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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 5
Biogeosciences, 15, 1469-1482, 2018
https://doi.org/10.5194/bg-15-1469-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 1469-1482, 2018
https://doi.org/10.5194/bg-15-1469-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 Mar 2018

Research article | 09 Mar 2018

Calcification in a marginal sea – influence of seawater [Ca2+] and carbonate chemistry on bivalve shell formation

Jörn Thomsen et al.
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Revised manuscript accepted for BG
Cited articles  
Bach, L. T.: Reconsidering the role of carbonate ion concentration in calcification by marine organisms, Biogeosciences, 12, 4939–4951, https://doi.org/10.5194/bg-12-4939-2015, 2015. 
Barott, K. L., Perez, S. O., Linsmayer, L. B., and Tresguerres, M.: Differential localization of ion transporters suggests distinct cellular mechanisms for calcification and photosynthesis between two coral species, Am. J. Physiol.-Reg. I., 309, R235–R246, 2015. 
Barton, A., Hales, B., Waldbusser, G. G., Langdon, C., and Felly, R. A.: The Pacific oyster Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near-term ocean acidification effects, Limnol. Oceanogr., 57, 698–710, 2012. 
Beldowski, J., Löffler, A., and Joensuu, L.: Distribution and biogeochemical control of total CO2 and total alkalinity in the Baltic Sea, J. Marine Syst., 81, 252–259, 2010. 
Blaustein, M. P. and Lederer, W. J.: Sodium/Calcium Exchange: Its physiological implications, Physiol. Rev., 79, 763–854, 1999. 
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The distribution of mussel in estuaries is limited but the mechanisms are not well understood. We document for the first time that reduced Ca2+ concentration in the low saline, brackish Baltic Sea affects the ability of mussel larvae to calcify the first larval shell. As complete formation of the shell is a prerequisite for successful development, impaired calcification during this sensitive life stage can have detrimental effects on the species' ability to colonize habitats.
The distribution of mussel in estuaries is limited but the mechanisms are not well understood....
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