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Registros recuperados: 4
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Distribution, associated species and extent of biofouling “reefs” formed by the alien species Ficopomatus enigmaticus (Annelida, Polychaeta) in marinas ArchiMer
Charles, M.; Faillettaz, Robin; Desroy, Nicolas; Fournier, Jerome; Costil, Katherine.
Artificial structures in ports are commonly colonized by non-indigenous epifauna that tolerate high pollution levels. Bioconstructions built by alien species may offer sheltered microhabitats for motile (vagile) animals but biofouling often becomes detrimental to human activities. In this context, the present study provides an inventory of 1) the extent of biofouling related to the alien Polychaeta Ficopomatus enigmaticus on hard structures of marinas in Normandy, France, and 2) the biodiversity of sessile (attached) or vagile (motile) fauna associated with these “reefs”, including both native and alien species. Reefs built by F. enigmaticus were found in 6 out of 12 marinas with oligohaline-mesohaline waters. Significant differences in the total volume of...
Tipo: Text Palavras-chave: Biofouling; Ficopomatus enigmaticus; Benthic communities; Alien species; Marinas; Normandy (France).
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00449/56052/57572.pdf
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Summer mortality of Crassostrea gigas (Thunberg) in relation to environmental rearing conditions ArchiMer
Soletchnik, Patrick; Lambert, Christian; Costil, Katherine.
The purpose of this study is to investigate summer mortality of the cupped oyster, Crassostrea gigas, in relation to culture practices in the traditional oyster production region of Marennes-Oleron (France). Four oyster rearing conditions, varying culture location ("on-" or "off-bottom"), and site depth (65% to 80% daily immersion termed "deep" or 45% to 65%, termed "shallow") were studied to compare biologic performance and maturation status of oysters, in relation to sediment and water column parameters. The most severe mortality occurred in June to July in "on-bottom" reared oysters (25%), as compared with 10% mortality in "off-bottom" cultured oysters. Oysters (shell and meat) grew significantly better when reared "off-bottom" than "on-bottom."...
Tipo: Text Palavras-chave: Summer mortality; Hydrology; Sediment; Marine ecosystem; Marennes Oleron Bay; Crassostrea gigas.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-3171.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 ArchiMer
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
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Toxicity assessment of five emerging pollutants, alone and in binary or ternary mixtures, towards three aquatic organisms ArchiMer
Di Poi, Carole; Costil, Katherine; Bouchart, Valerie; Halm-lemeille, Marie-pierre.
Despite a growing scientific attention on ecological impact of emerging pollutants (EPs) such as pharmaceuticals, personal care products, and pesticides, knowledge gaps remain regarding mixture toxicity and effects on aquatic organisms. Several EPs were screened in seawater (Normandy, France), and the ecotoxicity of five compounds, chosen on their occurrence in ecosystems and use worldwide, was assessed and were the biocides methylparaben (MP) and triclosan (TCS), a pesticide degradation product (AMPA), and the pharmaceuticals venlafaxine (VEN) and carbamazepine (CBZ). The acute or sub-chronic toxicity, alone or in binary/ternary mixtures of three of them (CBZ, AMPA, and MP), was assessed on one marine and two freshwater organisms: Crassostrea gigas,...
Tipo: Text Palavras-chave: Pharmaceuticals; Personal care products; Pesticides; Mixture and single-compound toxicity; Freshwater species; Marine bivalve.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00389/50004/52260.pdf
Registros recuperados: 4
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