Articles | Volume 17, issue 9
Biogeosciences, 17, 2425–2440, 2020
https://doi.org/10.5194/bg-17-2425-2020
Biogeosciences, 17, 2425–2440, 2020
https://doi.org/10.5194/bg-17-2425-2020

Research article 05 May 2020

Research article | 05 May 2020

Macroalgal metabolism and lateral carbon flows can create significant carbon sinks

Kenta Watanabe et al.

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Latest update: 20 Sep 2021
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Short summary
Macroalgal beds are among the vegetated coastal ecosystems that take up atmospheric CO2. We investigated the relationships between macroalgal metabolism and inorganic and organic carbon fluxes in a temperate macroalgal bed during the productive time of year. The macroalgal metabolism formed water with low CO2 and high dissolved organic carbon concentrations that was then exported offshore. This export process potentially enhances CO2 uptake in and around macroalgal beds.
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