Articles | Volume 16, issue 19
https://doi.org/10.5194/bg-16-3793-2019
https://doi.org/10.5194/bg-16-3793-2019
Ideas and perspectives
 | 
02 Oct 2019
Ideas and perspectives |  | 02 Oct 2019

Ideas and perspectives: Is dark carbon fixation relevant for oceanic primary production estimates?

Federico Baltar and Gerhard J. Herndl

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (03 Sep 2019) by Jack Middelburg
AR by Federico Baltar on behalf of the Authors (03 Sep 2019)  Author's response   Manuscript 
ED: Publish subject to technical corrections (09 Sep 2019) by Jack Middelburg
AR by Federico Baltar on behalf of the Authors (11 Sep 2019)  Manuscript 
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Short summary
Around half of the global primary production (PP) is produced in the ocean. Here we quantified how much oceanic PP estimates would increase if we included the dark DIC fixation rates (which are usually excluded in the carbon-14 method) into the PP estimation. We found that the inclusion of dark DIC fixation would increase PP estimates by 5–22 %. This represents ca. 1.2 to 11 Pg C yr−1 of newly synthesized organic carbon available for the marine food web.
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