Articles | Volume 17, issue 2
https://doi.org/10.5194/essd-17-799-2025
https://doi.org/10.5194/essd-17-799-2025
Data description paper
 | 
03 Mar 2025
Data description paper |  | 03 Mar 2025

Bivalve monitoring over French coasts: multi-decadal records of carbon and nitrogen elemental and isotopic ratios as ecological indicators of global change

Camilla Liénart, Alan Fournioux, Andrius Garbaras, Hugues Blanchet, Nicolas Briant, Stanislas F. Dubois, Aline Gangnery, Anne Grouhel Pellouin, Pauline Le Monier, Arnaud Lheureux, Xavier de Montaudouin, and Nicolas Savoye

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Cited articles

Amiard, J. C., Amiard-Triquet, C., Barka, S., Pellerin, J., and Rainbow, P. S.: Metallothioneins in aquatic invertebrates: Their role in metal detoxification and biomonitoring., Aquat. Toxicol., 76, 160–202, https://doi.org/10.1016/j.aquatox.2005.08.015, 2006. 
Bauer, J. E., Cai, W.-J., Raymond, P., Bianchi, T. S., Hopkinson, C. S., and Regnier, P. G.: The changing carbon cycle of the coastal ocean, Nature, 504, 61–70, https://doi.org/10.1038/nature12857, 2013. 
Briand, M. J., Herlory, O., Briant, N., Brach-Papa, C., Boissery, P., and Bouchoucha, M.: The French Mussel Watch: More than two decades of chemical contamination survey in Mediterranean coastal waters, Mar. Pollut. Bull., 191, 114901, https://doi.org/10.1016/j.marpolbul.2023.114901, 2023. 
Briant, N., Savoye, N., Chouvelon, T., David, V., Rodriguez, S., Charlier, K., Sonke, J. E., Chiffoleau, J. F., Brach-Papa, C., and Knoery J.: Carbon and nitrogen elemental and isotopic ratios of filter-feeding bivalves along the French coasts: An assessment of specific, geographic, seasonal and multi-decadal variations, Sci. Total Environ., 613–614, 196–207, https://doi.org/10.1016/j.scitotenv.2017.08.281, 2018. 
Cabral, H., Fonseca, V., Sousa, T., and Leal, M. C.: Synergistic effects of climate change and marine pollution: An overlooked interaction in coastal and estuarine areas, Int. J. Environ. Res. Publ. Health, 16, 1–17, https://doi.org/10.3390/ijerph16152737, 2019. 
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Short summary
Bivalves such as mussels and oysters reflect the quality of the environment by filtering ambient water. We measured carbon and nitrogen chemical composition in bivalve tissues from 33 sites along French coastlines sampled since the 1980s. Thanks to such time series, this dataset allows us to track how marine species record changing climate, physical–chemical environment, and organic matter cycles and provide precious information on the coastal ecosystem response to global change.
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