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Globorotalia truncatulinoides Sediment Trap Data in the Gulf of Mexico

May 2, 2018

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 (2008-2014) 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. We use individual foraminiferal analysis (IFA) of G. truncatulinoides tests to investigate differences in the elemental (Mg/Ca) and isotopic composition (delta 18O and delta 13C) of the encrusted and non-encrusted ontogenetic forms of G. truncatulinoides, and to estimate their calcification depth in the northern Gulf of Mexico.

For further information regarding data collection and/or processing methods as well as the associated published manuscript refer to Reynolds, C.E., Richey, J.N., Fehrenbacher, J.S., Rosenheim, B.E., and Spero, H.J., 2018, Environmental controls on the geochemistry of Globorotalia truncatulinoides in the Gulf of Mexico-Implications for paleoceanographic reconstructions: Marine Micropaleontology,

*Sediment trap foraminifera flux were incorrectly calculated per 0.5 m2 area instead of 1 m2 in this version of the dataset. Corrected data has been provided in a new data release,

Publication Year 2018
Title Globorotalia truncatulinoides Sediment Trap Data in the Gulf of Mexico
DOI 10.5066/F72806W4
Authors Caitlin E Reynolds, Julie N Richey, Jennifer S. Fehrenbacher, Brad E. Rosenheim, Howard J. Spero
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization St. Petersburg Coastal and Marine Science Center