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Registros recuperados: 7
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Bassins insubmersibles et contamination par les micro-algues toxiques (BICMAT) ArchiMer
Derrien, Amelie; Terre Terrillon, Aouregan; Duval, Audrey; Lebrun, Luc; Doner, Anne; Rovillon, Georges-augustin; Amzil, Zouher; Le Bec, Claude.
En cas de fermeture de zone de production pour cause de présence d'une espèce de micro algues toxique, une mesure prévoit pour les professionnels de la conchyliculture l'interdiction générale d'utilisation de l'eau de mer déjà pompée dans un bassin insubmersible. C'est dans ce contexte que la DGAL a sollicité l'appui du LER BO pour la mise en place d'une étude dans des conditions professionnelles. Cette étude vise à déterminer d'il existe un risque de contamination lors de l'immersion de coquillages non contaminés dans un bassun insubmersible rempli en eau de mer pompée dans une zone fermée pour cause de présence de micro-algues toxiques. Entre fin juin et début juillet, la présence de Dinophysis sp a entraîné la fermeture de la baie de Concarneau. Des...
Tipo: Text Palavras-chave: Dinophysis; Toxines lipophiles; Acide okadaïque; Yessotoxines; Bassin insubmersible; Huîtres; Moules.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00486/59736/62831.pdf
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Ostreopsis lenticularis Y. Fukuyo (Dinophyceae, Gonyaulacales) from French Polynesia (South Pacific Ocean): A revisit of its morphology, molecular phylogeny and toxicity ArchiMer
Chomérat, Nicolas; Bilien, Gwenael; Derrien, Amelie; Henry, Kévin; Ung, André; Viallon, Jérôme; Darius, Hélène Taiana; Mahana Iti Gatti, Clémence; Roué, Mélanie; Hervé, Fabienne; Réveillon, Damien; Amzil, Zouher; Chinain, Mireille.
To date, the genus Ostreopsis comprises eleven described species, of which seven are toxigenic and produce various compounds presenting a major threat to human and environmental health. The taxonomy of several of these species however remains controversial, as it was based mostly on morphological descriptions leading, in some cases, to ambiguous interpretations and even possible misidentifications. The species Ostreopsis lenticularis was first described by Y. Fukuyo from French Polynesia using light microscopy observations, but without genetic information associated. The present study aims at revisiting the morphology, molecular phylogeny and toxicity of O. lenticularis based on the analysis of 47 strains isolated from 4 distinct locales of French...
Tipo: Text Palavras-chave: ITS-5.8S rDNA; LSU rDNA; Microscopy; Ostreopsis lenticularis; Taxonomy; Toxins.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00486/59747/62887.pdf
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Qualité du milieu marin littoral. Bulletin de la surveillance 2017. Laboratoire Environnement Ressources de Bretagne Occidentale. Département du Finistère ArchiMer
Le Bec, Claude; Boulben, Sylviane; Demeule, Carole; Derrien, Amelie; Doner, Anne; Duval, Audrey; Lebrun, Luc; Terre Terrillon, Aouregan.
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00464/57590/59768.pdf
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Qualité du milieu marin littoral. Bulletin de la surveillance 2018. Département du Finistère ArchiMer
Le Bec, Claude; Le Gac-abernot, Chantal; Boulben, Sylviane; Demeule, Carole; Derrien, Amelie; Doner, Anne; Duval, Audrey; Lebrun, Luc; Terre Terrillon, Aouregan.
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00507/61907/65998.pdf
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Qualité du milieu marin littoral. Bulletin de la surveillance 2019. Département du Finistère ArchiMer
Le Bec, Claude; Le Gac-abernot, Chantal; Boulben, Sylviane; Demeule, Carole; Derrien, Amelie; Doner, Anne; Duval, Audrey; Lebrun, Luc; Terre Terrillon, Aouregan.
L’Ifremer coordonne, sur l’ensemble du littoral métropolitain, la mise en œuvre des réseaux d’observation et de surveillance de la mer côtière. Ce bulletin  contient une synthèse et une analyse des données collectées par l’ensemble des réseaux pour le Finistère. Des représentations graphiques homogènes, assorties de commentaires, donnent des indications sur les niveaux et les tendances des paramètres mesurés.
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Ano: 2020 URL: https://archimer.ifremer.fr/doc/00642/75407/76214.pdf
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Reclassification of Gonyaulax verior (Gonyaulacales, Dinophyceae) as Sourniaea diacantha gen. et comb. nov. ArchiMer
Zhang, Wei; Li, Zhun; Mertens, Kenneth; Derrien, Amelie; Pospelova, Vera; Carbonell-moore, M. Consuelo; Bagheri, Siamak; Matsuoka, Kazumi; Shin, Hyeon Ho; Gu, Haifeng.
Gonyaulax verior was initially described as Amylax diacantha from Belgian coastal waters a century ago but its detailed morphology needed restudy. Here, we established nine strains of G. verior by germinating cysts or isolating cells from localities from the European Atlantic to the Caspian Sea and the Pacific Ocean. Both cyst and thecal morphology were examined by light and scanning electron microscopy. SSU, LSU and/or ITS-5.8S rRNA gene sequences were obtained from all strains. Cells of G. verior have a plate formula of Po, 4′, 2a, 6-7′′, 6C, 6S, 6′′′, 1p, 1′′′′ with an L-type ventral organisation, characterised by two either straight or curved antapical horns of variable length. Cysts of G. verior are oval, smooth and contain one or two yellow...
Tipo: Text Palavras-chave: Amylax diacantha; Cysts; Dinoflagellate; Gonyaulax longispina; Molecular phylogeny.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00621/73347/72625.pdf
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Record levels of Dinophysistoxin-2 in clams from Douarnenez Bay, France, after an unusual bloom of Dinophysis acuta ArchiMer
Derrien, Amelie; Terre Terrillon, Aouregan; Duval, Audrey; Doner, Anne; Chomerat, Nicolas.
Tipo: Text
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00683/79481/82072.pdf
Registros recuperados: 7
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