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Chemicals sorbed to environmental microplastics are toxic to early life stages of aquatic organisms 5
Cormier, Bettie; Gambardella, Chiara; Tato, Tania; Perdriat, Quentin; Costa, Elisa; Veclin, Cloé; Le Bihanic, Florane; Grassl, Bruno; Dubocq, Florian; Kärrman, Anna; Van Arkel, Kim; Lemoine, Soazig; Lagarde, Fabienne; Morin, Benedicte; Garaventa, Francesca; Faimali, Marco; Cousin, Xavier; Bégout, Marie-laure; Beiras, Ricardo; Cachot, Jerome.
Microplastics are ubiquitous in aquatic ecosystems, but little information is currently available on the dangers and risks to living organisms. In order to assess the ecotoxicity of environmental microplastics (MPs), samples were collected from the beaches of two islands in the Guadeloupe archipelago, Petit-Bourg (PB) located on the main island of Guadeloupe and Marie-Galante (MG) on the second island of the archipelago. These samples have a similar polymer composition with mainly polyethylene (PE) and polypropylene (PP). However, these two samples are very dissimilar with regard to their contamination profile and their toxicity. MPs from MG contain more lead, cadmium and organochlorine compounds while those from PB have higher levels of copper, zinc and...
Tipo: Text Palavras-chave: Environmental microplastics; Leachates; Early life stages; Aquatic organisms; Toxicity.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00661/77276/78711.pdf
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Constraints and Priorities for Conducting Experimental Exposures of Marine Organisms to Microplastics 5
Paul-pont, Ika; Tallec, Kevin; Gonzalez-fernandez, Carmen; Lambert, Christophe; Vincent, Dorothee; Mazurais, David; Zambonino-infante, Jose-luis; Brotons, Guillaume; Lagarde, Fabienne; Fabioux, Caroline; Soudant, Philippe; Huvet, Arnaud.
Marine plastic pollution is a major environmental issue. Given their ubiquitous nature and small dimensions, ingestion of microplastic (MP) and nanoplastic (NP) particles and their subsequent impact on marine life are a growing concern worldwide. Transfers along the trophic chain, including possible translocation, for which the hazards are less understood, are also a major preoccupation. Effects of MP ingestion have been studied on animals through laboratory exposure, showing impacts on feeding activity, reserve depletion and inflammatory responses, with consequences for fitness, notably reproduction. However, most experimental studies have used doses of manufactured virgin microspheres that may not be environmentally realistic. As for most...
Tipo: Text Palavras-chave: Microplastics; Nanoplastics; Experimental exposure; Impacts; Marine organisms; Physiology.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00449/56088/57621.pdf
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Pollution des océans par les plastiques et les microplastiques 5
Galgani, Francois; Bruzaud, Stéphane; Duflos, Guillaume; Fabre, Pascale; Casdaldi, Emmanuelle; Ghiglione, Jeff; Grimaud, Régis; George, Matthieu; Huvet, Arnaud; Lagarde, Fabienne; Paul-pont, Ika; Ter Halle, Alexandra.
Human behavior and the intensive use of plastic, combined with poor performance of management systems have led to a massive accumulation of plastic debris in the marine environment, accounting for 50 to 80 % of all marine litter. Their distribution, their fate, their degradation and their impacts stem directly from their composition and use properties. This article reviews knowledge and describes the main scientific, environmental and socio-economic issues, as well as the possible solutions needed to manage an environmental problem that has become global.
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Ano: 2020 URL: https://archimer.ifremer.fr/doc/00663/77471/79429.pdf
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Realistic environmental exposure to microplastics does not induce biological effects in the Pacific oyster Crassostrea gigas 5
Revel, Messika; Châtel, Amélie; Perrein-ettajani, Hanane; Bruneau, Mélanie; Akcha, Farida; Sussarellu, Rossana; Rouxel, Julien; Costil, Katherine; Decottignies, Priscilla; Cognie, Bruno; Lagarde, Fabienne; Mouneyrac, Catherine.
The aim of the present study was to evaluate the presence and potential toxic effects of plastic fragments (<400 μm) of polyethylene and polypropylene on the Pacific oyster Crassostrea gigas. Oysters were exposed to environmentally relevant concentrations (0, 0.008, 10, 100 μg of particles/L) during 10 days, followed by a depuration period of 10 days in clean seawater. Effects of microplastics were evaluated on the clearance rate of organisms, tissue alteration, antioxidant defense, immune alteration and DNA damage. Detection and quantification of microplastics in oyster's tissues (digestive gland, gills and other tissues) and biodeposits using infrared microscopy were also conducted. Microplastics were detected in oyster's biodeposits following...
Tipo: Text Palavras-chave: Microplastics; Crassostrea gigas; Biodeposits; Biomarkers; Bivalves.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00588/70055/68018.pdf
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Tissue-Specific Biomarker Responses in the Blue Mussel Mytilus spp. Exposed to a Mixture of Microplastics at Environmentally Relevant Concentrations 5
Revel, Messika; Lagarde, Fabienne; Perrein-ettajani, Hanane; Bruneau, Mélanie; Akcha, Farida; Sussarellu, Rossana; Rouxel, Julien; Costil, Katherine; Decottignies, Priscilla; Cognie, Bruno; Châtel, Amélie; Mouneyrac, Catherine.
The impact of a microplastic (MP) mixture composed of polyethylene (PE) and polypropylene (PP) plastic particles, prepared from commercially available products, was evaluated in blue mussels Mytilus spp. exposed to three environmentally relevant concentrations: 0.008 μg L−1 (low), 10 μg L−1 (medium), and 100 μg L−1 (high). Organisms were exposed for 10 days followed by 10 days of depuration in clean seawater under controlled laboratory conditions. The evaluation of MP effects on mussel clearance rate, tissue structure, antioxidant defenses, immune and digestive parameters, and DNA integrity were investigated while the identification of plastic particles in mussel tissues (gills, digestive gland, and remaining tissues), and biodeposits (feces and...
Tipo: Text Palavras-chave: Microplastics; Polyethylene; Polypropylene; Mytilus; Oxidative stress; Biomarkers.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00489/60089/63427.pdf
Registros recuperados: 5
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