Articles | Volume 18, issue 8
Research article
22 Apr 2021
Research article |  | 22 Apr 2021

Decoupling salinity and carbonate chemistry: low calcium ion concentration rather than salinity limits calcification in Baltic Sea mussels

Trystan Sanders, Jörn Thomsen, Jens Daniel Müller, Gregor Rehder, and Frank Melzner


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (10 Feb 2021) by Jean-Pierre Gattuso
AR by Trystan Sanders on behalf of the Authors (17 Mar 2021)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Mar 2021) by Jean-Pierre Gattuso
RR by Laura Ramajo (26 Mar 2021)
ED: Publish as is (26 Mar 2021) by Jean-Pierre Gattuso
Short summary
The Baltic Sea is expected to experience a rapid drop in salinity and increases in acidity and warming in the next century. Calcifying mussels dominate Baltic Sea seafloor ecosystems yet are sensitive to changes in seawater chemistry. We combine laboratory experiments and a field study and show that a lack of calcium causes extremely slow growth rates in mussels at low salinities. Subsequently, climate change in the Baltic may have drastic ramifications for Baltic seafloor ecosystems.
Final-revised paper