Articles | Volume 23, issue 18
https://doi.org/10.5194/bg-23-6447-2026
https://doi.org/10.5194/bg-23-6447-2026
Research article
 | 
17 Sep 2026
Research article |  | 17 Sep 2026

Towards circularity in shellfish aquaculture: stimulating mussel shell dissolution in marine sediments

Cedric Goossens, Steven Bouillon, Filip J. R. Meysman, and Sebastiaan J. van de Velde

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Short summary
Shell growth in bivalve aquaculture removes ocean alkalinity, leading to CO2 emissions. Here, we explore a circular solution by crushing shell waste and distributing it into coastal sediments, where its dissolution releases alkalinity that can compensate these emissions. Laboratory experiments showed substantial shell dissolution and alkalinity production, highlighting the potential for aquaculture circularity under suitable sediment conditions.
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