{"id":378463,"date":"2025-06-27T09:20:51","date_gmt":"2025-06-27T08:20:51","guid":{"rendered":"https:\/\/www.webdo.tn\/fr\/?p=378463"},"modified":"2025-06-29T10:11:41","modified_gmt":"2025-06-29T09:11:41","slug":"invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025","status":"publish","type":"post","link":"https:\/\/www.webdo.tn\/fr\/actualite\/national\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\/378463\/","title":{"rendered":"Invasion pr\u00e9coce de m\u00e9duses en Tunisie : Un signal d\u2019alerte pour l\u2019\u00e9t\u00e9 2025"},"content":{"rendered":"\n<p><strong>Depuis d\u00e9but juin, plusieurs plages tunisiennes sont envahies par les m\u00e9duses. Un ph\u00e9nom\u00e8ne pr\u00e9coce, d\u00fb au r\u00e9chauffement de la M\u00e9diterran\u00e9e et \u00e0 la d\u00e9gradation de l\u2019\u00e9cosyst\u00e8me marin.<\/strong><\/p>\n\n\n\n<p>La sc\u00e8ne se r\u00e9p\u00e8te sur de nombreuses plages tunisiennes : des vacanciers surpris par des bancs de m\u00e9duses d\u00e9rivant pr\u00e8s du rivage. Ph\u00e9nom\u00e8ne inhabituel \u00e0 cette p\u00e9riode de l\u2019ann\u00e9e, cette prolif\u00e9ration pr\u00e9coce touche notamment les c\u00f4tes du Sahel, de la banlieue sud de Tunis et du Cap Bon.<\/p>\n\n\n\n<p>Selon les observations des sp\u00e9cialistes, ces m\u00e9duses \u2013 notamment l\u2019esp\u00e8ce bleue, impressionnante mais inoffensive, et une autre, plus petite, \u00e0 la piq\u00fbre douloureuse \u2013 ont fait leur apparition d\u00e8s les premiers jours de juin. Or, elles n\u2019apparaissent habituellement qu\u2019\u00e0 la fin ao\u00fbt ou d\u00e9but septembre.<\/p>\n\n\n\n<p><strong>La M\u00e9diterran\u00e9e se r\u00e9chauffe plus vite que pr\u00e9vu<\/strong><\/p>\n\n\n\n<p>Ce changement de rythme est un indicateur alarmant des bouleversements que conna\u00eet la M\u00e9diterran\u00e9e. \u00ab Nos eaux sont aujourd\u2019hui parmi les plus chaudes du globe \u00bb, explique Yassine Ramzi Sghaier, expert en biologie marine. Invit\u00e9 ce vendredi 27 juin dans l\u2019\u00e9mission Ahla Sbeh, il alerte : \u00ab La hausse de la temp\u00e9rature acc\u00e9l\u00e8re le d\u00e9veloppement des m\u00e9duses. \u00bb<\/p>\n\n\n\n<p>Outre le r\u00e9chauffement climatique, la pollution marine joue \u00e9galement un r\u00f4le crucial. Certaines plages tunisiennes, touch\u00e9es par des rejets organiques ou chimiques, offrent aux m\u00e9duses un milieu particuli\u00e8rement riche en nutriments. R\u00e9sultat : leur prolif\u00e9ration s\u2019acc\u00e9l\u00e8re.<\/p>\n\n\n\n<p><strong>Surp\u00eache et d\u00e9s\u00e9quilibre de l\u2019\u00e9cosyst\u00e8me<\/strong><\/p>\n\n\n\n<p>Autre cause aggravante : la surp\u00eache. En exploitant certaines esp\u00e8ces de poissons qui se nourrissent naturellement de m\u00e9duses, comme les tortues ou certains thons, l\u2019\u00e9quilibre \u00e9cologique est rompu.<\/p>\n\n\n\n<p>\u00ab C\u2019est une cha\u00eene : moins de pr\u00e9dateurs, plus de m\u00e9duses \u00bb, r\u00e9sume le biologiste. Et le ph\u00e9nom\u00e8ne n\u2019est pas pr\u00e8s de s\u2019arr\u00eater. Selon plusieurs projections scientifiques, la M\u00e9diterran\u00e9e pourrait conna\u00eetre des prolif\u00e9rations de plus en plus longues et intenses dans les ann\u00e9es \u00e0 venir.<\/p>\n\n\n\n<p>Yassine Ramzi a pr\u00e9cis\u00e9 qu\u2019il existe plusieurs types de m\u00e9duses. Celles actuellement pr\u00e9sentes sur les plages tunisiennes se d\u00e9clinent en deux esp\u00e8ces principales : une grande m\u00e9duse de couleur bleue, impressionnante mais inoffensive, et une autre, plus petite, dont la piq\u00fbre provoque une sensation de br\u00fblure intense sur la peau.<\/p>\n\n\n\n<p><strong>Un ph\u00e9nom\u00e8ne qui pourrait devenir la norme<\/strong><\/p>\n\n\n\n<p>L\u2019apparition pr\u00e9coce des m\u00e9duses sur les c\u00f4tes tunisiennes ne semble plus \u00eatre une exception. En l\u2019absence de mesures fortes pour limiter le r\u00e9chauffement climatique et restaurer les \u00e9cosyst\u00e8mes marins, ces \u00e9pisodes pourraient se r\u00e9p\u00e9ter et s\u2019aggraver.<\/p>\n\n\n\n<p>Face \u00e0 cette r\u00e9alit\u00e9, scientifiques et \u00e9cologistes appellent \u00e0 une meilleure surveillance des eaux, \u00e0 la r\u00e9duction de la pollution c\u00f4ti\u00e8re et \u00e0 une gestion raisonn\u00e9e de la p\u00eache. <\/p>\n\n\n\n<p><strong>Comment se prot\u00e9ger des piq\u00fbres de m\u00e9duses ?<\/strong><\/p>\n\n\n\n<p>En cas de piq\u00fbre, il est recommand\u00e9 d\u2019\u00e9viter de frotter la zone touch\u00e9e avec du sable. Il faut rincer la plaie \u00e0 l\u2019eau de mer, puis retirer les filaments coll\u00e9s \u00e0 la peau. Si la piq\u00fbre provoque une r\u00e9action toxique ou allergique, il est imp\u00e9ratif de se rendre imm\u00e9diatement dans une pharmacie ou un centre de sant\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Depuis d\u00e9but juin, plusieurs plages tunisiennes sont envahies par les m\u00e9duses. Un ph\u00e9nom\u00e8ne pr\u00e9coce, d\u00fb au r\u00e9chauffement de la M\u00e9diterran\u00e9e et \u00e0 la d\u00e9gradation de l\u2019\u00e9cosyst\u00e8me marin. La sc\u00e8ne se r\u00e9p\u00e8te sur de nombreuses plages tunisiennes : des vacanciers surpris par des bancs de m\u00e9duses d\u00e9rivant pr\u00e8s du rivage. Ph\u00e9nom\u00e8ne inhabituel \u00e0 cette p\u00e9riode de [&hellip;]<\/p>\n","protected":false},"author":3191,"featured_media":378464,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[12048,12047,12046,3745,2608],"class_list":["post-378463","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national","tag-ecosysteme-marin","tag-ete-2025","tag-meduses","tag-plages","tag-tunisie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Invasion pr\u00e9coce de m\u00e9duses en Tunisie : Un signal d\u2019alerte pour l\u2019\u00e9t\u00e9 2025 - webdo<\/title>\n<meta name=\"description\" content=\"Les m\u00e9duses sont de retour sur les plages tunisiennes : apprenez-en plus sur leur apparition pr\u00e9coce et ses raisons.\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.webdo.tn\/fr\/actualite\/national\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\/378463\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Invasion pr\u00e9coce de m\u00e9duses en Tunisie : Un signal d\u2019alerte pour l\u2019\u00e9t\u00e9 2025\" \/>\n<meta property=\"og:description\" content=\"Les m\u00e9duses sont de retour sur les plages tunisiennes : apprenez-en plus sur leur apparition pr\u00e9coce et ses raisons.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.webdo.tn\/fr\/actualite\/national\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\/378463\/\" \/>\n<meta property=\"og:site_name\" content=\"webdo\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/webdotn\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-27T08:20:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-29T09:11:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.webdo.tn\/fr\/wp-content\/uploads\/2025\/06\/meduses.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"683\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mohamed Hedi Touati\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@webdo_tn\" \/>\n<meta name=\"twitter:site\" content=\"@webdo_tn\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mohamed Hedi Touati\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/\"},\"author\":{\"name\":\"Mohamed Hedi Touati\",\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/#\\\/schema\\\/person\\\/c652cd8fc2b1b44412b5ffb48c5a911d\"},\"headline\":\"Invasion pr\u00e9coce de m\u00e9duses en Tunisie : Un signal d\u2019alerte pour l\u2019\u00e9t\u00e9 2025\",\"datePublished\":\"2025-06-27T08:20:51+00:00\",\"dateModified\":\"2025-06-29T09:11:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/\"},\"wordCount\":598,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/meduses.jpg\",\"keywords\":[\"\u00e9cosyst\u00e8me marin\",\"\u00e9t\u00e9 2025\",\"m\u00e9duses\",\"plages\",\"Tunisie\"],\"articleSection\":[\"National\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/\",\"url\":\"https:\\\/\\\/www.webdo.tn\\\/fr\\\/actualite\\\/national\\\/invasion-precoce-de-meduses-en-tunisie-un-signal-dalerte-pour-lete-2025\\\/378463\\\/\",\"name\":\"Invasion pr\u00e9coce de m\u00e9duses en Tunisie : Un signal d\u2019alerte pour l\u2019\u00e9t\u00e9 2025 - 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