Articles | Volume 17, issue 1
Biogeosciences, 17, 35–45, 2020
https://doi.org/10.5194/bg-17-35-2020
Biogeosciences, 17, 35–45, 2020
https://doi.org/10.5194/bg-17-35-2020

Research article 03 Jan 2020

Research article | 03 Jan 2020

Arctic (Svalbard islands) active and exported diatom stocks and cell health status

Susana Agustí et al.

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Latest update: 19 Sep 2021
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Short summary
We found that 24 % of the total diatoms community in the Arctic water column (450 m depth) was located below the photic layer. Healthy diatom communities in active spring–bloom stages remained in the photic layer. Dying diatom communities exported a large fraction of the biomass to the aphotic zone, fuelling carbon sequestration and benthic ecosystems in the Arctic. The results of the study conform to a conceptual model where diatoms grow during the bloom until silicic acid stocks are depleted.
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