Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
BG | Volume 16, issue 22
Biogeosciences, 16, 4411–4428, 2019
https://doi.org/10.5194/bg-16-4411-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 16, 4411–4428, 2019
https://doi.org/10.5194/bg-16-4411-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 20 Nov 2019

Research article | 20 Nov 2019

Net heterotrophy and carbonate dissolution in two subtropical seagrass meadows

Bryce R. Van Dam et al.

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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 (26 Jul 2019) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (26 Jul 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (26 Jul 2019) by Jack Middelburg
RR by Anonymous Referee #1 (07 Aug 2019)
RR by Anonymous Referee #2 (18 Aug 2019)
ED: Reconsider after major revisions (26 Aug 2019) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (26 Sep 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (30 Sep 2019) by Jack Middelburg
RR by Anonymous Referee #1 (03 Oct 2019)
ED: Publish subject to minor revisions (review by editor) (05 Oct 2019) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (08 Oct 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (11 Oct 2019) by Jack Middelburg
Publications Copernicus
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Short summary
We report on direct measurements of net ecosystem productivity (NEP) and net ecosystem calcification (NEC) in a Florida Bay seagrass ecosystem. We found notable differences between our carbon-based NEP and similar determinations made using oxygen. Over the study period, both NEP and NEC were negative, revealing that these sites are net heterotrophic and have dissolved CaCO3. Our findings point to sediments maintaining negative NEP and NEC despite high seagrass above-ground primary production.
We report on direct measurements of net ecosystem productivity (NEP) and net ecosystem...
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