MGTS 2015 LEG1

Type Oceanographic cruise
Set This cruise is part of the set MGTS
Ship Thalia
Ship owner Ifremer
Dates 02/03/2015 - 09/03/2015
Chief scientist(s) SCHAFER Jörg , COYNEL Alexandra

ENVIRONNEMENTS ET PALÉOENVIRONEMENTS OCÉANIQUES ET CONTINENTAUX (EPOC) - TALENCE

UMR CNRS 5805 EPOC - OASU - Université de Bordeaux

Bâtiment A12

351 Cours de la Libération

33405 TALENCE CEDEX

+33 (0)5 40 00 36 15

https://www.epoc.u-bordeaux.fr/
DOI 10.17600/15009300
Objective Biogeochemical research on the estuarine ecosystem of the Gironde River are societally motivated by the persistence of polymetallic which impacts the true economic potential of shellfish farming. The aim of this cruise is to provide reliable information about the possibility of developing shellfish farming in the Gironde in the context of decreasing metallic pollution. To do so, it is necessary to rank the processes determining the specification and mobility of metals by studying the possible interactions between dissolved, colloidal and particulate metals while completely including the plankton compartment and filter-feeder organisms (oysters). We proposed to check the net fluxes of Cd and Cu, and even those of V, Mo, U, Ni, and dissolved Co, previously established by Dabrin et al.'s model (2009), as well as to acquire new data to be used to estimate the possible differences with the Decazeville spring remediation plan (2007-2016). The decrease in cadmiferous pollution of the estuary must also be documented by recording the concentrations of cadmium carried by suspended matter from the Gironde River. Time logs of these concentrations will make it possible to characterize the system's resilience, and then draw up a calendar for sustainable development of shellfish farming in the Gironde to be initiated. As for the issues of organotin substances (TBT) identified in Gironde transition waters (AEAG journal, March 2012) we propose to verify this information and determine the biogeochemical consequences and, if possible, the causes.

Data managed by SISMER

Bibliography

Publications

Gil-Díaz Teba, Pougnet Frédérique, Dutruch Lionel, Schäfer Jörg, Coynel Alexandra. Reactivity and fluxes of antimony in a macrotidal estuarine salinity gradient: Insights from single and triple quadrupole ICP-MS performances. Marine Chemistry IN PRESS. Publisher's official version : https://doi.org/10.1016/j.marchem.2024.104465 , Open Access version : https://archimer.ifremer.fr/doc/00917/102885/


Gil-Díaz Teba, Pougnet Frédérique, Labassa Maëva, Dutruch Lionel, Abdou Melina, Coynel Alexandra, Eyrolle Frédérique, Briant NicolasORCID, Knoery JoëlORCID, Schäfer Jörg (2024). Reactivity and bioconcentration of stable cesium in a hyperturbid fluvial-estuarine continuum: A combination of field observations and geochemical modeling. Chemosphere, 359, 142266 (15p.). Publisher's official version : https://doi.org/10.1016/j.chemosphere.2024.142266 , Open Access version : https://archimer.ifremer.fr/doc/00889/100059/


Pougnet Frédérique, Gil-Díaz Teba, Blanc Gerard, Coynel Alexandra, Bossy Cécile, Schäfer Jörg (2022). Historical mass balance of cadmium decontamination trends in a major European continent-ocean transition system: Case study of the Gironde Estuary. Marine Environmental Research, 176, 105594 (11p.). Publisher's official version : https://doi.org/10.1016/j.marenvres.2022.105594 , Open Access version : https://archimer.ifremer.fr/doc/00755/86663/


Pougnet F., Blanc G, Mulamba-Guilhemat E., Coynel A., Gil-Diaz T., Bossy C., Strady E., Schäfer J. (2021). Nouveau modèle analytique pour une meilleure estimation des flux nets annuels en métaux dissous. Cas du cadmium dans l’estuaire de la Gironde / New computation for a better estimation of the annual dissolved metal net fluxes. The case of the cadmium in the Gironde estuary. Hydroécologie Appliquée, 21, 47-69. Publisher's official version : https://doi.org/10.1051/hydro/2019002 , Open Access version : https://archimer.ifremer.fr/doc/00485/59713/


Gil-Díaz Teba, Schäfer Jörg, Dutruch Lionel, Bossy Cécile, Pougnet Frédérique, Abdou Melina, Lerat-Hardy Antoine, Pereto Clément, Derriennic Hervé, Briant NicolasORCID, Sireau Teddy, Knoery JoelORCID, Blanc Gerard (2019). Tellurium behaviour in a major European fluvial–estuarine system (Gironde, France): fluxes, solid/liquid partitioning and bioaccumulation in wild oysters. Environmental Chemistry, 16(4), 229-242. Publisher's official version : https://doi.org/10.1071/EN18226 , Open Access version : https://archimer.ifremer.fr/doc/00505/61684/


Gil-Diaz Teba, Schaefer Joerg, Pougnet Frederique, Abdou Melina, Dutruch Lionel, Eyrolle-Boyer Frederique, Coynel Alexandra, Blanc Gerard (2016). Distribution and geochemical behaviour of antimony in the Gironde Estuary: A first qualitative approach to regional nuclear accident scenarios. Marine Chemistry, 185, 65-73. https://doi.org/10.1016/j.marchem.2016.02.002


Thesis using campaign data

Gil-Diaz Teba (2019). Comportement biogéochimique d'antimoine (Sb) et de tellure (Te) dans le milieu côtier : vers des scénarios de dispersion des radionucléides de Sb et de Te en cas de rejets accidentels de centrales nucléaires / Coastal biogeochemical behaviour of antimony (Sb) and tellurium (Te) : an approach to Sb and Te radionuclide dispersal scenarios in case of accidental nuclear power plant releases. PhD Thesis, Université de Bordeaux. https://archimer.ifremer.fr/doc/00607/71891/