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418 results on '"Cachot, Jérôme"'

18. Insights on Ecotoxicological Effects of Microplastics in Marine Ecosystems: The EPHEMARE Project

Author

Regoli, Francesco, Albentosa, Marina, Avio, Carlo Giacomo, Batel, Annika, Bebianno, Maria João, Bégout, Marie-Laure, Beiras, Ricardo, Bellas, Juan, Blust, Ronny, Bour, Agathe, Braunbeck, Thomas, Cachot, Jérôme, Carteny, Camilla Catarci, Cormier, Bettie, Cousin, Xavier, Cuesta, Alberto, Esteban, María Ángeles, Faimali, Marco, Gambardella, Chiara, Garaventa, Francesca, Gorbi, Stefania, Guilhermino, Lúcia, Hylland, Ketil, Keiter, Steffen H., Kopke, Kathrin, Morin, Bénédicte, Pacheco, Alexandre, Pittura, Lucia, Town, Raewyn M., Vieira, Luis R., Kostianoy, Andrey, Series Editor, Cocca, Mariacristina, editor, Di Pace, Emilia, editor, Errico, Maria Emanuela, editor, Gentile, Gennaro, editor, Montarsolo, Alessio, editor, Mossotti, Raffaella, editor, and Avella, Maurizio, editor

Published
2020
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19. Microplastic Contamination of Sediment and Water Column in the Seine River Estuary

Author

Alligant, Soline, Gasperi, Johnny, Gangnery, Aline, Maheux, Frank, Simon, Benjamin, Halm-Lemille, Marie-Pierre, El Rakwe, Maria, Dreanno, Catherine, Cachot, Jérôme, Tassin, Bruno, Kostianoy, Andrey, Series Editor, Cocca, Mariacristina, editor, Di Pace, Emilia, editor, Errico, Maria Emanuela, editor, Gentile, Gennaro, editor, Montarsolo, Alessio, editor, Mossotti, Raffaella, editor, and Avella, Maurizio, editor

Published
2020
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29. Health indicators and contaminant levels of a critically endangered species in the Gironde estuary, the European sturgeon

Author

Acolas, Marie-Laure, Davail, Blandine, Gonzalez, Patrice, Jean, Séverine, Clérandeau, Christelle, Morin, Bénédicte, Gourves, Pierre-Yves, Daffe, Guillemine, Labadie, Pierre, Perrault, Annie, Lauzent, Mathilde, Pierre, Maud, Le Barh, Romaric, Baudrimont, Magalie, Peluhet, Laurent, Le Menach, Karyn, Budzinski, Hélène, Rochard, Eric, and Cachot, Jérôme

Published
2020
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32. Integrated monitoring of chemicals and their effects on four sentinel species, Limanda limanda, Platichthys flesus, Nucella lapillus and Mytilus sp., in Seine Bay: A key step towards applying biological effects to monitoring

Author

Burgeot, Thierry, Akcha, Farida, Ménard, Dominique, Robinson, Craig, Loizeau, Véronique, Brach-Papa, Christophe, Martínez-Gòmez, Concepción, Le Goff, Jérémie, Budzinski, Hélène, Le Menach, Karine, Cachot, Jérome, Minier, Christophe, Broeg, Katja, and Hylland, Ketil

Published
2017
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35. Application of a multidisciplinary and integrative weight-of-evidence approach to a 1-year monitoring survey of the Seine River

Author

Barjhoux, Iris, Fechner, Lise C., Lebrun, Jérémie D., Anzil, Adriana, Ayrault, Sophie, Budzinski, Hélène, Cachot, Jérôme, Charron, Laetitia, Chaumot, Arnaud, Clérandeau, Christelle, Dedourge-Geffard, Odile, Faburé, Juliette, François, Adeline, Geffard, Olivier, George, Isabelle, Labadie, Pierre, Lévi, Yves, Munoz, Gabriel, Noury, Patrice, Oziol, Lucie, Quéau, Hervé, Servais, Pierre, Uher, Emmanuelle, Urien, Nastassia, and Geffard, Alain

Published
2018
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37. A protocol for lixiviation of micronized plastics for aquatic toxicity testing

Author

Almeda, Rodrigo, Kuddithamby, Gunaalan, Alonso-Lópeza, Olalla, Vilas, Alejandro, Christelle, Clérandeau, Loisel, Tara, Nielsen, Torkel Gissel, Cachot, Jérôme, Beiras, Ricardo, Almeda, Rodrigo, Kuddithamby, Gunaalan, Alonso-Lópeza, Olalla, Vilas, Alejandro, Christelle, Clérandeau, Loisel, Tara, Nielsen, Torkel Gissel, Cachot, Jérôme, and Beiras, Ricardo

Abstract

Plastics contain various types and amounts of additives that can leach into the water column when entering aquatic ecosystems. Some leached plastic additives are hazardous to marine biota at environmentally relevant concentrations. Disparate methodological approaches have been adopted for toxicity testing of plastic leachates, making comparison difficult. Here we propose a protocol to standardize the methodology to obtain leachates from microplastics (MPs) for aquatic toxicity testing. Literature reviewing and toxicity tests using marine model organisms and different types of MPs were conducted to define the main methodological aspects of the protocol. Acute exposure to leachates from the studied plastics caused negative effects on the early life stages of sea urchins and marine bacteria. We provide recommendations of key factors influencing MPs lixiviation, such as MP size (

Published
2023

41. Swimming Behavior and Acetylcholinesterase Activity of the D-Larvae of the Mediterranean Mussel Mytilus Galloprovincialis Exposed to Copper and/or Silver at Different Temperatures

Author

Boukadida, Khouloud, Cachot, Jérôme, Ramirez, Alicia Romero, Clérandeau, Christelle, Banni, Mohamed, Abdalla, Hassan, Series editor, Abdul Mannan, Md., Series editor, Alalouch, Chaham, Series editor, Attia, Sahar, Series editor, Boemi, Sofia Natalia, Series editor, Bougdah, Hocine, Series editor, Bozonnet, Emmanuel, Series editor, De Bonis, Luciano, Series editor, Hawkes, Dean, Series editor, Kostopoulou, Stella, Series editor, Mahgoub, Yasser, Series editor, Mesbah Elkaffas, Saleh, Series editor, Mohareb, Nabil, Series editor, O. Gawad, Iman, Series editor, Oostra, Mieke, Series editor, Pignatta, Gloria, Series editor, Pisello, Anna Laura, Series editor, Rosso, Federica, Series editor, Kallel, Amjad, editor, Ksibi, Mohamed, editor, Ben Dhia, Hamed, editor, and Khélifi, Nabil, editor

Published
2018
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48. Degradation and ecotoxicity of new and used fishing nets. First results of a research project in the south-eastern Bay of Biscay

Author

Dusacre, Edgar, Ekoja, Faith, Gonthier, Camille, Llech, Camille, Clérandeau, Christelle, Lecomte, Sophie, Morin, Bénédicte, Lagarde, Fabienne, Cajaraville, Miren P., and Cachot, Jérôme

Subjects
Fishing nets / Degradation / Ecotoxicity / Additives
Abstract

After more than 30 years of research on plastic pollution, data on sources and ecotoxicity are still fragmentary. Several studies have suggested that fishing gear (FG) is a major source of secondary micro and nanoplastics (MNPs). In this context, we focused our research on the MNPs and additives coming from the degradation of plastic FG during their life cycle, especially those used in the south-eastern Bay of Biscay (BoB) (PLASFITO project). First, a protocol using UV irradiation and water agitation was set up to artificially age fishing nets (FNs). Then the Microtox® test using the marine bacteria Aliivibrio fischeri was conducted to screen the ecotoxicity of FN leachates. The study was conducted on three conventional gillnets made of polyamide (PA) with different additive compositions, one in-development gillnet made of bio-sourced and biodegradable polybutylene succinate (PBS), and one polyethylene (PE) trawl net. Each experiment was conducted on new and used FNs. Artificial ageing caused structural and morphological modifications of the polymers, revealed by FTIR-ATR, RAMAN and SEM, and induced the release of MNPs into the water. The produced particles were not only fibres, as expected, but were mainly micro fragments. The degradation kinetics differed between FNs depending on the different polymers and especially on the additives´ composition. Results of the Microtox® test revealed significant toxicity of some FNs' leachates (PA and PBS). However, because the effects on Aliivibrio fischeri were not the same for all the PA FNs, we assume that the toxicity depended on the additives' composition and also on the wear of the FNs. The emphasis on the environmental toxicity of new ready-for-use FNs and the possible major role of additives raise concerns about the potential risks of certain FNs for marine organisms. Experiments are underway to better understand the overall contribution of these FNs to marine plastic pollution. Also see: https://micro2022.sciencesconf.org/427248/document, In MICRO 2022, Online Atlas Edition: Plastic Pollution from MACRO to nano

Published
2022
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49. Distribution and dynamic of anthropogenic microparticles and microplastics: A multi-compartment approach

Author

Lefebvre, Charlotte, Le Bihanic, Florane, Clerandeau, Christelle, Lecomte, Sophie, and Cachot, Jérôme

Subjects
spatial distribution, coastal lagoon, marine compartments, microplastic
Abstract

Assessment of microplastic (MP) contamination is still needed to evaluate this threat and tackle this issue correctly. Here, MP and anthropogenic microparticles (AP) contamination was assessed in the Arcachon Bay, a meso-tidal embayment of the Atlantic coast of France. Studied sites were located outside the bay (ocean) and inside the bay (from the inlet to the back). Sea surface, water column, intertidal sediments and wild oysters (M. gigas) were sampled at different sites. A distinction was made between all AP (i.e. visually sorted) and MP (i.e. confirmed by ATR-FTIR spectroscopy). AP and MP were found at all sites from all sample types. Sea surface and water column displayed spatial variations for AP and MP concentrations while sediment and oyster samples did not. Regarding concentration for instance, samples from sea surface and water column, AP and MP displayed from low to high concentrations at oceanic stations while at the back of the bay concentrations were systematically among the lowest. However, the inlet of the bay displayed a particular pattern with high concentrations at sea surface and low ones in the water column. All these differences were probably due to the hydrodynamic within each compartment at each zone of the bay. Moreover, general patterns can be suggested to understand the distribution between compartments. Fragments and buoyant particles were mainly detected at sea surface while fibers and negatively buoyant particles were rather described in other compartments. These results strengthen the hypothesis that particle characteristics influence their behavior and their transport from one compartment to another. Overall, this study helps in understanding the spatial distribution and dynamic of AP and MP within four types of marine samples. Also see: https://micro2022.sciencesconf.org/427012/document, In MICRO 2022, Online Atlas Edition: Plastic Pollution from MACRO to nano

Published
2022
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