Articles | Volume 19, issue 4
https://doi.org/10.5194/bg-19-1047-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-1047-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Feb 2022
Research article |
| 17 Feb 2022
| 17 Feb 2022
Growth rate rather than temperature affects the B∕Ca ratio in the calcareous red alga Lithothamnion corallioides
Giulia Piazza
CORRESPONDING AUTHOR
Department of Earth and Environmental Sciences, University of
Milano–Bicocca, CoNISMa
Research Unit of Milano–Bicocca, Piazza della Scienza 4, 20126 Milan, Italy
Department of Earth and Ocean Dynamics, University of Barcelona,
Martí i Franquès s/n, 08028 Barcelona, Spain
Valentina A. Bracchi
Department of Earth and Environmental Sciences, University of
Milano–Bicocca, CoNISMa
Research Unit of Milano–Bicocca, Piazza della Scienza 4, 20126 Milan, Italy
Antonio Langone
CNR – Institute of Geosciences and Earth Resources, Via Ferrata 1,
27100 Pavia, Italy
Agostino N. Meroni
Department of Civil and Environmental Engineering, Politecnico of
Milan, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
Daniela Basso
Department of Earth and Environmental Sciences, University of
Milano–Bicocca, CoNISMa
Research Unit of Milano–Bicocca, Piazza della Scienza 4, 20126 Milan, Italy
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Short summary
The coralline alga Lithothamnion corallioides is widely distributed in the Mediterranean Sea and NE Atlantic Ocean, where it constitutes rhodolith beds, which are diversity-rich ecosystems on the seabed. The boron incorporated in the calcified thallus of coralline algae (B/Ca) can be used to trace past changes in seawater carbonate and pH. This paper suggests a non-negligible effect of algal growth rate on B/Ca, recommending caution in adopting this proxy for paleoenvironmental reconstructions.
The coralline alga Lithothamnion corallioides is widely distributed in the Mediterranean Sea and...
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