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Article Dans Une Revue Marine Pollution Bulletin Année : 2018

Improving the monitoring of a dumping site in a dynamic environment. Example of the Octeville site (Bay of Seine, English Channel)

Anne Murat
Khadija Beryouni
  • Fonction : Auteur
Noémie Baux
Jean-Claude Dauvin

Résumé

Dredged sediments have different physical and chemical characteristics compared with the sediments in place, which generates multiple effects on the environment. In this study, we show that the sampling strategy used to monitor the effects of dredge spoil deposition on the surrounding environment can lead to different interpretations. It appears that sediment sample replicates may or may not be necessary, depending on the studied area, the prevailing environmental forcings before sediment sampling and the combination of these two factors. The proposed modus operandi allows us to optimize both the confidence on the obtained results and the cost of the sediment studies (sampling and laboratory analyses). The results are based on the sediment fine fraction, which is considered as a key environmental component due, for example, to its strong association with the structure of benthic faunal communities as well as its role in the build-up of pollutants.
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Dates et versions

hal-01691947 , version 1 (24-01-2018)

Identifiants

Citer

Yann Méar, Emmanuel Poizot, Anne Murat, Khadija Beryouni, Noémie Baux, et al.. Improving the monitoring of a dumping site in a dynamic environment. Example of the Octeville site (Bay of Seine, English Channel). Marine Pollution Bulletin, 2018, 129 (2), pp.425-437. ⟨10.1016/j.marpolbul.2017.10.011⟩. ⟨hal-01691947⟩
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