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| Registros recuperados: 32 | |
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| Alzieu, Claude; Andral, Bruno; Bassoulet, Philippe; Gourmelon, Michele; Le Quillec, Régis; L'Yavanc, Jacky; Quiniou, Francoise. |
| Les traitements in situ des sédiments, ou biodragages, consistent à disperser à la surface ou à injecter dans le sédiment des produits pulvérulents sur lesquels sont fixées des bactéries capables de dégrader les matières organiques. Peu de données expérimentales sont disponibles quant à l'efficacité et à l'impact de cette pratique qui, bien qu'utilisée dans certains milieux d'eau douce, n'a pas fait l'objet de réelles applications en milieu marin. L'offre de service de quelques opérateurs et la demande des gestionnaires des ports, ne peuvent être prises en considération, faute d'une connaissance approfondie des avantages et inconvénients de telles techniques. Il nous est donc apparu nécessaire de définir et de proposer, aux Services en charge des... |
| Tipo: Text |
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| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00040/15121/12457.pdf |
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| Quiniou, Francoise; Compere, Chantal; Caisey, Xavier; Davy, Romain; Matarere, Marcel; Mazeas, Florence; Peleau, Michel. |
| Since 1998, the European Biocidal Products Directive (BPD; 98/8/EC), applied to 23 product types (PT) for specific uses, including PT 21 the « antifouling products », regulates biocidal products before they are placed on the market. On the one hand, the efficacy of active substances and their formulations must be demonstrated for their specific employment ; on the other hand their non impact on workers neither users and environment must be proved and specifically against non target species. Standard protocols for the assessment of efficacy or ecotoxicity of antifouling substances are proposed within the framework of the Ecopaint and Paintclean projects which are founded by the french industry Ministery and labellised by the “Pôle Mer” (Paca and... |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00040/15133/12471.pdf |
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| Arzul, Geneviève; Erard-le Denn, Evelyne; Halgand, Daniel; Quiniou, Francoise; Tetard, Alain; Toularastel, France; Vincke, Marie-claude. |
| Surveillance n°1, 2nd phase, of PENLY nuclear power-plant takes In account studies between April and September 1990. Hydrology, microbiology, phytoplankton, zooplankton, fishing are studied. |
| Tipo: Text |
Palavras-chave: Pelagos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; FIshing; Nuclear power plant; Monitoring. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00432/54392/55722.pdf |
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| Quiniou, Francoise; Judas, Antoine. |
| Cette synthèse bibliographique, non exhaustive, a été réalisée dans le cadre du projet "rade de Brest" grâce à la collaboration d'Antoine JUDAS, contractuel de la CUB en 1995 (premier trimestre). Elle fait partie du projet "Critères physiologiques de la qualité du milieu" réalisé au laboratoire d'Ecotoxicologie de la Direction de l'Environnement Littoral de Brest. Ce document se présente sous la forme de listes dans lesquelles sont reportés les effets létaux et sublétaux de substances chimiques. Pour chaque substance sont indiqués: la forme chimique de la substance, l'espèce testée, le type d'essai réalisé, les concentrations entraînant 50% de létalité (LC50) ou 50% d'effet sublétal (CE50) ainsi que la référence des publications d'où proviennent les valeurs. |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00076/18759/16329.pdf |
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| Amara, Anis; Quiniou, Francoise; Durand, Gael; El Bour, Monia; Boudabous, Abdellatif; Hourmant, Annick. |
| The triazole fungicide epoxiconazole is extensively used to control fungi on crops and may present some potential risk from runoff on coastal ecosystems located close to agricultural areas. Phytotoxicity assessments were conducted on the marine diatom Chaetoceros calcitrans using both the active ingredient and its formulated product (Opus). The 3-day EC50 using cell count was 2.31 mg/L for epoxiconazole active ingredient and 2.9 mu g/L for epoxiconazole-formulated. The fungicide produced an increase of cellular volume, pigment (chlorophylls a, c, and carotenoids) content, ATP synthesis, and rates of photosynthesis and respiration. Progressive algal cell recovery from epoxiconazole effects occurred after 3 days, with the increasing cell density. Differences... |
| Tipo: Text |
Palavras-chave: Age cell; Chaetoceros calcitrans; Culture conditions; Epoxiconazole; Growth; Physiological parameters. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00130/24105/22491.pdf |
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| Quiniou, Francoise; Blanchard, Michel; Bocquene, Gilles; Burgeot, Thierry; Giboire, Louis; His, Edouard; Le Du, Anne. |
| La présente étude a pour objectif de sélectionner des méthodes de laboratoire et de terrain les mieux appropriées pour l'évaluation de l'écotoxicité de sédiments dragués : indicateurs biochimiques d'exposition (EROD et AChE), tests de toxicité sublétale (micro-organismes, algues, embryons de bivalve et extrait enzymatiques de poisson), indices physiologiques de bivalve (respiration, excrétion, mouvements valvaires). Une synthèse des résultats est présentée accompagnée, en annexes, des rapports des différents participants à l'étude. |
| Tipo: Text |
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| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00104/21573/19153.pdf |
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| Alzieu, Claude; Abarnou, Alain; Bassoullet, Philippe; Boutier, Bernard; Chiffoleau, Jean-francois; Crenn, Isabelle; Derrien, Annick; Erard-le Denn, Evelyne; Gourmelon, Michele; Guiliaud, Jean-françois; Silva Jacinto, Ricardo; Le Cann, Pierre; Le Guyader, Françoise; Le Hir, Pierre; L'Yavanc, Jacky; Mauvais, Jean-louis; Menard, Dominique; Michel, Pierre; Monbet, Yves; Pommepuy, Monique; Quiniou, Francoise. |
| Port activities require continuous or occasional dredging of considerable quantities of sediments : approximately 50 million m3 along the French coastline. A large proportion of the dredgings is authorized for dumping at sea in geographically delimited areas and following an impact evaluation of their potential harmfulness to the marine environment. The environmental risks assessment linked to dredging operations relies on knowledge related to several scientific disciplines contributing to changes in the regulations. This work, intended both for managers and for environmental scientists and engineers, is designed to take stock of the current state-of-the-art in the field of sediment contamination and related ecotoxicological hazards, along with a review of... |
| Tipo: Text |
Palavras-chave: Regulations; Management; Impact; Contaminants; Dredging; Réglementation; Gestion; Impact; Contaminants; Dragages. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/rapport-1040.pdf |
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| Quiniou, Francoise; Le Feve, Jacques; Ryckaert, Mireille. |
| En ce qui concerne les sites de PLOUMOGUER et PLOGOFF, le Centre National pour l'Exploitation des Oceans (C.N.E.X.0.) a sous-traite A l'Université de Bretagne Occidentale (U.B.0.) la réalisation de la plus grande partie des études écologiques d'avant-projet, qui n'ont porte dans un premier temps que sur les problèmes relatifs au benthos (faune et flore du fond). Une synthèse (ALLEN et al., 1978) des résultats obtenus lors des études d'avant-projet des sites bretons a fait apparaître que l'absence, sur ces deux sites, de résultats concernant le pelagos (faune et flore de pleine eau) était une lacune grave qui devait être comblée avant toute décision définitive. Le contrat cite en référence matérialise cette nécessite et porte sur la réalisation d'un... |
| Tipo: Text |
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| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00005/11651/8310.pdf |
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| Alzieu, Claude; Andral, Bruno; Bassoullet, Philippe; Boutier, Bernard; Gonzalez, Jean-louis; Huet, Martial; Jestin, Herve; L'Yavanc, Jacky; Michel, Pierre; Paulet, Yves-marie; Quiniou, Francoise; Silva Jacinto, Ricardo. |
| Le projet à pour but de modéliser la dispersion des immersions des boues de dragage, à partir de modèles numériques de manière à pouvoir évaluer le devenir de la charge particulaire et des contaminants associés. Les résultats des expérimentations en laboratoire montrent, qu'à l'échelle représentative du temps de séjour des particules dans la colonne d'eau du champ proche (quelques heures), on ne constate pas de solubilisation des métaux. La libération de la fraction associée aux eaux interstitielles et les flux à l'interface eau-sédiment (diagenèse précoce) après dépôt des sédiments rejetés, sont les processus qui pourraient être la cause d'un apport important de Cd (ou autre contaminant) dissous dans le milieu. Les hypothèses retenues pour l'élaboration... |
| Tipo: Text |
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| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00075/18621/16172.pdf |
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| Poirier, Laurence; Amiard, Jean-claude; Mondeguer, Florence; Quiniou, Francoise; Ruiz, Nicolas; Pouchus, Yves Francois; Montagu, Monique. |
| Extraction followed by reverse phase liquid chromatography (LC)/electrospray ionization-ion trap-mass spectrometry (ESI-IT-MS) analysis has been successfully developed for the determination of peptaibols, fungal toxic metabolites, in marine sediments. Spiking experiments showed that the mean recovery of target compounds exceeded 85% at a spiking level of 10 ng/g of sediment (wet weight). Detection and quantification limits were 250 and 830 pg/g of sediment, respectively. The method developed constituted the first sensitive assay for quantification of peptaibol trace amounts in a natural environment. A concentration of 5 ng/g in sediment samples collected from Fier d'Ars was found. |
| Tipo: Text |
Palavras-chave: Matched calibration; Matrix; Electrospray ionization ion trap mass spectrometry ESI IT MS; Marine fungal contamination; Trichoderma sp.; Fungal peptide metabolites. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2990.pdf |
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| Burgeot, Thierry; Quirion, Sophie; Quiniou, Francoise; Knoery, Joel; Soletchnik, Patrick; Gagnaire, Beatrice; Renault, Tristan; Osada, M.; Geret, F.; Communal, P. Y.; Jadas-hecart, A.; Gagne, F.. |
| In the Atlantic French coast, significant mortalities were observed in oyster communities during gametogenesis. These deaths possibly result from the cumulative effects of various stressors such as seasonal temperature variations, pesticide application and the release of contaminants from the resuspension of sediments. A field survey, based on aquaculture conditions at 15 and 70 cm from the sediment bed with genetically-resistant (R) and -sensitive (S) lines, showed a stress condition. Significant weight loss was observed during May 14th through June 10th for both R and S lines. On one hand, the levels of the egg yolk vitellin in females were decreased at May 14th for both R and S lines. On the other hand, a significant increase in vitellin production was... |
| Tipo: Text |
Palavras-chave: Mortalities; Herbicides; Sediment; Biomarkers; Gametogenesis; Crassostrea gigas; Pacific oysters. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/acte-3384.pdf |
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| Oral, Rahime; Kostopoulou, Maria; Guida, Marco; Nikolaou, Anastasia; Quiniou, Francoise; Trifuoggi, Marco; Borriello, Ilaria; Vagi, Maria; D'Ambra, Antonello; Pagano, Giovanni. |
| The aim of the present study was to evaluate marine contamination and toxicity in sediment and pore water from the areas of Izmir Bay (Turkey) and Mytilene Harbor (Greece). The evaluation was performed in terms of selected toxic-metals, polycyclic aromatic compounds (PAR) and toxicity to sea urchin (Paracentrotus lividus) early development and fertilization. Significantly higher levels of metals and total PAR were detected in Izmir vs. Mytilene sediment, and the highest contamination was detected in Izmir Bay innermost sites. Bioassays were carried out in P. lividus embryos and sperm, by evaluating developmental defects and changes in fertilization success by exposing sea urchin embryos or sperm to sediment/seawater suspensions. Whole sediment (WS) showed... |
| Tipo: Text |
Palavras-chave: Sediment toxicity; Whole sediment; Pore water; Sea urchins; Aegean Sea. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00125/23600/21447.pdf |
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| Stachowski Haberkorn, S; Quiniou, Francoise; Nedelec, M; Robert, Rene; Limon, G; De La Broise, D. |
| Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mu m filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 mu g l(-1), oysters treated with a mix of 10 mu g l(-1) Opus and 10 mu g l(-1) Basamais showed a 50% growth reduction compared with... |
| Tipo: Text |
Palavras-chave: Epoxiconazole; Bentazon; Pesticide; Toxicity; Oyster; Microcosm. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4134.pdf |
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| Registros recuperados: 32 | |
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