Biogeosciences
Biogeosciences
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Articles | Volume 16, issue 19
Articles | Volume 16, issue 19
https://doi.org/10.5194/bg-16-3793-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-3793-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 19
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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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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