{"id":33656,"date":"2026-10-26T23:03:20","date_gmt":"2026-10-26T23:03:20","guid":{"rendered":"https:\/\/infos-media-nantes.fr\/?p=33656"},"modified":"2026-10-26T23:03:20","modified_gmt":"2026-10-26T23:03:20","slug":"vendee-mortalite-anguilles-secheresse-federation-peche-2026","status":"publish","type":"post","link":"https:\/\/infos-media-nantes.fr\/vendee-mortalite-anguilles-secheresse-federation-peche-2026\/","title":{"rendered":"Vend\u00e9e : la F\u00e9d\u00e9ration de p\u00eache alerte sur la mortalit\u00e9 des anguilles apr\u00e8s la s\u00e9cheresse"},"content":{"rendered":"<article>\n<p><strong>En Vend\u00e9e, les effets de l&#8217;\u00e9t\u00e9 sec et des \u00e9pisodes de fortes chaleurs se lisent dans l&#8217;\u00e9tat des rivi\u00e8res et la mortalit\u00e9 des poissons.<\/strong> Interrog\u00e9 par Ouest-France dans un bilan publi\u00e9 lundi 26 octobre 2026, <strong>Arnaud Tanguy<\/strong>, directeur administratif et technique de la F\u00e9d\u00e9ration de p\u00eache de Vend\u00e9e, \u00e9voque <strong>des centaines de kilos d&#8217;anguilles mortes<\/strong>. Cette observation alerte sur les difficult\u00e9s rencontr\u00e9es par les milieux aquatiques durant les \u00e9pisodes de manque d&#8217;eau.<\/p>\n<h2>Des pertes importantes apr\u00e8s un \u00e9t\u00e9 marqu\u00e9 par la s\u00e9cheresse<\/h2>\n<p>La baisse du niveau des cours d&#8217;eau, l&#8217;ass\u00e8chement de certaines portions et l&#8217;augmentation de la temp\u00e9rature de l&#8217;eau peuvent mettre les poissons en difficult\u00e9. Dans des zones o\u00f9 l&#8217;eau circule peu, la baisse de l&#8217;oxyg\u00e8ne dissous aggrave les risques d&#8217;asphyxie et de mortalit\u00e9.<\/p>\n<p>La F\u00e9d\u00e9ration de p\u00eache de Vend\u00e9e s&#8217;est mobilis\u00e9e pour la surveillance des milieux et les op\u00e9rations de sauvegarde. Dans une interview accord\u00e9e \u00e0 <strong>TV Vend\u00e9e le 1er septembre 2026<\/strong>, son directeur d\u00e9taillait d\u00e9j\u00e0 les effets des canicules et de la s\u00e9cheresse sur les esp\u00e8ces aquatiques. Le bilan publi\u00e9 le 26 octobre permet de mesurer la gravit\u00e9 de la situation apr\u00e8s l&#8217;\u00e9t\u00e9.<\/p>\n<p>Le chiffre \u00e9voqu\u00e9 de \u00ab centaines de kilos \u00bb est une <strong>estimation rapport\u00e9e par le responsable de la f\u00e9d\u00e9ration<\/strong>. Il ne constitue ni un comptage exhaustif de toutes les anguilles vend\u00e9ennes ni un bilan scientifique par bassin versant. L&#8217;identification pr\u00e9cise des sites concern\u00e9s reste n\u00e9cessaire pour d\u00e9terminer l&#8217;\u00e9tendue des pertes.<\/p>\n<h2>Pourquoi l&#8217;anguille est-elle particuli\u00e8rement vuln\u00e9rable ?<\/h2>\n<p>L&#8217;<strong>anguille europ\u00e9enne<\/strong> passe une partie de son cycle dans les rivi\u00e8res avant de retourner en mer pour se reproduire. La continuit\u00e9 des cours d&#8217;eau, la pr\u00e9sence de zones refuges et la qualit\u00e9 de l&#8217;eau sont d\u00e9terminantes pour sa survie.<\/p>\n<p>Cette esp\u00e8ce figure dans la cat\u00e9gorie <strong>\u00ab en danger critique \u00bb<\/strong> de la liste rouge nationale des poissons d&#8217;eau douce, rappelle l&#8217;Office fran\u00e7ais de la biodiversit\u00e9. Les barrages et obstacles \u00e0 la migration, la modification des habitats, certaines pressions de p\u00eache et l&#8217;\u00e9volution des conditions hydrologiques p\u00e8sent sur une population d\u00e9j\u00e0 fragile.<\/p>\n<p>Les mortalit\u00e9s observ\u00e9es cet \u00e9t\u00e9 doivent \u00eatre analys\u00e9es en tenant compte du contexte local. La chaleur et le manque d&#8217;eau peuvent expliquer des pertes importantes, mais il serait inexact d&#8217;attribuer automatiquement tous les poissons morts \u00e0 une seule cause ou d&#8217;affirmer une pollution chimique sans r\u00e9sultat d&#8217;investigation.<\/p>\n<h2>Les op\u00e9rations de sauvetage ne remplacent pas la protection des cours d&#8217;eau<\/h2>\n<p>Dans les secteurs fragilis\u00e9s, les p\u00eacheurs et techniciens peuvent mener des op\u00e9rations d&#8217;observation, d\u00e9placer des poissons menac\u00e9s vers des habitats plus favorables lorsqu&#8217;une telle intervention est autoris\u00e9e, et alerter les gestionnaires de l&#8217;eau. L&#8217;enjeu d\u00e9passe une seule esp\u00e8ce : brochets, gardons, autres poissons, invert\u00e9br\u00e9s et v\u00e9g\u00e9tation aquatique d\u00e9pendent \u00e9galement de conditions hydrologiques suffisantes.<\/p>\n<p>\u00c0 long terme, les acteurs de l&#8217;environnement insistent sur la <strong>restauration des zones humides<\/strong>, la protection des d\u00e9bits et l&#8217;am\u00e9lioration des continuit\u00e9s \u00e9cologiques. Ces mesures doivent s&#8217;articuler avec les usages de l&#8217;eau par les communes, les exploitations agricoles, les activit\u00e9s \u00e9conomiques et les habitants.<\/p>\n<h2>Que peuvent faire les habitants ?<\/h2>\n<p>En pr\u00e9sence de poissons morts en nombre, d&#8217;une eau anormalement color\u00e9e ou d&#8217;odeurs inhabituelles, il est utile de signaler les faits aux services comp\u00e9tents et de ne pas d\u00e9placer soi-m\u00eame des poissons entre cours d&#8217;eau. Les autorit\u00e9s pourront appr\u00e9cier s&#8217;il faut proc\u00e9der \u00e0 des pr\u00e9l\u00e8vements ou \u00e0 une intervention de protection du milieu.<\/p>\n<p>Les r\u00e8gles de p\u00eache de l&#8217;anguille en 2026 sont d\u00e9taill\u00e9es sur <a href=\"https:\/\/federation-peche-vendee.fr\/quelles-especes\/anguille\/\" style=\"color:#5532F0;font-weight:bold;text-decoration:underline\"><strong><u>le site de la F\u00e9d\u00e9ration de p\u00eache de Vend\u00e9e<\/u><\/strong><\/a>. Les enjeux de migration de l&#8217;esp\u00e8ce sont pr\u00e9sent\u00e9s par <a href=\"https:\/\/ofb.gouv.fr\/retablir-les-continuites-ecologiques\" style=\"color:#5532F0;font-weight:bold;text-decoration:underline\"><strong><u>l&#8217;Office fran\u00e7ais de la biodiversit\u00e9<\/u><\/strong><\/a>. L&#8217;\u00e9volution de la ressource et les observations des prochaines semaines permettront d&#8217;appr\u00e9cier les cons\u00e9quences durables des \u00e9pisodes de s\u00e9cheresse.<\/p>\n<p><small>Photo documentaire : une anguille europ\u00e9enne photographi\u00e9e vivante en ao\u00fbt 2019 lors de la campagne scientifique NURSE de l\u2019Ifremer. Cette image ne montre pas les mortalit\u00e9s signal\u00e9es en Vend\u00e9e en 2026. Photographie : Damien Delaunay \/ Ifremer, CC BY 4.0.<\/small><\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>La F\u00e9d\u00e9ration de p\u00eache de Vend\u00e9e dresse un bilan pr\u00e9occupant apr\u00e8s la s\u00e9cheresse : des centaines de kilos d&#8217;anguilles mortes et des rivi\u00e8res fragilis\u00e9es.<\/p>\n","protected":false},"author":3,"featured_media":33681,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[22],"tags":[10512,10514,78,7701,1150,10515,10513,230,281],"class_list":["post-33656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-nantes","tag-anguille-europeenne","tag-arnaud-tanguy","tag-biodiversite","tag-cours-deau","tag-federation-de-peche","tag-milieux-aquatiques","tag-mortalite-piscicole","tag-secheresse","tag-vendee"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vend\u00e9e : la F\u00e9d\u00e9ration de p\u00eache alerte sur la mortalit\u00e9 des anguilles apr\u00e8s la s\u00e9cheresse - Infos M\u00e9dia Nantes, infos locales, \u00e9v\u00e9nements et actualit\u00e9 utiles \u00e0 Nantes et ses alentours<\/title>\n<meta name=\"description\" content=\"En Vend\u00e9e, la F\u00e9d\u00e9ration de p\u00eache signale des centaines de kilos d&#039;anguilles mortes apr\u00e8s la s\u00e9cheresse. 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