Articles | Volume 20, issue 15
https://doi.org/10.5194/bg-20-3329-2023
https://doi.org/10.5194/bg-20-3329-2023
Research article
 | 
11 Aug 2023
Research article |  | 11 Aug 2023

Short-term response of benthic foraminifera to fine-sediment depositional events simulated in microcosm

Corentin Guilhermic, Maria Pia Nardelli, Aurélia Mouret, Damien Le Moigne, and Hélène Howa

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Cited articles

Alve, E.: Colonization of new habitats by benthic foraminifera: a review, Earth-Sci. Rev., 46, 167–185, https://doi.org/10.1016/S0012-8252(99)00016-1, 1999. 
Alve, E.: Temporal variability in vertical distributions of live (stained) intertidal foraminifera, Southern England, J. Foramin. Res., 31, 12–24, https://doi.org/10.2113/0310012, 2001. 
Alve, E., Korsun, S., Schönfeld, J., Dijkstra, N., Golikova, E., Hess, S., Husum, K., and Panieri, G.: Foram-AMBI: A sensitivity index based on benthic foraminiferal faunas from North-East Atlantic and Arctic fjords, continental shelves and slopes, Mar. Micropaleontol., 122, 1–12, https://doi.org/10.1016/j.marmicro.2015.11.001, 2016. 
Anschutz, P., Jorissen, F. J., Chaillou, G., Abu-Zied, R., and Fontanier, C.: Recent turbidite deposition in the eastern Atlantic: Early diagenesis and biotic recovery, J. Mar. Res., 60, 835–854, https://doi.org/10.1357/002224002321505156, 2002. 
Barras, C., Jorissen, F. J., Labrune, C., Andral, B., and Boissery, P.: Live benthic foraminiferal faunas from the French Mediterranean Coast: Towards a new biotic index of environmental quality, Ecol. Ind., 36, 719–743, https://doi.org/10.1016/j.ecolind.2013.09.028, 2014. 
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Short summary
Coastal seas experience sediment discharges whose intensity and frequency can strongly be affected by human activities and climate change. We analysed the response of benthic species in an experimental set-up. After the burial under a single thick layer of sediment or multiple thin layers at different times, the analysed species migrate rapidly towards the surface. A stronger effect of a single thick deposit on standing stocks and biodiversity is visible compared to frequent low-sediment inputs.
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