Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008-11
Open-File Report
2013-1158
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Abstract
The U.S. Geological Survey anchored a sediment trap in the northern Gulf of Mexico to collect seasonal time-series data on the flux and assemblage composition of live planktic foraminifers. This report provides an update of the previous time-series data to include results from 2011. Ten species, or varieties, constituted ~92 percent of the 2011 assemblage: Globigerinoides ruber (pink and white varieties), Globigerinoides sacculifer, Globigerina calida, Globigerinella aequilateralis, Globorotalia menardii group [The Gt. menardii group includes Gt. menardii, Gt. tumida, and Gt. ungulata], Orbulina universa, Globorotalia truncatulinoides, Pulleniatina spp., and Neogloboquadrina dutertrei. The mean daily flux was 205 tests per square meter per day (m-2 day-1), with maximum fluxes of >600 tests m-2 day-1 during mid-February and mid-September and minimum fluxes of <60 tests m-2 day-1 during mid-March, the beginning of May, and November. Globorotalia truncatulinoides showed a clear preference for the winter, consistent with data from 2008 to 2010. Globigerinoides ruber (white) flux data for 2011 (average 30 tests m-2 day-1) were consistent with data from 2010 (average 29 m-2 day-1) and showed a steady threefold increase since 2009 (average 11 tests m-2 day-1) and a tenfold increase from the 2008 flux (3 tests m-2 day-1).
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008-11 |
| Series title | Open-File Report |
| Series number | 2013-1158 |
| DOI | 10.3133/ofr20131158 |
| Year Published | 2013 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | St. Petersburg Coastal and Marine Science Center |
| Description | iii, 11 p. |
| Time Range Start | 2008-01-01 |
| Time Range End | 2011-01-01 |
| Country | United States |
| Other Geospatial | Gulf Of Mexico |
| Online Only (Y/N) | Y |
| Google Analytic Metrics | Metrics page |