{"id":25290,"date":"2024-02-19T09:31:48","date_gmt":"2024-02-19T08:31:48","guid":{"rendered":"https:\/\/asso.graie.org\/portail\/?p=25290"},"modified":"2025-01-15T13:40:58","modified_gmt":"2025-01-15T12:40:58","slug":"cafe-zabr-cyanobacteries","status":"publish","type":"post","link":"https:\/\/asso.graie.org\/portail\/cafe-zabr-cyanobacteries\/","title":{"rendered":"Replay | Caf\u00e9 ZABR Cyanobact\u00e9ries"},"content":{"rendered":"\n
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Peut-on pr\u00e9dire le d\u00e9veloppement et la toxicit\u00e9 des cyanobact\u00e9ries benthiques en rivi\u00e8re ?<\/h2>\n\n\n\n
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Biofilms de Cyanobact\u00e9ries : k\u00e9sako ?<\/h3>\n\n\n\n
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L\u2019eutrophisation des rivi\u00e8res entra\u00eene des prolif\u00e9rations algales qui peuvent s’accompagner du d\u00e9veloppement de biofilms de cyanobact\u00e9ries (BAC) qui se trouvent au fond des cours d\u2019eau. Celles-ci, moins \u00e9tudi\u00e9es que les cyanobact\u00e9ries planctoniques qui se trouvent dans la colonne d\u2019eau, peuvent synth\u00e9tiser des neurotoxines. Les intoxications arrivent quand les biofilms se d\u00e9crochent du substrat. Si les enjeux sanitaires de ces biofilms sur la sant\u00e9 humaine sont relativement bien connus ; qu\u2019en est-il de leur impact sur la biodiversit\u00e9 aquatique ?<\/p>\n\n\n\n

Des travaux de recherche ont mis en \u00e9vidence les facteurs physiques, chimiques et hydrauliques propices \u00e0 leur d\u00e9veloppement.<\/p>\n\n\n\n

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Lundi 18 mars 2024<\/h2>\n\n\n\n
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13h30 – 14h30<\/p>\n\n\n\n

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Visio-conf\u00e9rence<\/p>\n\n\n\n

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T\u00e9l\u00e9charger les actes<\/strong><\/a><\/div>\n\n\n\n
Replay<\/strong><\/a><\/div>\n<\/div>\n\n\n\n
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Partons \u00e0 la d\u00e9couverte des processus de d\u00e9veloppement des cyanobact\u00e9ries benthiques en riviere.<\/h3>\n\n\n\n

Un travail de recherche important a \u00e9t\u00e9 conduit, dans le contexte de la ZABR et d\u2019H2O\u2019Lyon, dans deux laboratoires lyonnais, le LEHNA et l\u2019ISARA et sur la rivi\u00e8re d\u2019Ain. Il a permis :<\/p>\n\n\n\n

    \n
  • D\u2019identifier<\/strong> les facteurs pr\u00e9pond\u00e9rants \u00e0 leur d\u00e9veloppement<\/li>\n\n\n\n
  • De pr\u00e9dire <\/strong>en fonction de ces facteurs, les endroits et les moments o\u00f9 ces biofilms de cyanobact\u00e9ries vont se d\u00e9velopper<\/li>\n\n\n\n
  • D\u2019\u00e9valuer<\/strong> le transfert de toxines du biofilm aux organismes aquatiques<\/li>\n<\/ul>\n\n\n\n
    <\/div>\n\n\n\n

    Intervenants<\/h3>\n\n\n\n

    <\/p>\n\n\n\n

      \n
    • Une pr\u00e9sentation par Joel Robin, enseignant chercheur \u00e0 l\u2019ISARA <\/strong>et par Sylvain Doledec, professeur l\u2019Universit\u00e9 Lyon 1 UMR 5023 <\/strong>des travaux de recherche de Charlotte Robichon, qui vient de soutenir sa th\u00e8se sur les cyanobact\u00e9ries benthiques en rivi\u00e8re.<\/li>\n\n\n\n
    • Et le t\u00e9moignage de Gaela Le B\u00e9chec<\/strong>, charg\u00e9e de projet Qualit\u00e9 Quantit\u00e9 au SR3A<\/strong>, syndicat de la rivi\u00e8re d’Ain Aval et ses Affluents<\/li>\n<\/ul>\n\n\n\n
      <\/div>\n\n\n\n

      L\u2019Agence de l\u2019eau RMC, la Fondation V\u00e9rot, le SR3A et H2O\u2019Lyon ont soutenus ce projet de recherche.<\/em><\/p>\n\n\n\n

      <\/div>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      <\/div>\n","protected":false},"excerpt":{"rendered":"

      Peut-on pr\u00e9dire le d\u00e9veloppement et la toxicit\u00e9 des cyanobact\u00e9ries benthiques en rivi\u00e8re ? Biofilms de Cyanobact\u00e9ries : k\u00e9sako ? L\u2019eutrophisation des rivi\u00e8res entra\u00eene des prolif\u00e9rations algales qui peuvent s’accompagner du d\u00e9veloppement de biofilms de cyanobact\u00e9ries (BAC) qui se trouvent au fond des …<\/p>\n","protected":false},"author":16,"featured_media":25673,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"footnotes":""},"categories":[24,589,1512,74],"tags":[1732,1861,1997,1998,460,1999,302,1912,1735,1616],"acf":[],"yoast_head":"\nReplay | Caf\u00e9 ZABR Cyanobact\u00e9ries | Graie<\/title>\n<meta name=\"description\" content=\"Ce caf\u00e9 Zabr aura lieu le 18 mars 2024 : peut-on pr\u00e9dire le d\u00e9veloppement et la toxicit\u00e9 des cyanobact\u00e9ries benthiques en rivi\u00e8re\u00a0?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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