Articles | Volume 18, issue 5
Biogeosciences, 18, 1873–1891, 2021
https://doi.org/10.5194/bg-18-1873-2021
Biogeosciences, 18, 1873–1891, 2021
https://doi.org/10.5194/bg-18-1873-2021

Research article 18 Mar 2021

Research article | 18 Mar 2021

A 2-decade (1988–2009) record of diatom fluxes in the Mauritanian coastal upwelling: impact of low-frequency forcing and a two-step shift in the species composition

Oscar E. Romero et al.

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Short summary
Upwelling intensity along NW Africa varies on the interannual to decadal timescale. Understanding its changes is key for the prediction of future changes of CO2 sequestration in the northeastern Atlantic. Based on a multiyear (1988–2009) sediment trap experiment at the site CBmeso, fluxes and the species composition of the diatom assemblage are presented. Our data help in establishing the scientific basis for forecasting and modeling future states of this ecosystem and its decadal changes.
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