{"id":37502,"date":"2026-07-25T13:58:00","date_gmt":"2026-07-25T11:58:00","guid":{"rendered":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/?p=37502"},"modified":"2026-07-31T10:27:31","modified_gmt":"2026-07-31T08:27:31","slug":"kalliste-la-posidonie-sur-nos-plages-pas-de-quoi-bisquer","status":"publish","type":"post","link":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/2026\/07\/25\/kalliste-la-posidonie-sur-nos-plages-pas-de-quoi-bisquer\/","title":{"rendered":"[Kallist\u00e9] La posidonie sur nos plages&nbsp;: pas de quoi bisquer&nbsp;!"},"content":{"rendered":"<div class=\"paragraph\">\n<p>Chaque \u00e9t\u00e9, les feuilles brunes accumul\u00e9es sur certaines plages corses provoquent les m\u00eames r\u00e9actions. Elles sont parfois accus\u00e9es de g\u00e2cher le paysage, de d\u00e9gager une odeur d\u00e9sagr\u00e9able ou de salir le sable. Pourtant, la posidonie n\u2019est ni une algue ni un d\u00e9chet, mais une v\u00e9ritable plante \u00e0 fleurs qui pousse uniquement en M\u00e9diterran\u00e9e.<\/p>\n<p>Sous la mer, elle forme de vastes herbiers, comparables \u00e0 des for\u00eats sous-marines. Ils oxyg\u00e8nent l\u2019eau, stockent du carbone et offrent nourriture, abri et lieu de reproduction \u00e0 de nombreuses esp\u00e8ces. Ils contribuent \u00e9galement \u00e0 stabiliser les fonds marins.<\/p>\n<p>Comme les arbres perdent leurs feuilles, la posidonie renouvelle naturellement les siennes. Les feuilles mortes sont alors ramen\u00e9es vers le rivage par les vagues et forment ce que l\u2019on appelle des \u00ab\u00a0banquettes\u00a0\u00bb. En amortissant la houle et en retenant le sable, celles-ci constituent une protection naturelle contre l\u2019\u00e9rosion.<\/p>\n<p><b>Une esp\u00e8ce prot\u00e9g\u00e9e qui prot\u00e8ge les plages<\/b><\/p>\n<p>Leur pr\u00e9sence est donc parfaitement normale et t\u00e9moigne g\u00e9n\u00e9ralement de l\u2019existence d\u2019herbiers \u00e0 proximit\u00e9. Un rivage enti\u00e8rement d\u00e9barrass\u00e9 de ses \u00e9l\u00e9ments naturels n\u2019est pas forc\u00e9ment plus propre ni en meilleure sant\u00e9.<\/p>\n<p>\u00c0 Santa Giulia, pr\u00e8s de Porto-Vecchio, deux op\u00e9rations m\u00e9canis\u00e9es ont r\u00e9cemment suscit\u00e9 des interrogations. Comme l\u2019a indiqu\u00e9 <i>Corse-Matin<\/i>, elles avaient bien \u00e9t\u00e9 autoris\u00e9es. Cet \u00e9pisode rappelle n\u00e9anmoins que la posidonie est une esp\u00e8ce prot\u00e9g\u00e9e, y compris lorsqu\u2019elle est \u00e9chou\u00e9e, et que sa gestion doit rester strictement encadr\u00e9e et adapt\u00e9e \u00e0 chaque site.<\/p>\n<p>Alors, si quelques feuilles brunes s\u2019invitent au bord de votre serviette, inutile de bisquer\u00a0: elles ne salissent pas le littoral. Elles racontent la vie de la M\u00e9diterran\u00e9e et contribuent surtout \u00e0 prot\u00e9ger nos plages.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"Chaque &eacute;t&eacute;, les feuilles brunes accumul&eacute;es sur certaines plages corses provoquent les m&ecirc;mes r&eacute;actions. Elles sont parfois accus&eacute;es de g&acirc;cher le paysage, de d&eacute;gager une odeur &#8230;","protected":false},"author":1,"featured_media":37503,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3926,3924,333,20],"tags":[84,2632,2524,109,128,888,83,988,2001],"news-destination":[3944],"news-source":[475],"is_homepage":[],"ta_other":[],"class_list":["post-37502","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accueil-merge","category-accueil-second","category-environnement","category-societe","tag-biodiversite","tag-chronique-corse","tag-corse","tag-littoral","tag-mediterranee","tag-plages","tag-posidonie","tag-week-end","tag-weekend","news-destination-homepage","news-source-website"],"_links":{"self":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/37502","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/comments?post=37502"}],"version-history":[{"count":1,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/37502\/revisions"}],"predecessor-version":[{"id":37504,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/37502\/revisions\/37504"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media\/37503"}],"wp:attachment":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media?parent=37502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/categories?post=37502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/tags?post=37502"},{"taxonomy":"news-destination","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-destination?post=37502"},{"taxonomy":"news-source","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-source?post=37502"},{"taxonomy":"is_homepage","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/is_homepage?post=37502"},{"taxonomy":"ta_other","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/ta_other?post=37502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}