{"id":2174,"date":"2025-04-30T14:25:23","date_gmt":"2025-04-30T18:25:23","guid":{"rendered":"https:\/\/www.glft.org\/?p=2174"},"modified":"2025-04-30T14:25:23","modified_gmt":"2025-04-30T18:25:23","slug":"edna-plumes-provide-clues-to-track-down-whitefish-spawning-locations","status":"publish","type":"post","link":"https:\/\/www.glft.org\/fr\/edna-plumes-provide-clues-to-track-down-whitefish-spawning-locations\/","title":{"rendered":"Les panaches d&#039;ADN environnemental fournissent des indices pour localiser les fray\u00e8res du cor\u00e9gone"},"content":{"rendered":"<div id=\"fws_69fd032123b99\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\r\n<div class=\"wpb_text_column wpb_content_element  vc_custom_1745959132936\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<p>Alors que le r\u00e9tablissement de la fraie fluviale <a href=\"https:\/\/guidesly.com\/fishing\/fish-species\/lake-whitefish\" target=\"_blank\" rel=\"noopener\">cor\u00e9gone de lac<\/a> Les populations des affluents de la baie Green constituent un exemple de r\u00e9ussite en mati\u00e8re de conservation. Les estimations actuelles montrent que la plupart des grands cor\u00e9gones de la r\u00e9gion fraient en eaux libres. La capacit\u00e9 de localiser pr\u00e9cis\u00e9ment les fray\u00e8res dans la baie Green pourrait aider les gestionnaires des p\u00eaches \u00e0 mieux comprendre les conditions d&#039;un bon habitat de frai pour le grand cor\u00e9gone et \u00e0 prot\u00e9ger l&#039;habitat existant. Cependant, il est difficile de trouver ces fray\u00e8res en eaux libres. De nouvelles recherches pilotes montrent que l&#039;ADN environnemental pourrait \u00eatre utilis\u00e9 pour localiser les concentrations de grands cor\u00e9gones en fraie dans la baie Green.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\r\n\t\t<div id=\"fws_69fd032123edf\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\r\n<div class=\"wpb_text_column wpb_content_element\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h3>Principales conclusions<\/h3>\n<ul>\n<li>Les agr\u00e9gations de cor\u00e9gones de lac lib\u00e8rent de l&#039;ADN environnemental dans des panaches qui sont d\u00e9tectablement plus concentr\u00e9s que le niveau d&#039;ADN environnemental ambiant du cor\u00e9gone dans l&#039;environnement.<\/li>\n<li>L\u2019emplacement de ces panaches peut \u00eatre utilis\u00e9 pour d\u00e9terminer l\u2019emplacement de l\u2019agr\u00e9gation de cor\u00e9gones \u00e0 moins de 50 m\u00e8tres.<\/li>\n<li>Des agr\u00e9gations plus importantes de poissons conduisent \u00e0 des panaches d\u2019ADN environnemental plus grands et plus concentr\u00e9s d\u00e9tect\u00e9s dans l\u2019eau.<\/li>\n<\/ul>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\r\n\t\t<div id=\"fws_69fd032124075\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\r\n<div class=\"wpb_text_column wpb_content_element\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h3>R\u00e9sultats significatifs de la recherche sur le grand cor\u00e9gone<\/h3>\n<p>Cette recherche sugg\u00e8re que l&#039;examen des concentrations d&#039;ADN environnemental pourrait guider les gestionnaires des p\u00eaches et les chercheurs vers les sites de frai du grand cor\u00e9gone, leur permettant ainsi d&#039;\u00e9tudier et de prot\u00e9ger cet important habitat. De plus, cette m\u00e9thode pourrait potentiellement servir \u00e0 localiser les concentrations d&#039;autres esp\u00e8ces de poissons dans les grands lacs.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\r\n\t\t<div id=\"fws_69fd0321241f9\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-6 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\r\n<div class=\"wpb_text_column wpb_content_element\" >\r\n\t<div class=\"wpb_wrapper\">\r\n\t\t<h2>Apprendre encore plus<\/h2>\n<p>Si vous avez des questions, veuillez contacter le chercheur principal, le Dr Jared Homola, \u00e0 <a href=\"mailto:homolaj1@msu.edu\">homolaj1@msu.edu<\/a>.<\/p>\n<p><strong>Clause de non-responsabilit\u00e9<\/strong><\/p>\n<p>Les notes de recherche comprennent les r\u00e9sultats des projets financ\u00e9s par le GLFT qui contribuent \u00e0 l\u2019ensemble des connaissances scientifiques sur la p\u00eache dans les Grands Lacs. Les conclusions des chercheurs et les r\u00e9sum\u00e9s des r\u00e9sultats des subventions ne constituent pas une approbation ou une position du GLFT et sont fournis pour mieux faire conna\u00eetre les r\u00e9sultats des projets et fournir des informations pertinentes aux chercheurs et aux gestionnaires des p\u00eaches. Les conclusions des chercheurs sont souvent pr\u00e9liminaires et n\u2019ont peut-\u00eatre pas \u00e9t\u00e9 \u00e9valu\u00e9es par des pairs.<\/p>\n\t<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n\n\t<div style=\" color: #2c475d;margin-top: 15px; \" class=\"vc_col-sm-6 drk-back-link wpb_column column_container vc_column_container col padding-3-percent inherit_tablet inherit_phone\" data-using-bg=\"true\" data-padding-pos=\"left-right\" data-has-bg-color=\"true\" data-bg-color=\"rgba(44,71,93,0.05)\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" ><div class=\"column-bg-overlay-wrap\" data-bg-animation=\"none\"><div class=\"column-bg-overlay\" style=\"opacity: 1; background-color: rgba(44,71,93,0.05);\"><\/div><\/div>\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t<div class=\"divider-wrap\" data-alignment=\"default\"><div style=\"height: 25px;\" class=\"divider\"><\/div><\/div><h2 style=\"font-size: 30px;color: #2c475d;text-align: left;font-family:PT Sans;font-weight:400;font-style:normal\" class=\"vc_custom_heading\" >Lectures connexes<\/h2><div class=\"divider-wrap\" data-alignment=\"default\"><div style=\"height: 10px;\" class=\"divider\"><\/div><\/div><div class=\"nectar-fancy-ul\" data-list-icon=\"fa fa-search\" data-animation=\"false\" data-animation-delay=\"0\" data-color=\"extra-color-3\" data-spacing=\"10px\" data-alignment=\"left\"> \n<ul>\n<li><a href=\"https:\/\/www.glft.org\/fr\/recruitment-dynamics-of-lake-whitefish-and-cisco-in-the-upper-great-lakes\/\">Une approche de bureau pour \u00e9valuer la faisabilit\u00e9 de l&#039;empoissonnement du grand cor\u00e9gone<\/a><\/li>\n<li><a href=\"\/fr\/using-genomics-techniques-to-delineate-lake-michigan-whitefish-stocks\/\">Utilisation de techniques g\u00e9nomiques pour d\u00e9limiter les stocks de cor\u00e9gones du lac Michigan<\/a><\/li>\n<li><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0380133010000341\" target=\"_blank\" rel=\"noopener\">Mesures de la longueur et de l&#039;abondance des larves de grands cor\u00e9gones comme pr\u00e9dicteurs pr\u00e9coces de la force de la classe d&#039;\u00e2ge dans le lac Michigan<\/a><\/li>\n<li><a href=\"https:\/\/www.ices.dk\/news-and-events\/news-archive\/news\/Pages\/EC_Brown.aspx\" target=\"_blank\" rel=\"noopener\">Pr\u00e8s de six d\u00e9cennies de tendances de recrutement pour le grand cor\u00e9gone et le cisco dans les Grands Lacs<\/a><\/li>\n<\/ul>\n <\/div><div class=\"divider-wrap\" data-alignment=\"default\"><div style=\"height: 10px;\" class=\"divider\"><\/div><\/div>\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Cette \u00e9dition de Notes de recherche met en \u00e9vidence les recherches identifiant les lieux de frai dans la baie Green pour aider les gestionnaires des p\u00eaches \u00e0 mieux comprendre ce qui constitue de bons habitats de frai pour le cor\u00e9gone.<\/p>","protected":false},"author":7,"featured_media":2175,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4],"tags":[],"class_list":{"0":"post-2174","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-research-notes"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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