Articles | Volume 21, issue 1
https://doi.org/10.5194/bg-21-145-2024
https://doi.org/10.5194/bg-21-145-2024
Research article
 | 
09 Jan 2024
Research article |  | 09 Jan 2024

A step towards measuring connectivity in the deep sea: elemental fingerprints of mollusk larval shells discriminate hydrothermal vent sites

Vincent Mouchi, Christophe Pecheyran, Fanny Claverie, Cécile Cathalot, Marjolaine Matabos, Yoan Germain, Olivier Rouxel, Didier Jollivet, Thomas Broquet, and Thierry Comtet

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Cited articles

Abreu, I. A. and Cabelli, D. E.: Superoxide dismutases – a review of the metal-associated mechanistic variations, BBA-Proteins Proteom., 1804, 263–274, https://doi.org/10.1016/j.bbapap.2009.11.005, 2010. 
Adams, D., Arellano, S., and Govenar, B.: Larval Dispersal: Vent Life in the Water Column, Oceanography, 25, 256–268, https://doi.org/10.5670/oceanog.2012.24, 2012. 
Amante, C. and Eakins, B. W.: ETOPO1 Global Relief Model converted to PanMap layer format, https://doi.org/10.1594/PANGAEA.769615, 2009. 
Baco, A. R., Etter, R. J., Ribeiro, P. A., Heyden, S., Beerli, P., and Kinlan, B. P.: A synthesis of genetic connectivity in deep-sea fauna and implications for marine reserve design, Mol. Ecol., 25, 3276–3298, https://doi.org/10.1111/mec.13689, 2016. 
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Short summary
The impact of deep-sea mining will depend critically on the ability of larval dispersal of hydrothermal mollusks to connect and replenish natural populations. However, assessing connectivity is extremely challenging, especially in the deep sea. Here, we investigate the potential of using the chemical composition of larval shells to discriminate larval origins between multiple hydrothermal sites in the southwest Pacific. Our results confirm that this method can be applied with high accuracy.
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