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Caitlin Reynolds is out at sea to continue a study on sediment flux in the Gulf of America

By St. Petersburg Coastal and Marine Science Center May 20, 2022

Caitlin departed on the R/V Weatherbird II last weekend to collect samples from, and redeploy, sediment traps in the Gulf of America. She will be joined by a group of Eckerd College students for their first research cruise experience.

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Photo of planktic foraminifers from the Gulf of Mexico sediment trap seen through the microscope

Paleoceanographic Proxy Calibration

A sediment trap time series in the northern Gulf of America is used to better assess the control of environmental variables (e.g., temperature and salinity) on the flux of both microfossils and molecular fossils to the sediments. The information gained from sediment trap studies is used to develop better proxy-based estimates of past oceanographic conditions from analyses of microfossils and...
By
Ecosystems Mission Area, Ecosystems Land Change Science Program, St. Petersburg Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization
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A sediment trap time series in the northern Gulf of America is used to better assess the control of environmental variables (e.g., temperature and salinity) on the flux of both microfossils and molecular fossils to the sediments. The information gained from sediment trap studies is used to develop better proxy-based estimates of past oceanographic conditions from analyses of microfossils and...
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We present results here from a high-resolution (1-2 weeks) and long-running sediment trap time series from the northern Gulf of Mexico which allows for a detailed assessment of the seasonal distribution, size, morphological variability and geochemistry of co-occurring pink and white chromotypes of Globigerinoides ruber. The flux of both chromotypes is highly correlated, and both...
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Synchronised reproduction offers clear benefits to planktonic foraminifera – an important group of marine calcifiers – as it increases the chances of successful gamete fusion. Such synchrony requires tuning to an internal or external clock. Evidence exists for lunar reproductive cycles in some species, but its recognition in shell flux time series has proven difficult, raising questions...
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By understanding modern changes in temperature, and therefore past changes in the climate of the Gulf of America, scientists can better predict...

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Related

Photo of planktic foraminifers from the Gulf of Mexico sediment trap seen through the microscope

Paleoceanographic Proxy Calibration

A sediment trap time series in the northern Gulf of America is used to better assess the control of environmental variables (e.g., temperature and salinity) on the flux of both microfossils and molecular fossils to the sediments. The information gained from sediment trap studies is used to develop better proxy-based estimates of past oceanographic conditions from analyses of microfossils and...
By
Ecosystems Mission Area, Ecosystems Land Change Science Program, St. Petersburg Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization
Paleoceanographic Proxy Calibration

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A sediment trap time series in the northern Gulf of America is used to better assess the control of environmental variables (e.g., temperature and salinity) on the flux of both microfossils and molecular fossils to the sediments. The information gained from sediment trap studies is used to develop better proxy-based estimates of past oceanographic conditions from analyses of microfossils and...
Learn More

Globigerinoides ruber Sediment Trap Data in the Gulf of Mexico Globigerinoides ruber Sediment Trap Data in the Gulf of Mexico

We present results here from a high-resolution (1-2 weeks) and long-running sediment trap time series from the northern Gulf of Mexico which allows for a detailed assessment of the seasonal distribution, size, morphological variability and geochemistry of co-occurring pink and white chromotypes of Globigerinoides ruber. The flux of both chromotypes is highly correlated, and both...
By
Land Change Science Program, St. Petersburg Coastal and Marine Science Center

Globorotalia truncatulinoides Sediment Trap Data in the Gulf of Mexico Globorotalia truncatulinoides Sediment Trap Data in the Gulf of Mexico

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008–14 Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008–14

The U.S. Geological Survey anchored a sediment trap in the northern Gulf of Mexico in January 2008 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 continuous results from January 2013 through May 2014. Ten taxa constituted ~95 percent of both the 2013 and...
Authors
Caitlin E. Reynolds, Julie N. Richey
By
Ecosystems Land Change Science Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

Lunar periodicity in the shell flux of planktonic foraminifera in the Gulf of Mexico Lunar periodicity in the shell flux of planktonic foraminifera in the Gulf of Mexico

Synchronised reproduction offers clear benefits to planktonic foraminifera – an important group of marine calcifiers – as it increases the chances of successful gamete fusion. Such synchrony requires tuning to an internal or external clock. Evidence exists for lunar reproductive cycles in some species, but its recognition in shell flux time series has proven difficult, raising questions...
Authors
Lukas Jonkers, Caitlin E. Reynolds, Julie N. Richey, Ian R. Hall
By
Ecosystems Land Change Science Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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The U.S. Geological Survey anchored a sediment trap in the northern Gulf of Mexico beginning in 2008 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 2012. Ten species, or varieties, constituted ~92 percent of the 2012 assemblage...
Authors
Caitlin E. Reynolds, Julie N. Richey, Richard Z. Poore
By
Ecosystems Land Change Science Program, St. Petersburg Coastal and Marine Science Center, Gulf of America
Sediment Trap in Gulf of America Recovered for the Last Time, Marking the Culmination of a 12-year Time Series of Climate Data Collection

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By understanding modern changes in temperature, and therefore past changes in the climate of the Gulf of America, scientists can better predict...

Read Article
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