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Your search keyword '"Pringault, Olivier"' showing total 191 results
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191 results on '"Pringault, Olivier"'

1. Chapter Status of water quality and impact of dredging activities in four ports of the gulf of Aigues Mortes (France)

Author

Chouba, Cyrine, Causse, Léa, Marie, Mylène, DELPOUX, Sophie, FREYDIER, Rémi, Toubiana, Mylene, MONFORT, Patrick, Pringault, Olivier, and MONTIGNY, Chrystelle

Subjects
Marina, Dredging, Trace metal, thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment
Abstract

Marinas located at the land-sea interface, are both subject to autochthonous sources of pollution and form a receptacle for terrigenous inputs from upstream areas resulting in the qualitative degradation. The objective of this project is to carry out a diagnosis of the chemical and microbiological contamination of the waters of the 4 ports located in the Gulf of Aigues Mortes (France) concerning a mutualized dredging operation. The originality of the results lies in the fact that they will allow not only to compare the chemical and microbiological qualities of the waters of the marinas, but also to determine the impact of the same type of dredging on the resuspension of contaminants in the water column

Published
2022
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4. Contamination of planktonic food webs in the Mediterranean Sea: Setting the frame for the MERITE-HIPPOCAMPE oceanographic cruise (spring 2019)

Author

Tedetti, Marc, Tronczynski, Jacek, Carlotti, François, Pagano, Marc, Ismail, Sana Ben, Sammari, Cherif, Hassen, Malika Bel, Desboeufs, Karine, Poindron, Charlotte, Chifflet, Sandrine, Zouari, Amel Bellaaj, Abdennadher, Moufida, Amri, Sirine, Bănaru, Daniela, Abdallah, Lotfi Ben, Bhairy, Nagib, Boudriga, Ismail, Bourin, Aude, Brach-Papa, Christophe, Briant, Nicolas, Cabrol, Léa, Chevalier, Cristele, Chouba, Lassaad, Coudray, Sylvain, Yahia, Mohamed Nejib Daly, de Garidel-Thoron, Thibault, Dufour, Aurélie, Dutay, Jean-Claude, Espinasse, Boris, Fierro-González, Pamela, Fornier, Michel, Garcia, Nicole, Giner, Franck, Guigue, Catherine, Guilloux, Loïc, Hamza, Asma, Heimbürger-Boavida, Lars-Eric, Jacquet, Stéphanie, Knoery, Joel, Lajnef, Rim, Belkahia, Nouha Makhlouf, Malengros, Deny, Martinot, Pauline L., Bosse, Anthony, Mazur, Jean-Charles, Meddeb, Marouan, Misson, Benjamin, Pringault, Olivier, Quéméneur, Marianne, Radakovitch, Olivier, Raimbault, Patrick, Ravel, Christophe, Rossi, Vincent, Rwawi, Chaimaa, Hlaili, Asma Sakka, Tesán-Onrubia, Javier Angel, Thomas, Bastien, Thyssen, Melilotus, Zaaboub, Noureddine, and Garnier, Cédric

Published
2023
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17. Effects of copper and butyltin compounds on the growth, photosynthetic activity and toxin production of two HAB dinoflagellates: The planktonic Alexandrium catenella and the benthic Ostreopsis cf. ovata

Author

Couet, Douglas, Pringault, Olivier, Bancon-Montigny, Chrystelle, Briant, Nicolas, Elbaz Poulichet, Françoise, Delpoux, Sophie, Kefi-Daly Yahia, Ons, Hela, BenGharbia, Charaf, M’Rabet, Hervé, Fabienne, Rovillon, Georges, Amzil, Zouher, and Laabir, Mohamed

Published
2018
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24. Added Value of Water Column Spatiotemporal Monitoring to Assess Variability of Trace Metal Elements and Organotin Compounds in Mediterranean Harbours.

Author

Chouba, Cyrine, Pringault, Olivier, Domeau, Aurélien, Delpoux, Sophie, Causse, Léa, Marie, Mylène, Freydier, Rémi, and Montigny, Chrystelle

Subjects
TRACE metals, ORGANOTIN compounds, TRACE elements, HARBORS, COPPER, OCHRATOXINS
Abstract

Marinas are semi-enclosed environments characterised by reduced hydrodynamic energy, high sedimentation rates, and reduced oxygen levels. The ongoing development of activities and infrastructure construction are leading to deterioration in the quality of coastal aquatic environments, creating environmental risks. Trace metal elements (TMEs) and organotins are significant contaminants, prompting this study to evaluate the added value of spatiotemporal monitoring compared to one-time sediment assessments. Two Mediterranean harbours, Port Camargue (PC) and Port Carnon (C), differing in morphology and size, were monitored for a year with regular water sampling, focusing on TMEs and organotins. Sediment contamination, notably in the technical zone, revealed concentrations of Cu (309 and 1210 mg kg−1 for C and PC, respectively), Zn (242 and 425 mg kg−1 for C and PC, respectively), and tributyltin (TBT) (198 and 4678 µg (Sn) kg−1 for C and PC, respectively) surpassing the effect range medium (ERM), while other marina stations generally stayed below this threshold. Spatiotemporal water monitoring highlighted concentrations above environmental quality standards (EQS) at all stations of the larger marina. This exceedance was systematic for Cu and Zn in all samples, ranging respectively between 2.54 and 37.56 µg (Sn) L−1 and 0.63 and 33.48 µg (Sn) L−1. A notable temporal dynamic for TBT and Cu was also observed. Conversely, the open marina, connected to the open sea, rarely exhibited concentrations above EQS in water, despite sediment concentrations occasionally exceeding ERM values. This underscores that risk assessment in these ecosystems cannot rely solely on sediment characterisation. [ABSTRACT FROM AUTHOR]

Published
2024
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28. An Effect-Based Method to Evaluate Spatio-Temporal Variations of Coastal Marine DOM Properties.

Author

Dignan, Clara, Lenoble, Véronique, Pringault, Olivier, and Misson, Benjamin

Subjects
ORGANIC compound content of seawater, SPATIO-temporal variation, DISSOLVED organic matter, CARBON cycle
Abstract

Marine dissolved organic matter (DOM) is a key component of the global carbon cycle. While marine DOM properties are usually characterized by chemical approaches, an effort to integrate its variations in an ecological perspective is needed. Heterotrophic prokaryotes being the main consumers of marine DOM, targeting their responses to varying DOM properties provides an effect-based characterization of DOM properties. Dilution experiments of natural marine prokaryotic assemblages were used to assess the spatio-temporal heterogeneity of DOM properties in the coastal environment through its potential to stimulate heterotrophic prokaryotic growth. Reduced top-down pressures allowed to repeatedly evidence a stronger bottom-up stimulation potential of heterotrophic prokaryotes' net growth with DOM collected in harbours under strong human and continental influence compared to DOM collected in more open coastal sites. Shedding the light on high spatial heterogeneity of DOM properties that corresponded only partly to dissolved organic carbon concentrations, this experimental approach represents a simple and reproducible method to improve our understanding of the marine DOM cycle. [ABSTRACT FROM AUTHOR]

Published
2023
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48. Etude in vitro de l'impact de sediments artificiellement contamines par l'anthracene: effets sur les bacteries indigenes et les nematodes libres marins

Author

Said, Olfa Ben, Louati, Hela, Soltani, Amel, Mahmoudi, Ezzeddine, Cravo-Laureau, Cristiana, Pringault, Olivier, Duran, Robert, and Aissa, Patricia

Subjects
Nematoda -- Environmental aspects, Bioremediation -- Methods, Engineering and manufacturing industries
Abstract

This study evaluates the in vitro impact of three bioremediation techniques: biostimulation, bioaugmentation, and a combination of biostimulation and bioaugmentation on microflora and nematofauna after an artificial contamination of lagoon sediments by anthracene. This sediment contamination tends to reduce the average load in aerobic heterotrophic bacteria in the water column, at the sediment interface and at the same time induces a highly significant decrease in the average densities of nematodes in all microcosms contaminated by this pollutant. After inoculation with the Staphylococcus sp. bacterial strain, the increase in bacterial load was significant (p < 0.05) in the three compartments of anthracene-contaminated microcosms with relation to the controls. The addition of nitrates and phosphates to the contaminated microcosms generated a highly significant increase in the average concentration of free-living nematodes with relation to the controls. Key words: biostimulation, bioaugmentation, anthracene, bacteria, free-living marine nematodes. La presente etude se propose d'evaluer, in vitro, l'impact de trois techniques de bioremediation a savoir la biostimulation, la bioaugmentation et la combinaison de la biostimulation et de la bioaugmentation sur la microflore et la nematofaune apres une contamination artificielle des sediments lagunaires par l' anthracene. Cette contamination sedimentaire, tend a provoquer une reduction de la charge moyenne des bacteries heterotrophes aerobies dans la colonne d' eau, a l' interface et dans le sediment et en parallele une diminution hautement significative des densites moyennes des nematodes dans tous les microcosmes contamines par ce polluant. Apres inoculation de la souche bacterienne Staphylococcus sp., l'augmentation de la charge bacterienne a ete significative (p < 0,05) au niveau des trois compartiments dans les microcosmes contamines par l'anthracene par rapport aux temoins. L'ajout des nitrates et des phosphates aux microcosmes contamines a entraine, par rapport aux temoins, une augmentation tres significative des effectifs moyens de nematodes libres. Mots-cles : anthracene, bacteries, bioaugmentation, biostimulation, nematodes libres marins. [Journal translation], Introduction La presence dans les sediments marins de micropolluants ubiquistes et persistants comme les hydrocarbures aromatiques polycycliques (HAP) posent de reels problemes environnementaux (Choi et Oris 2003). En effet, leur [...]

Published
2012
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49. Drivers of change

Author

Cherif, Semia, Doblas-Miranda, Enrique, Lionello, Piero, Borrego, Carlos, Giorgi, Filippo, Rilov, Gil, Iglesias, Ana, Jebari, Sihem, Mahmoudi, Ezzeddine, Moriondo, Marco, Pringault, Olivier, Somot, Samuel, Tsikliras, Athanassios, Vilà, Montserrat, Zittis, George, Institut supérieur des sciences biologiques appliquées de Tunis = Higher Institute of Applied Biological Sciences of Tunis (ISSBAT), Université de Tunis El Manar (UTM), Centre for Ecological Research and Forestry Applications (CREAF), University of Salento [Lecce], Department of Environment and Planning (DAO), Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal, Abdus Salam International Centre for Theoretical Physics [Trieste] (ICTP), Israel Oceanographic and Limnological Research (IOLR), Universidad Politécnica de Madrid (UPM), Institut National de Recherche en Génie Rural Eaux et Forêts (INRGREF), Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Institution de la Recherche et de l'Enseignement Supérieur Agricoles [Tunis] (IRESA), Université de Carthage - University of Carthage, Institute of Bioeconomy (IBE), Consiglio Nazionale delle Ricerche (CNR), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Centre National de la Recherche Scientifique (CNRS), Aristotle University of Thessaloniki, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), The Cyprus Institute, Nicosia, Cyprus, Union for the Mediterranean (UfM) thanks to the financial support from the Swedish International Development Cooperation Agency (SIDA), United Nations Environment Programme / Mediterranean Action, Plan Bleu (Regional Activity Center of UNEP/MAP), Ministry of Foreign Affairs and Cooperation of the Principality of Monaco Plan, [Cramer W, Guiot J, Marini K (eds.)], University of Salento, Lecce, Italy, Universidad Politécnica de Madrid (UPM), Madrid, Spain, Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), National Institute of Oceanography, Israel Oceanographic and Limnological Research (IOLR), Haifa, Israel, Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS), Cramer W, Marini K, Institute for BioEconomy [Sesto Fiorentino] (IBE | CNR), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2020
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