{"id":25949,"date":"2024-06-02T12:00:53","date_gmt":"2024-06-02T10:00:53","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=25949"},"modified":"2024-05-30T09:00:03","modified_gmt":"2024-05-30T07:00:03","slug":"la-terre-vue-de-lespace-un-tourbillon-dalgues-se-developpe-au-coeur-dune-vaste-zone-morte-de-la-baltique","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/la-terre-vue-de-lespace-un-tourbillon-dalgues-se-developpe-au-coeur-dune-vaste-zone-morte-de-la-baltique\/","title":{"rendered":"La Terre vue de l&rsquo;espace : Un tourbillon d&rsquo;algues se d\u00e9veloppe au c\u0153ur d&rsquo;une vaste \u00ab zone morte \u00bb de la Baltique"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>L&rsquo;ann\u00e9e 2018 a \u00e9t\u00e9 marqu\u00e9e par l&rsquo;apparition d&rsquo;une \u00e9tonnante spirale de cyanobact\u00e9ries dans la mer Baltique. La masse tourbillonnante de microbes a contribu\u00e9 \u00e0 cr\u00e9er une \u00ab zone morte \u00bb massive de la taille de la Virginie-Occidentale qui a r\u00e9duit l&rsquo;oxyg\u00e8ne de l&rsquo;eau avoisinante.<\/p>\n<p>Cette spirale verte impressionnante est apparue dans la mer Baltique lors d&rsquo;une prolif\u00e9ration massive d&rsquo;algues en 2018. Si les microbes tourbillonnants sont d&rsquo;une beaut\u00e9 surnaturelle sur l&rsquo;image, cela cache un grave danger qu&rsquo;ils ont provoqu\u00e9 en cr\u00e9ant une \u00ab zone morte \u00bb massive et toxique.<\/p>\n<p>Selon l&rsquo;Observatoire de la Terre de la NASA, la grande spirale, d&rsquo;une largeur d&rsquo;environ 25 kilom\u00e8tres \u00e0 son point le plus large, est apparue dans le golfe de Finlande, un bras de la mer Baltique situ\u00e9 entre la Finlande, l&rsquo;Estonie et la Russie. Le tourbillon \u00e9tait principalement constitu\u00e9 de minuscules bact\u00e9ries marines photosynth\u00e9tiques, appel\u00e9es cyanobact\u00e9ries, ainsi que de plancton \u00e0 carapace de verre, appel\u00e9 diatom\u00e9e.<\/p>\n<p>Cette masse de cr\u00e9atures microscopiques a \u00e9t\u00e9 pi\u00e9g\u00e9e dans un grand vortex, ou tourbillon, cr\u00e9\u00e9 par la collision de deux courants oppos\u00e9s. Il est courant que les algues soient emport\u00e9es par les courants oc\u00e9aniques, cr\u00e9ant ainsi des paysages marins \u00e9poustouflants vus d&rsquo;en haut. Cependant, il est rare de voir une spirale aussi parfaitement form\u00e9e.<\/p>\n<p>Les algues prolif\u00e8rent naturellement dans cette r\u00e9gion de la mer chaque \u00e9t\u00e9 lorsque le brassage vertical de l&rsquo;oc\u00e9an fait remonter une abondance de nutriments \u00e0 la surface. Toutefois, au cours des derni\u00e8res d\u00e9cennies, la taille et la fr\u00e9quence de ces efflorescences ont explos\u00e9 \u00e0 mesure que des nutriments suppl\u00e9mentaires provenant des activit\u00e9s humaines, telles que le ruissellement agricole, ont \u00e9t\u00e9 d\u00e9vers\u00e9s dans l&rsquo;eau.<\/p>\n<figure id=\"attachment_25950\" aria-describedby=\"caption-attachment-25950\" style=\"width: 970px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25950\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/la-terre-vue-de-lespace-un-tourbillon-dalgues-se-developpe-au-coeur-dune-vaste-zone-morte-de-la-baltique\/la-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?fit=970%2C546&amp;ssl=1\" data-orig-size=\"970,546\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"La spirale de cyanobact\u00e9ries faisait partie d&amp;rsquo;une prolif\u00e9ration d&amp;rsquo;algues\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;La spirale de cyanobact\u00e9ries faisait partie d&amp;rsquo;une prolif\u00e9ration d&amp;rsquo;algues beaucoup plus importante qui a recouvert une grande partie du golfe de Finlande. (Cr\u00e9dit photo : NASA Earth Observatory\/Landsat)&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?fit=300%2C169&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=970%2C546&#038;ssl=1\" alt=\"\" width=\"970\" height=\"546\" class=\"size-full wp-image-25950\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?w=970&amp;ssl=1 970w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=800%2C450&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=580%2C326&amp;ssl=1 580w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.jpg?resize=174%2C98&amp;ssl=1 174w\" sizes=\"auto, (max-width: 970px) 100vw, 970px\" \/><figcaption id=\"caption-attachment-25950\" class=\"wp-caption-text\">La spirale de cyanobact\u00e9ries faisait partie d&rsquo;une prolif\u00e9ration d&rsquo;algues beaucoup plus importante qui a recouvert une grande partie du golfe de Finlande. (Cr\u00e9dit photo : NASA Earth Observatory\/Landsat)<\/figcaption><\/figure>\n<p>Entre 2003 et 2020, la taille moyenne des efflorescences algales a augment\u00e9 de 13 % \u00e0 l&rsquo;\u00e9chelle mondiale, selon une \u00e9tude r\u00e9alis\u00e9e en 2023.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>Bien que les prolif\u00e9rations d&rsquo;algues puissent \u00eatre visuellement stup\u00e9fiantes, elles peuvent \u00e9galement \u00eatre extr\u00eamement destructrices. Lorsque les algues s&rsquo;accumulent pr\u00e8s de la surface, elles diminuent temporairement la quantit\u00e9 d&rsquo;oxyg\u00e8ne dans les eaux situ\u00e9es en dessous, ce qui risque d&rsquo;asphyxier les cr\u00e9atures marines proches, qui filtrent l&rsquo;oxyg\u00e8ne de l&rsquo;eau pour respirer, d&rsquo;apr\u00e8s la Woods Holes Oceanographic Institution. Les scientifiques appellent souvent ces zones priv\u00e9es d&rsquo;oxyg\u00e8ne des \u00ab zones mortes \u00bb.<\/p>\n<p>\u00c0 mesure que les efflorescences s&rsquo;\u00e9tendent, les zones mortes qui en r\u00e9sultent s&rsquo;agrandissent \u00e9galement. Lorsque cette image a \u00e9t\u00e9 prise en 2018, la zone morte dans le golfe de Finlande couvrait environ 70 000 kilom\u00e8tres carr\u00e9s, soit la m\u00eame superficie que la Virginie-Occidentale, selon l&rsquo;Observatoire de la Terre de la NASA.<\/p>\n<p>Non seulement les zones mortes s&rsquo;\u00e9tendent, mais elles deviennent aussi plus meurtri\u00e8res. L&rsquo;augmentation des temp\u00e9ratures \u00e0 la surface des oc\u00e9ans, due au changement climatique provoqu\u00e9 par l&rsquo;homme, signifie que les couches sup\u00e9rieures des oc\u00e9ans ne peuvent plus contenir autant d&rsquo;oxyg\u00e8ne qu&rsquo;auparavant, ce qui facilite la chute des niveaux d&rsquo;oxyg\u00e8ne jusqu&rsquo;\u00e0 des niveaux dangereux. Une \u00e9tude r\u00e9alis\u00e9e en 2018 a r\u00e9v\u00e9l\u00e9 qu&rsquo;au cours du si\u00e8cle dernier, les niveaux d&rsquo;oxyg\u00e8ne dans la mer Baltique ont atteint leur niveau le plus bas depuis 1 500 ans.<\/p>\n<p>Cet \u00e9t\u00e9, nous assisterons probablement \u00e0 une prolif\u00e9ration d&rsquo;algues plus importante dans le monde entier, gr\u00e2ce aux temp\u00e9ratures de surface record enregistr\u00e9es l&rsquo;ann\u00e9e derni\u00e8re, qui ont \u00e9t\u00e9 partiellement d\u00e9clench\u00e9es par le r\u00e9cent ph\u00e9nom\u00e8ne El Ni\u00f1o.<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" rel=\"noopener\" target=\"_blank\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/www.livescience.com\/planet-earth\/rivers-oceans\/earth-from-space-ethereal-algal-vortex-blooms-at-the-heart-of-massive-baltic-dead-zone\" rel=\"noopener\" target=\"_blank\">https:\/\/www.livescience.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"25949\">(204)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>L&rsquo;ann\u00e9e 2018 a \u00e9t\u00e9 marqu\u00e9e par l&rsquo;apparition d&rsquo;une \u00e9tonnante spirale de cyanobact\u00e9ries dans la mer Baltique. La masse tourbillonnante de&#8230;<\/p>\n","protected":false},"author":1,"featured_media":25951,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[28],"tags":[450,5394,5455,3220],"class_list":["post-25949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pollution","tag-algues","tag-finlande","tag-mer-baltique","tag-zones-mortes","wpcat-28-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/La-spirale-de-cyanobacteries-faisait-partie-dune-proliferation-dalgues.webp?fit=650%2C366&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-6Kx","jetpack-related-posts":[{"id":26539,"url":"https:\/\/www.laterredufutur.com\/accueil\/lile-aux-ours-une-ile-radioactive-du-svalbard-entouree-de-nuages-tourbillonnants-et-dune-proliferation-dalgues-geantes\/","url_meta":{"origin":25949,"position":0},"title":"L&rsquo;\u00eele aux ours, une \u00eele radioactive du Svalbard, entour\u00e9e de nuages \u200b\u200btourbillonnants et d&rsquo;une prolif\u00e9ration d&rsquo;algues g\u00e9antes","author":"Admin","date":"16 janvier 2025","format":false,"excerpt":"Une image satellite datant de 2023 a captur\u00e9 deux ph\u00e9nom\u00e8nes \u00e9tranges peignant des tourbillons parall\u00e8les dans la mer et le ciel autour de l'\u00eele des Ours en Norv\u00e8ge, qui est entour\u00e9e d'eaux extr\u00eamement radioactives laiss\u00e9es par un sous-marin sovi\u00e9tique qui a fait naufrage. Cette photo satellite saisissante montre deux ph\u00e9nom\u00e8nes\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/01\/lile-aux-Ours.webp?fit=650%2C366&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/01\/lile-aux-Ours.webp?fit=650%2C366&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/01\/lile-aux-Ours.webp?fit=650%2C366&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":26432,"url":"https:\/\/www.laterredufutur.com\/accueil\/traces-dun-glissement-de-terrain-geant-dans-le-sud-de-la-mer-baltique-des-chercheurs-etudient-un-eventuel-tsunami\/","url_meta":{"origin":25949,"position":1},"title":"Traces d&rsquo;un glissement de terrain g\u00e9ant dans le sud de la mer Baltique &#8211; des chercheurs \u00e9tudient un \u00e9ventuel tsunami","author":"Admin","date":"3 d\u00e9cembre 2024","format":false,"excerpt":"Au large de la c\u00f4te de Blekinge, dans le sud de la Su\u00e8de, \u00e0 une profondeur d'environ 50-60 m\u00e8tres, les s\u00e9diments du plancher oc\u00e9anique pr\u00e9sentent des cicatrices de plusieurs dizaines de kilom\u00e8tres de long qui semblent avoir \u00e9t\u00e9 caus\u00e9es par un \u00e9norme glissement de terrain sous-marin. Cependant, on ne sait\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/11\/glissement-oceanique.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/11\/glissement-oceanique.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/11\/glissement-oceanique.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/11\/glissement-oceanique.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4636,"url":"https:\/\/www.laterredufutur.com\/accueil\/dans-locean-mondial-les-zones-mortes-setendent-rapidement\/","url_meta":{"origin":25949,"position":2},"title":"Dans l&rsquo;oc\u00e9an mondial, les zones mortes s\u2019\u00e9tendent rapidement","author":"Admin","date":"13 octobre 2008","format":false,"excerpt":"L\u2019extension des \u00ab zones mortes \u00bb, r\u00e9gions oc\u00e9aniques o\u00f9 l'oxyg\u00e8ne devient trop rare pour les organismes vivants, a d\u00e9j\u00e0 \u00e9t\u00e9 rapport\u00e9e. Mais une nouvelle \u00e9tude r\u00e9v\u00e8le un impact beaucoup plus s\u00e9v\u00e8re \u00e0 court terme sur les \u00e9cosyst\u00e8mes. Observ\u00e9es depuis la fin des ann\u00e9es 1990 par les Etats-Unis et en mer\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/zones-mortes.jpg?fit=800%2C878&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/zones-mortes.jpg?fit=800%2C878&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/zones-mortes.jpg?fit=800%2C878&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/zones-mortes.jpg?fit=800%2C878&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":6385,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-gigantesques-zones-mortes-decouvertes-au-milieu-de-latlantique\/","url_meta":{"origin":25949,"position":3},"title":"De gigantesques \u00ab\u00a0zones mortes\u00a0\u00bb d\u00e9couvertes au milieu de l&rsquo;Atlantique","author":"Admin","date":"12 mai 2015","format":false,"excerpt":"Les \"zones mortes\" r\u00e9cemment d\u00e9tect\u00e9es au milieu de l'Oc\u00e9an Atlantique se forment dans des tourbillons analogues \u00e0 celui ci-dessus, en bleu. Cr\u00e9dits : NASA Earth Observatory Des chercheurs ont d\u00e9couvert dans l'Oc\u00e9an Atlantique l'existence de zones se caract\u00e9risant par des taux d'oxyg\u00e8ne si bas qu'ils y interdisent toute forme de\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/zone-morte-atlantique.jpg?fit=600%2C288&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/zone-morte-atlantique.jpg?fit=600%2C288&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/zone-morte-atlantique.jpg?fit=600%2C288&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":16586,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-zone-morte-de-la-mer-darabie-est-devnue-la-plus-grande-du-monde\/","url_meta":{"origin":25949,"position":4},"title":"La \u00abzone morte\u00bb de la mer d&rsquo;Arabie est devenue la plus grande du monde","author":"Admin","date":"12 mai 2018","format":false,"excerpt":"Une \"zone morte\" massive dans la mer d'Arabie est devenue la plus grande du monde, selon une nouvelle \u00e9tude. Les zones mortes sont des r\u00e9gions oc\u00e9aniques priv\u00e9es d'oxyg\u00e8ne o\u00f9 peu d'organismes peuvent survivre. Ils \u00e9mergent dans des profondeurs oc\u00e9aniques allant de 200 \u00e0 800 m\u00e8tres, lorsque des influx de nutriments\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/golfeoman.jpg?fit=750%2C480&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/golfeoman.jpg?fit=750%2C480&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/golfeoman.jpg?fit=750%2C480&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/golfeoman.jpg?fit=750%2C480&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2750,"url":"https:\/\/www.laterredufutur.com\/accueil\/zone-morte\/","url_meta":{"origin":25949,"position":5},"title":"Zone Morte","author":"Admin","date":"20 mars 2005","format":false,"excerpt":"Imaginez un monde o\u00f9 les oc\u00e9ans ne poss\u00e8deraient plus de vie. Imaginez un monde o\u00f9 l'oxyg\u00e8ne aurait disparu dans les mers. Imaginez un monde o\u00f9 se nourrir de poissons marins n'appartiendrait seulement qu'au pass\u00e9. Imaginez vous un monde o\u00f9 ce paysage idyllique appartiendrait aux r\u00eaves. Alors n'imaginez plus et soyez\u2026","rel":"","context":"Dans &quot;Pollution&quot;","block_context":{"text":"Pollution","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/pollution\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/gulf-of-mexico-noaa.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=25949"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25949\/revisions"}],"predecessor-version":[{"id":25952,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25949\/revisions\/25952"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/25951"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=25949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=25949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=25949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}