{"id":361236,"date":"2025-06-23T20:45:32","date_gmt":"2025-06-23T19:45:32","guid":{"rendered":"https:\/\/realites.com.tn\/fr\/?p=361236"},"modified":"2025-06-23T20:45:32","modified_gmt":"2025-06-23T19:45:32","slug":"mortalite-des-poissons-a-monastir-les-microalgues-identifiees-comme-cause-principale","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/mortalite-des-poissons-a-monastir-les-microalgues-identifiees-comme-cause-principale\/","title":{"rendered":"Mortalit\u00e9 des poissons \u00e0 Monastir : les microalgues identifi\u00e9es comme cause principale"},"content":{"rendered":"<p class=\"ds-markdown-paragraph\" style=\"line-height: 21.45pt; background: white; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; word-spacing: 0px; margin: 10.3pt 0cm 10.3pt 0cm;\"><span style=\"font-family: 'Segoe UI',sans-serif; color: #404040;\">Les plages situ\u00e9es entre Khnis et Teboulba dans le gouvernorat de Monastir ont \u00e9t\u00e9 le th\u00e9\u00e2tre d&rsquo;un ph\u00e9nom\u00e8ne inqui\u00e9tant ces derniers jours. Des centaines de poissons morts se sont \u00e9chou\u00e9s sur le littoral, suscitant des interrogations parmi la population et les professionnels de la mer. Le minist\u00e8re de l&rsquo;Agriculture, des Ressources hydrauliques et de la P\u00eache a finalement apport\u00e9 une explication \u00e0 travers un communiqu\u00e9 publi\u00e9 sur sa page Facebook officielle.<br \/>\n<\/span><strong><span style=\"font-family: 'Segoe UI',sans-serif; color: #404040;\">Les causes scientifiques du ph\u00e9nom\u00e8ne<br \/>\n<\/span><\/strong><span style=\"color: #404040; font-family: 'Segoe UI', sans-serif;\">Les analyses men\u00e9es sur l&rsquo;eau et les esp\u00e8ces marines ont r\u00e9v\u00e9l\u00e9 que cette mortalit\u00e9 massive r\u00e9sultait d&rsquo;une diminution importante du taux d&rsquo;oxyg\u00e8ne dans l&rsquo;eau. Ce d\u00e9ficit a \u00e9t\u00e9 provoqu\u00e9 par la prolif\u00e9ration puis la d\u00e9composition d&rsquo;algues microscopiques, plus pr\u00e9cis\u00e9ment des dinoflagell\u00e9s et des chlorophytes. Ce ph\u00e9nom\u00e8ne, connu sous le nom de \u00ab\u00a0mar\u00e9e rouge\u00a0\u00bb, a \u00e9t\u00e9 favoris\u00e9 par plusieurs facteurs environnementaux. D&rsquo;une part, les temp\u00e9ratures \u00e9lev\u00e9es d\u00e9passant les 30 degr\u00e9s ont cr\u00e9\u00e9 des conditions propices. D&rsquo;autre part, la pr\u00e9sence excessive de nutriments dans l&rsquo;eau a acc\u00e9l\u00e9r\u00e9 le processus. Les esp\u00e8ces les plus touch\u00e9es incluent le rouget barbet, la dorade blanche et le rouget gris, qui repr\u00e9sentent l&rsquo;essentiel des pertes observ\u00e9es.<br \/>\n<\/span><strong><span style=\"font-family: 'Segoe UI',sans-serif; color: #404040;\">Mesures de pr\u00e9caution et surveillance accrue<br \/>\n<\/span><\/strong><span style=\"color: #404040; font-family: 'Segoe UI', sans-serif;\">Bien qu&rsquo;aucune substance toxique n&rsquo;ait \u00e9t\u00e9 d\u00e9tect\u00e9e lors des premi\u00e8res analyses, les autorit\u00e9s ont pris des dispositions strictes. L&rsquo;interdiction temporaire de p\u00eacher, de collecter ou de commercialiser le poisson provenant de la zone affect\u00e9e reste en vigueur. Cette d\u00e9cision pr\u00e9ventive sera maintenue jusqu&rsquo;\u00e0 l&rsquo;obtention des r\u00e9sultats d\u00e9finitifs des examens en laboratoire. Parall\u00e8lement, un dispositif de surveillance a \u00e9t\u00e9 mis en place avec la collaboration de plusieurs institutions. Un num\u00e9ro vert permet aux citoyens de signaler d&rsquo;\u00e9ventuels nouveaux cas, tandis que des \u00e9quipes mixtes compos\u00e9es de garde-c\u00f4tes et d&rsquo;inspecteurs sanitaires effectuent des rondes r\u00e9guli\u00e8res dans les ports de Monastir, Sayada et Teboulba.<br \/>\n<\/span><span style=\"color: #404040; font-family: 'Segoe UI', sans-serif;\">Les cons\u00e9quences de cet \u00e9v\u00e9nement d\u00e9passent le cadre \u00e9cologique et touchent directement l&rsquo;\u00e9conomie locale. Les p\u00eacheurs de la r\u00e9gion font \u00e9tat de pertes financi\u00e8res importantes et r\u00e9clament des mesures de soutien imm\u00e9diates. Les autorit\u00e9s locales examinent actuellement la possibilit\u00e9 de mettre en place un syst\u00e8me d&rsquo;indemnisation provisoire. Sur le plan environnemental, l&rsquo;Agence nationale pour la protection de l&rsquo;environnement et l&rsquo;Office national d&rsquo;hygi\u00e8ne assurent un suivi rigoureux de la qualit\u00e9 des eaux. Leur objectif consiste non seulement \u00e0 surveiller l&rsquo;\u00e9volution de la situation, mais aussi \u00e0 \u00e9laborer des solutions pour am\u00e9liorer le renouvellement des eaux dans les canaux urbains qui se jettent dans le golfe. Cette zone, particuli\u00e8rement sujette aux ph\u00e9nom\u00e8nes d&rsquo;eutrophisation, n\u00e9cessite en effet une attention particuli\u00e8re pour pr\u00e9venir de nouveaux incidents de ce type. Les services comp\u00e9tents promettent de communiquer des informations plus pr\u00e9cises d\u00e8s que les analyses compl\u00e8tes seront disponibles.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les plages situ\u00e9es entre Khnis et Teboulba dans le gouvernorat de Monastir ont \u00e9t\u00e9 le th\u00e9\u00e2tre d&rsquo;un ph\u00e9nom\u00e8ne inqui\u00e9tant ces derniers jours. Des centaines de poissons morts se sont \u00e9chou\u00e9s&hellip;<\/p>\n","protected":false},"author":81,"featured_media":307311,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2508],"tags":[],"class_list":["post-361236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environnement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mortalit\u00e9 des poissons \u00e0 Monastir : les microalgues identifi\u00e9es comme cause principale - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"Les plages situ\u00e9es entre Khnis et Teboulba dans le gouvernorat de Monastir ont \u00e9t\u00e9 le th\u00e9\u00e2tre d&#039;un ph\u00e9nom\u00e8ne inqui\u00e9tant ces derniers jours. Des centaines\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/realites.com.tn\/fr\/mortalite-des-poissons-a-monastir-les-microalgues-identifiees-comme-cause-principale\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mortalit\u00e9 des poissons \u00e0 Monastir : les microalgues identifi\u00e9es comme cause principale - R\u00e9alit\u00e9s Magazine\" \/>\n<meta property=\"og:description\" content=\"Les plages situ\u00e9es entre Khnis et Teboulba dans le gouvernorat de Monastir ont \u00e9t\u00e9 le th\u00e9\u00e2tre d&#039;un ph\u00e9nom\u00e8ne inqui\u00e9tant ces derniers jours. 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