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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Latest update: 04 Dec 2021
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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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