Articles | Volume 12, issue 20
Biogeosciences, 12, 6251–6258, 2015
https://doi.org/10.5194/bg-12-6251-2015
Biogeosciences, 12, 6251–6258, 2015
https://doi.org/10.5194/bg-12-6251-2015

Research article 30 Oct 2015

Research article | 30 Oct 2015

Radiocarbon isotopic evidence for assimilation of atmospheric CO2 by the seagrass Zostera marina

K. Watanabe and T. Kuwae

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (25 Aug 2015) by Christoph Heinze
AR by Kenta Watanabe on behalf of the Authors (26 Aug 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (26 Aug 2015) by Christoph Heinze
RR by Anonymous Referee #3 (11 Sep 2015)
RR by Anonymous Referee #2 (11 Sep 2015)
ED: Reconsider after major revisions (18 Sep 2015) by Christoph Heinze
AR by Kenta Watanabe on behalf of the Authors (16 Oct 2015)  Author's response    Manuscript
ED: Publish as is (20 Oct 2015) by Christoph Heinze
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Short summary
Our empirical study demonstrates the quantitative evidence of assimilating atmospheric modern CO2 by the seagrass Zostera marina, by analyzing the radiocarbon isotope concentrations (Δ14C) of both the seagrass and two carbon sources in a brackish lagoon. CO2 exchange between the air and water would occur at the very thin film of water over the air-exposed seagrass leaves. Our finding offers better understanding of the role of seagrass meadows in global coastal carbon dynamics.
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