{"id":31597,"date":"2023-04-09T13:33:49","date_gmt":"2023-04-09T13:33:49","guid":{"rendered":"https:\/\/bluetunisia.com\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/"},"modified":"2025-07-22T15:20:35","modified_gmt":"2025-07-22T15:20:35","slug":"le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine","status":"publish","type":"post","link":"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/","title":{"rendered":"Le r\u00e9chauffement des mers de Tunisie : Une menace pour la biodiversit\u00e9 marine"},"content":{"rendered":"\n<p style=\"font-size:17px\"><strong>La mer M\u00e9diterran\u00e9e, destination touristique renomm\u00e9e et source vitale de nourriture pour des millions de personnes, est menac\u00e9e par le changement climatique. <a href=\"https:\/\/bluetunisia.com\/6287-2022\/tensions-geopolitiques-et-crise-climatique-perils-imminents-sur-les-oceans\/\">La hausse des temp\u00e9ratures et l&rsquo;\u00e9volution des conditions m\u00e9t\u00e9orologiques ont de graves r\u00e9percussions sur la vie marine dans la r\u00e9gion<\/a>. Un rapport r\u00e9cent de la <a href=\"https:\/\/www.ciesm.org\/news\/ciesm\/261208.htm\">Commission scientifique m\u00e9diterran\u00e9enne<\/a> r\u00e9v\u00e8le que la temp\u00e9rature moyenne de la surface de la mer en M\u00e9diterran\u00e9e a augment\u00e9 de pr\u00e8s de 1,5 \u00b0C au cours du si\u00e8cle dernier. Ce ph\u00e9nom\u00e8ne a entra\u00een\u00e9 un d\u00e9clin de la biodiversit\u00e9 marine, de nombreuses esp\u00e8ces ne pouvant plus survivre dans leurs habitats traditionnels.  <\/strong> <\/p>\n\n<p style=\"font-size:17px\">La <a href=\"https:\/\/en.wikipedia.org\/wiki\/Tunisia\">Tunisie<\/a> subit des impacts significatifs sur sa biodiversit\u00e9 marine en raison du changement climatique. Une \u00e9tude publi\u00e9e dans la revue Aquatic Conservation : Marine and Freshwater Ecosystems a r\u00e9v\u00e9l\u00e9 que l&rsquo;augmentation des temp\u00e9ratures de la mer et la modification de la chimie des oc\u00e9ans ont des r\u00e9percussions importantes sur la biodiversit\u00e9 marine de la Tunisie. Les herbiers marins et d&rsquo;autres habitats essentiels disparaissent, entra\u00eenant le d\u00e9clin de nombreuses esp\u00e8ces de poissons et d&rsquo;invert\u00e9br\u00e9s. Une autre \u00e9tude publi\u00e9e dans la <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0173559\">revue PLOS ONE<\/a> a r\u00e9v\u00e9l\u00e9 que l&rsquo;augmentation des temp\u00e9ratures de surface de la mer entra\u00eene des changements dans l&rsquo;abondance et la distribution de certaines esp\u00e8ces de zooplancton, qui constituent une source de nourriture importante pour de nombreux organismes marins en Tunisie. En outre, la p\u00e9riode de frai de certaines esp\u00e8ces de poissons, comme l&rsquo;<a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/gcb.14418\">anchois europ\u00e9en et la sardine, s<\/a> &lsquo;est d\u00e9cal\u00e9e de deux semaines au cours des derni\u00e8res d\u00e9cennies, probablement en raison de l&rsquo;\u00e9volution des temp\u00e9ratures de la mer.    <\/p>\n\n<p>Pour mieux comprendre ce ph\u00e9nom\u00e8ne, nous sommes all\u00e9s \u00e0 la rencontre de Mohamed Salah Ben Romdhane, Professeur \u00e0 l&rsquo;Institut National Agronomique de Tunisie et sp\u00e9cialiste de l&rsquo;impact du changement climatique sur la biodiversit\u00e9 marine<em>. <\/em>qui vous expliquera plus en d\u00e9tail les impacts de la crise climatique sur la biodiversit\u00e9 marine \u00e0 Tunis.<\/p>\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How the climate change impacts the Sea in Tunisia?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/eybA6C0Kit4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><\/figure>\n\n<p style=\"font-size:17px\">Selon une \u00e9tude publi\u00e9e dans la revue PLOS ONE, <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0185000\">la biodiversit\u00e9 marine de la M\u00e9diterran\u00e9e a diminu\u00e9 de pr\u00e8s de 34 %<\/a> au cours des 50 derni\u00e8res ann\u00e9es, le changement climatique \u00e9tant un facteur important. L&rsquo;augmentation des temp\u00e9ratures de la mer a entra\u00een\u00e9 la disparition de certaines esp\u00e8ces, comme les herbiers marins et certaines esp\u00e8ces de poissons, tandis que d&rsquo;autres esp\u00e8ces ont \u00e9t\u00e9 contraintes de se d\u00e9placer vers d&rsquo;autres zones pour survivre. Selon une \u00e9tude publi\u00e9e dans la<a href=\"https:\/\/www.nature.com\/articles\/nclimate2959\"> revue Nature Climate Change, la<\/a> M\u00e9diterran\u00e9e est l&rsquo;une des r\u00e9gions du monde les plus vuln\u00e9rables aux effets du changement climatique sur la biodiversit\u00e9 marine. Jusqu&rsquo;\u00e0 50 % des esp\u00e8ces marines pourraient dispara\u00eetre d&rsquo;ici la fin du si\u00e8cle.   <\/p>\n\n<p style=\"font-size:17px\">L<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2352485515300116\">&lsquo;acidification de la mer M\u00e9diterran\u00e9e<\/a> est \u00e9galement une pr\u00e9occupation importante pour la biodiversit\u00e9 marine. Lorsque le dioxyde de carbone est absorb\u00e9 par l&rsquo;oc\u00e9an, il r\u00e9agit avec l&rsquo;eau de mer pour cr\u00e9er de l&rsquo;acide carbonique, ce qui complique la construction des coquilles et des squelettes de nombreuses esp\u00e8ces. Ce ph\u00e9nom\u00e8ne peut avoir des cons\u00e9quences d\u00e9vastatrices pour des esp\u00e8ces telles que les coraux et les mollusques. Une \u00e9tude publi\u00e9e dans la <a href=\"https:\/\/www.sciencedirect.com\/journal\/marine-pollution-bulletin\/vol\/178\/suppl\/C\">revue Marine Pollution Bulletin<\/a> a r\u00e9v\u00e9l\u00e9 que la M\u00e9diterran\u00e9e s&rsquo;acidifie \u00e0 un rythme cinq fois plus rapide que la moyenne mondiale.   <\/p>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"945\" height=\"448\" src=\"https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/Western-Mediterranean-exceptionally-high-temperatures-observed-by-Mercator-Ocean-Mercator-Ocean-2.png\" alt=\"Une carte montrant l'augmentation de la temp&#xE9;rature de la mer M&#xE9;diterran&#xE9;e  \" class=\"wp-image-6925\" srcset=\"https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/Western-Mediterranean-exceptionally-high-temperatures-observed-by-Mercator-Ocean-Mercator-Ocean-2.png 945w, https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/Western-Mediterranean-exceptionally-high-temperatures-observed-by-Mercator-Ocean-Mercator-Ocean-2-300x142.png 300w, https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/Western-Mediterranean-exceptionally-high-temperatures-observed-by-Mercator-Ocean-Mercator-Ocean-2-768x364.png 768w, https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/Western-Mediterranean-exceptionally-high-temperatures-observed-by-Mercator-Ocean-Mercator-Ocean-2-600x284.png 600w\" sizes=\"(max-width: 945px) 100vw, 945px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/www.mercator-ocean.eu\/en\/news\/temperatures-mediterranee\/\">M\u00e9diterran\u00e9e occidentale : temp\u00e9ratures exceptionnellement \u00e9lev\u00e9es observ\u00e9es par Mercator Oc\u00e9an. Source : Mercator Oc\u00e9an : Mercator Oc\u00e9an <\/a><\/figcaption><\/figure>\n\n<p style=\"font-size:17px\">L&rsquo;impact le plus important du changement climatique sur la vie marine en M\u00e9diterran\u00e9e est la prolif\u00e9ration d&rsquo;<a href=\"https:\/\/bluetunisia.com\/6430-2022\/alien-species-from-underwater-world-the-greatest-threats-to-the-biodiversity-in-the-tunisian-coasts\/\">esp\u00e8ces invasives<\/a>. Avec l&rsquo;augmentation de la temp\u00e9rature de la mer, les esp\u00e8ces provenant d&rsquo;eaux plus chaudes migrent vers le nord, perturbant des \u00e9cosyst\u00e8mes entiers et mena\u00e7ant la survie des esp\u00e8ces indig\u00e8nes. En outre, le changement climatique entra\u00eene des modifications dans le calendrier des \u00e9v\u00e9nements \u00e9cologiques cruciaux, tels que le frai et la migration de certaines esp\u00e8ces. Par exemple, la saison de frai du thon rouge en M\u00e9diterran\u00e9e s&rsquo;est d\u00e9cal\u00e9e de pr\u00e8s de deux semaines au cours des derni\u00e8res d\u00e9cennies, selon une \u00e9tude publi\u00e9e dans la revue Global Change Biology. Une \u00e9tude publi\u00e9e dans la revue Biological Invasions a r\u00e9v\u00e9l\u00e9 que les esp\u00e8ces envahissantes se propagent \u00e0 un rythme alarmant en M\u00e9diterran\u00e9e, plus de 1 000 nouvelles esp\u00e8ces ayant \u00e9t\u00e9 recens\u00e9es dans la r\u00e9gion au cours du si\u00e8cle dernier. L&rsquo;augmentation des temp\u00e9ratures de la mer est l&rsquo;un des principaux moteurs de cette tendance, car elle permet aux esp\u00e8ces des eaux plus chaudes de migrer vers le nord et de s&rsquo;\u00e9tablir dans de nouvelles zones.    <\/p>\n\n<p style=\"font-size:17px\">Des mesures urgentes sont n\u00e9cessaires pour faire face au probl\u00e8me du changement climatique en mer M\u00e9diterran\u00e9e. Il est essentiel de r\u00e9duire les \u00e9missions de gaz \u00e0 effet de serre et de prot\u00e9ger les posidonies en cr\u00e9ant davantage de zones prot\u00e9g\u00e9es afin de pr\u00e9server les esp\u00e8ces et les \u00e9cosyst\u00e8mes vuln\u00e9rables.   <\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n<p>Sources :  <\/p>\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2352485515300116\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2352485515300116<\/a><\/li>\n\n\n\n<li class=\"has-small-font-size\"><a href=\"https:\/\/www.sciencedirect.com\/journal\/marine-pollution-bulletin\/vol\/178\/suppl\/C\">https:\/\/www.sciencedirect.com\/journal\/marine-pollution-bulletin\/vol\/178\/suppl\/C<\/a><\/li>\n\n\n\n<li class=\"has-small-font-size\">\u00c9tude PLOS ONE sur le d\u00e9clin de la biodiversit\u00e9 marine en M\u00e9diterran\u00e9e <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0185000\">: https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0185000<\/a><\/li>\n\n\n\n<li class=\"has-small-font-size\">\u00c9tude de Nature Climate Change sur la vuln\u00e9rabilit\u00e9 de la biodiversit\u00e9 marine m\u00e9diterran\u00e9enne <a href=\"https:\/\/www.nature.com\/articles\/nclimate2959\">: https:\/\/www.nature.com\/articles\/nclimate2959<\/a><\/li>\n\n\n\n<li class=\"has-small-font-size\">\u00c9tude de biologie du changement global sur le d\u00e9placement de la saison de frai des sardines en M\u00e9diterran\u00e9e <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/gcb.14418\">: https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/gcb.14418<\/a><\/li>\n<\/ul>\n\n<p class=\"has-small-font-size\"><em>Cet article a \u00e9t\u00e9 r\u00e9dig\u00e9 en collaboration avec le <a href=\"https:\/\/earthjournalism.net\/projects\/mediterranean-media-initiative-building-expert-marine-reporting-capacity-of-journalists-in\">projet Earth Journalism Media Mediterranean Initiative.<\/a><\/em><\/p>\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-small-font-size\"><em>Copyright \u00a9 2022 Blue Tunisia. Tous droits r\u00e9serv\u00e9s <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La mer M\u00e9diterran\u00e9e, destination touristique renomm\u00e9e et source vitale de nourriture pour des millions de personnes, est menac\u00e9e par le changement climatique. La hausse des temp\u00e9ratures et l&rsquo;\u00e9volution des conditions m\u00e9t\u00e9orologiques ont de graves r\u00e9percussions sur la vie marine dans la r\u00e9gion. Un rapport r\u00e9cent de la Commission scientifique m\u00e9diterran\u00e9enne r\u00e9v\u00e8le que la temp\u00e9rature moyenne [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":29492,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"pmpro_default_level":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[167],"tags":[],"coauthors":[],"class_list":["post-31597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","pmpro-has-access"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le r\u00e9chauffement des mers de Tunisie : Une menace pour la biodiversit\u00e9 marine - Blue Tunisia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le r\u00e9chauffement des mers de Tunisie : Une menace pour la biodiversit\u00e9 marine - Blue Tunisia\" \/>\n<meta property=\"og:description\" content=\"La mer M\u00e9diterran\u00e9e, destination touristique renomm\u00e9e et source vitale de nourriture pour des millions de personnes, est menac\u00e9e par le changement climatique. La hausse des temp\u00e9ratures et l&rsquo;\u00e9volution des conditions m\u00e9t\u00e9orologiques ont de graves r\u00e9percussions sur la vie marine dans la r\u00e9gion. Un rapport r\u00e9cent de la Commission scientifique m\u00e9diterran\u00e9enne r\u00e9v\u00e8le que la temp\u00e9rature moyenne [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\" \/>\n<meta property=\"og:site_name\" content=\"Blue Tunisia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Blue.Tunisia\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-04-09T13:33:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-22T15:20:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/kate-estes-4e4wPvRZ_9Q-unsplash-1-scaled-2.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Mayssa Sandli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Blue___tn\" \/>\n<meta name=\"twitter:site\" content=\"@Blue___tn\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mayssa Sandli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n\t<meta name=\"twitter:label3\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data3\" content=\"Mayssa Sandli\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\"},\"author\":{\"name\":\"Mayssa Sandli\",\"@id\":\"https:\/\/bluetunisia.com\/fr\/#\/schema\/person\/04c0ab81b684ee0c966d895d1571d1a0\"},\"headline\":\"Le r\u00e9chauffement des mers de Tunisie : Une menace pour la biodiversit\u00e9 marine\",\"datePublished\":\"2023-04-09T13:33:49+00:00\",\"dateModified\":\"2025-07-22T15:20:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\"},\"wordCount\":1048,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/bluetunisia.com\/fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/bluetunisia.com\/wp-content\/uploads\/2023\/04\/kate-estes-4e4wPvRZ_9Q-unsplash-1-scaled-2.webp\",\"articleSection\":[\"News\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\",\"url\":\"https:\/\/bluetunisia.com\/fr\/le-rechauffement-des-mers-de-tunisie-une-menace-pour-la-biodiversite-marine\/\",\"name\":\"Le r\u00e9chauffement des mers de Tunisie : Une menace pour la biodiversit\u00e9 marine - 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