Articles | Volume 15, issue 21
Biogeosciences, 15, 6537–6557, 2018
https://doi.org/10.5194/bg-15-6537-2018
Biogeosciences, 15, 6537–6557, 2018
https://doi.org/10.5194/bg-15-6537-2018

Research article 07 Nov 2018

Research article | 07 Nov 2018

Carbon and nitrogen turnover in the Arctic deep sea: in situ benthic community response to diatom and coccolithophorid phytodetritus

Ulrike Braeckman et al.

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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) (17 Oct 2018) by Hiroshi Kitazato
AR by Ulrike Braeckman on behalf of the Authors (17 Oct 2018)  Author's response    Manuscript
ED: Publish as is (22 Oct 2018) by Hiroshi Kitazato
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Short summary
Global warming has altered Arctic phytoplankton communities, with unknown effects on deep-sea communities that depend strongly on food produced at the surface. We compared the responses of Arctic deep-sea benthos to input of phytodetritus from diatoms and coccolithophorids. Coccolithophorid carbon was 5× less recycled than diatom carbon. The utilization of the coccolithophorid carbon may be less efficient, so a shift from diatom to coccolithophorid blooms could entail a delay in carbon cycling.
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