Articles | Volume 21, issue 24
https://doi.org/10.5194/bg-21-5685-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-5685-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Dec 2024
Research article |
| 19 Dec 2024
| 19 Dec 2024
High metabolic zinc demand within native Amundsen and Ross sea phytoplankton communities determined by stable isotope uptake rate measurements
Riss M. Kell
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Gloucester Marine Genomics Institute, Gloucester, MA 01930-3006, USA
previously published under the name Riss Kellogg
Rebecca J. Chmiel
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Deepa Rao
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Dawn M. Moran
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Matthew R. McIlvin
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Tristan J. Horner
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Nicole L. Schanke
Hollings Marine Laboratory, College of Charleston, Charleston, SC 29412, USA
Ichiko Sugiyama
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Robert B. Dunbar
Doerr School of Sustainability, Stanford University, Stanford, CA 94305, USA
Giacomo R. DiTullio
Hollings Marine Laboratory, College of Charleston, Charleston, SC 29412, USA
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
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Despite interest in modeling the biogeochemical uptake and cycling of the trace metal zinc (Zn), measurements of Zn uptake in natural marine phytoplankton communities have not been conducted previously. To fill this gap, we employed a stable isotope uptake rate measurement method to quantify Zn uptake into natural phytoplankton assemblages within the Southern Ocean. Zn demand was high and rapid enough to depress the inventory of Zn available to phytoplankton on seasonal timescales.
Despite interest in modeling the biogeochemical uptake and cycling of the trace metal zinc (Zn),...
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