2018
DOI: 10.5194/bg-2018-448
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Particulate trace metal dynamics in response to increased CO<sub>2</sub> and iron availability in a coastal mesocosm experiment

Abstract: <p><strong>Abstract.</strong> Rising concentrations of atmospheric carbon dioxide are causing ocean acidification and will influence marine processes and trace metal biogeochemistry. The importance of the combined impacts of elevated CO<sub>2</sub> and changes in trace metal availability on marine plankton remain largely unknown. A mesocosm experiment was performed to study changes in particulate trace metal concentrations during a bloom dom… Show more

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“…Fe; Öztürk et al ., 2002). High CO 2 , as well as the DFB addition elevated dFe concentration, and consequently increased Fe availability (see Segovia et al ., 2017; Lorenzo et al ., 2020 for further information). In the DFB treatments higher dFe concentrations were sustained, showing that DFB significantly increased the solubility of Fe, as previously reported (Chen et al ., 2004) and demonstrated in this experiment by the calculation of Fe partitioning coefficients of the molar ratio between particulate and dissolved concentrations (see Fig.…”
Section: Discussionmentioning
confidence: 99%
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“…Fe; Öztürk et al ., 2002). High CO 2 , as well as the DFB addition elevated dFe concentration, and consequently increased Fe availability (see Segovia et al ., 2017; Lorenzo et al ., 2020 for further information). In the DFB treatments higher dFe concentrations were sustained, showing that DFB significantly increased the solubility of Fe, as previously reported (Chen et al ., 2004) and demonstrated in this experiment by the calculation of Fe partitioning coefficients of the molar ratio between particulate and dissolved concentrations (see Fig.…”
Section: Discussionmentioning
confidence: 99%
“…In the DFB treatments higher dFe concentrations were sustained, showing that DFB significantly increased the solubility of Fe, as previously reported (Chen et al ., 2004) and demonstrated in this experiment by the calculation of Fe partitioning coefficients of the molar ratio between particulate and dissolved concentrations (see Fig. 4 in Lorenzo et al ., 2020). A bloom of the coccolithophore Emiliania huxleyi was observed in the ambient CO 2 treatments, and was especially massive in the presence of DFB (LC+DFB).…”
Section: Discussionmentioning
confidence: 99%
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