distinct depth habitats. Individual foraminiferal analysis (IFA) of G. truncatulinoides tests were used to investigate differences in the elemental Magnesium\/Calcium (Mg\/Ca) and isotopic composition (\u03b418O and \u03b413C) of the encrusted and non-encrusted ontogenetic forms of G. truncatulinoides, and to estimate their calcification depth in the northern Gulf of Mexico. Estimates show that non-encrusted and encrusted G. truncatulinoides have mean calcification depths of 66 \u00b1 9 meters and 393 \u00b1 83 meters, respectively. The Mg\/Ca-calcification temperature relationship was validated for G. truncatulinoides and demonstrated that the \u03b418O and Mg\/Ca of the non-encrusted form is a suitable proxy for winter surface mixed layer conditions in the Gulf of Mexico. Care should be taken not to combine encrusted and non-encrusted individuals of G. truncatulinoides for down core paleoceanographic studies. For further information regarding data collection and\/or processing methods as well as the associated published manuscript refer to Reynolds and others (2018b).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Reynolds, Caitlin E.",
            "role": "Author"
        },
        {
            "name": "Richey, Julie N.",
            "role": "Author"
        },
        {
            "name": "Fehrenbacher, Jennifer S.",
            "role": "Author"
        },
        {
            "name": "Rosenheim, Brad E.",
            "role": "Author"
        },
        {
            "name": "Spero, Howard J.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "142",
            "name": "carbon isotope analysis",
            "scope": "Experimental determination of the proportion of a given stable carbon isotope (C12 or C13) in a sample."
        },
        {
            "thcode": 2,
            "code": "311",
            "name": "ecology",
            "scope": "Study of the relations between living plants and animals and their environment."
        },
        {
            "thcode": 2,
            "code": "437",
            "name": "geochemistry",
            "scope": "Study of the distribution of chemical elements and natural compounds on the earth and in the atmosphere and the chemical processes that affect the earth."
        },
        {
            "thcode": 2,
            "code": "654",
            "name": "light stable isotope analysis",
            "scope": "Analytical technique using mass spectrometry to measure the different isotopic forms of low mass (light) elements such as oxygen, hydrogen, carbon, nitrogen and sulfur that occur in samples."
        },
        {
            "thcode": 2,
            "code": "706",
            "name": "marine geology",
            "scope": "Branch of geology concerned with the composition, geologic history, and earth processes of the ocean floor and the continental margin."
        },
        {
            "thcode": 2,
            "code": "738",
            "name": "micropaleontology",
            "scope": "Branch of paleontology dealing with fossils too small to be seen without a microscope."
        },
        {
            "thcode": 2,
            "code": "855",
            "name": "oxygen isotope analysis",
            "scope": "Experimental determination of the proportion of a given stable oxygen isotope in a sample."
        },
        {
            "thcode": 2,
            "code": "903",
            "name": "plankton",
            "scope": "Floating aquatic plants (phytoplankton) and animals (zooplankton) which are often microscopic and drift with the current in lakes, rivers, and oceans."
        },
        {
            "thcode": 2,
            "code": "940",
            "name": "protists",
            "scope": "Unicellular eukaryotes (organisms possessing nucleated cells) with affinities to both plants and animals. Classed in the Protista or Potoctista kingdom, they include protozoans, foraminifera, radiolarians, fungi and some algae."
        },
        {
            "thcode": 2,
            "code": "940",
            "name": "protists",
            "scope": "Unicellular eukaryotes (organisms possessing nucleated cells) with affinities to both plants and animals. Classed in the Protista or Potoctista kingdom, they include protozoans, foraminifera, radiolarians, fungi and some algae."
        },
        {
            "thcode": 15,
            "code": "002",
            "name": "biota",
            "scope": "Flora or fauna in natural environment, for example wildlife, vegetation, biological sciences, ecology, wilderness, sea life, wetlands, habitat, biological resources"
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "08CEV01",
        "08CEV02",
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}