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Volume 12, issue 1
Biogeosciences, 12, 223–235, 2015
https://doi.org/10.5194/bg-12-223-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 223–235, 2015
https://doi.org/10.5194/bg-12-223-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 13 Jan 2015

Research article | 13 Jan 2015

Upper ocean mixing controls the seasonality of planktonic foraminifer fluxes and associated strength of the carbonate pump in the oligotrophic North Atlantic

K. H. Salmon et al.

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Cited articles

Anand P., Elderfield, H, and Conte, M. H.: Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series, Paleoceanography, 18, 1050, https://doi.org/10.1029/2002PA000846, 2003.
Barker, S. and Elderfield, H.: Foraminiferal calcification response to Glacial-Interglacial changes in Atmospheric CO2, Science, 297, 833–836, 2002.
Bates, N. R.: Interannual variability of the oceanic CO2 sink in the subtropical gyre of the North Atlantic Ocean over the last 2 decades, J. Geophys. Res., 112, C09013, https://doi.org/10.1029/2006JC003759, 2007.
Bates, N. R.: Multi-decadal uptake of carbon dioxide into subtropical mode water of the North Atlantic Ocean, Biogeosciences, 9, 2649–2659, https://doi.org/10.5194/bg-9-2649-2012, 2012.
Bates, N. R. and Hansell, D. A.: Temporal variability of excess nitrate in the subtropical mode water of the North Atlantic Ocean, Mar. Chem., 84, 225–241, 2004.
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Planktonic foraminifera are an important component of the marine carbon/carbonate cycle, yet the environmental controls on their abundances are still debated. In our study, we see larger foraminifera fluxes, particularly of heavy species, during winter when nutrients are mixed into the surface waters or during eddy mixing. Climatic factors that control mixing could therefore control the flux of planktonic foraminfera and the carbon/carbonate flux on seasonal and decadal timescales.
Planktonic foraminifera are an important component of the marine carbon/carbonate cycle, yet the...
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