{"id":4625,"date":"2026-01-06T16:01:34","date_gmt":"2026-01-06T15:01:34","guid":{"rendered":"https:\/\/martinique2050.com\/dossier-sargasses-un-fleau-et-une-ressource\/"},"modified":"2026-07-13T14:11:56","modified_gmt":"2026-07-13T18:11:56","slug":"dossier-sargasses-un-fleau-et-une-ressource","status":"publish","type":"post","link":"https:\/\/martinique2050.com\/en\/dossier-sargasses-un-fleau-et-une-ressource\/","title":{"rendered":"Feature: Sargassum: A Scourge and a Resource\u2026"},"content":{"rendered":"<div class=\"entry-content\">\n<blockquote class=\"quote-solid\">\n<p><strong>Since 2011, there have been repeated episodes of massive influxes of Sargassum seaweed, mainly along the Atlantic coast of Martinique, ranging in intensity until the phenomenal peak in December 2017. The stranding of this seaweed along the coastline is an absolute disaster for coastal residents, whether they work in the maritime or tourism industries or are simply local residents. This phenomenon is also an absolute ecological disaster for all species living along our coasts\u2014corals, sea urchins, turtles, shellfish, and juvenile fish\u2014all of which are impacted by the damage caused by the seaweed. Martinique\u2019s biosphere is literally suffocating under the pressure of what are known as the \u00abgolden tides.\u00bb Their massive strandings on our shores and the effects of their decomposition represent unprecedented pollution of the water, air, and landscape, creating a genuine environmental crisis that affects people, animals, equipment, and everything that exists\u2026<\/strong><\/p>\n<\/blockquote>\n<p><strong>As a result of climate change, chemical soil pollution (fertilizers, pesticides), and the intensive exploitation of living organisms (intensive agriculture and livestock farming), this algae is, in a way, presenting us with a fait accompli!<\/strong> Because, for the time being, there is no answer to this question! This phenomenon persists while research is ongoing\u2026 Both government authorities and citizens are in a state of urgency, due to the lack of a long-term outlook on the phenomenon. And local residents, who are heavily affected, are struggling to understand why the solutions used by our Caribbean neighbors aren\u2019t being implemented quickly!<\/p>\n<p><strong>Just as in traditional medicine, we treat the symptom, not the cause of the disease, and we do not take into account its many interconnections with the environment as a whole. For this phenomenon apparently has no local cause and now affects our entire region\u2014from the Americas and the Caribbean all the way to the shores of West Africa!<\/strong> An international conference of countries in the greater region will be organized next October by the Prefect of Martinique, who also serves as the regional prefect, in an effort to share knowledge and experiences. Let us hope that the causes of this scourge will be investigated and that solutions can be found through regional cooperation. In early June, Environment Minister Nicolas Hulot announced his visit. Sargassum seaweed is gradually changing the perspective of people who had previously turned a blind eye to our lifestyles and consumption patterns\u2014which are undoubtedly responsible for its proliferation.<\/p>\n<p><strong>By changing our perspective\u2014precisely\u2014and with advances in research, we may be able to turn this scourge into a resource \u2026<\/strong>After all, Sargassum certainly has a great deal of potential. When it is alive in the ocean, before it washes ashore, it serves as a nursery and provides protection for many species; it is therefore beneficial in its natural state and non-toxic. It promotes biodiversity. We also know that it has the ability to absorb heavy metals, pollutants, and perhaps even chlordecone\u2014it is bioabsorbent\u2026 Could it be used as a soil decontaminant? Gwanael Quenette of the DEAL, in a <a href=\"..\/IMG\/pdf\/Expose_de_M-_Gwanael_QUENETTE_cle0391a3.pdf\">\u00abState of the Art\u00bb<\/a>  The October 2015 report, published in conjunction with Associations Day, discusses potential applications\u2014some under study and others currently being tested\u2014that offer significant added value for composting. Holdex Environnement, based in Le Fran\u00e7ois, has developed a process for composting this seaweed, as has a company in Sainte Lucie. This report highlights its potential as a biofuel for the energy sector and as a plastic substitute, as well as its properties in the cosmetics and pharmaceutical industries\u2026 What if sargassum were, after all, a solution to the pollution problems caused by human activity? <strong>One of our witnesses, an environmentalist, emphasizes the need to establish a specialized research laboratory locally in order to make faster progress, perhaps in cooperation with the other affected countries.<\/strong><\/p>\n<p><strong>Sargassum fluitans and Sargassum natans, now a familiar sight in our landscapes, are sure to remain in the news!<\/strong><\/p>\n<p><strong>Nathalie Laul\u00e9<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3240\" src=\"data:image\/svg+xml,%3Csvg%20xmlns='http:\/\/www.w3.org\/2000\/svg'%20viewBox='0%200%20337%20337'%3E%3C\/svg%3E\" alt=\"\" width=\"337\" height=\"337\" data-lazy-srcset=\"..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-150x150.jpg 150w, ..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-50x50.jpg 50w\" data-lazy-sizes=\"(max-width: 337px) 100vw, 337px\" data-lazy-src=\"..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-150x150.jpg\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3240\" src=\"..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-150x150.jpg\" alt=\"\" width=\"337\" height=\"337\" srcset=\"..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-150x150.jpg 150w, ..\/wp-content\/uploads\/sites\/16\/2018\/05\/IMG_5632-50x50.jpg 50w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\"><\/noscript><\/p>\n<p><strong>Our \u00abSargassum\u00bb feature aims to provide an update on the phenomenon in June 2018, following the massive strandings of recent months. It was written by Kaylan Fagour, Mariska Desmarquis, and Nathalie Laul\u00e9.<\/strong><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><strong>TABLE OF CONTENTS:<\/strong><\/p>\n<p><strong>1\/ Scientific Presentation:<\/strong><\/p>\n<p><a href=\"..\/non-classe\/cest-quoi-les-algues-sargasses-fiche-technique\">\u2013 Technical Specifications<\/a><\/p>\n<p><a href=\"..\/non-classe\/origine-des-algues-sargasses\">\u2013 Origin of Sargassum<\/a><\/p>\n<p><a href=\"..\/non-classe\/hypotheses-sur-levolution-des-sargasses\">\u2013 Scenarios for future developments<\/a><\/p>\n<p><a href=\"..\/non-classe\/avantages-ecosystemiques-des-algues-sargasses\">-Ecosystem benefits<\/a><\/p>\n<p><a href=\"..\/non-classe\/consequences-des-algues-sargasses-sur-les-ecosystemes\">\u2013 Ecosystem-wide consequences<\/a><\/p>\n<p><a href=\"..\/non-classe\/impacts-des-algues-sargasses-sur-la-sante-humaine\">-Impacts on human health<\/a><\/p>\n<p><strong>2\/ Environmental Assessment <\/strong><\/p>\n<p>-Current status of the<a href=\"http:\/\/www.martinique.developpement-durable.gouv.fr\/sargasses-a1174.html\">a DEAL <\/a><\/p>\n<p>\u2013<a href=\"https:\/\/www.martinique.ars.sante.fr\/system\/files\/2017-10\/Sargasses%20Questions%20Def.pdf\"> The Regional Health Agency\u2019s guide, \u201cSargassum Algae Explained\u201d<\/a><\/p>\n<p><a href=\"https:\/\/www.martinique.ars.sante.fr\/sites\/default\/files\/2017-01\/algues%20sargasses_hcspa.pdf\">-Report by the High Council for Public Health: \u201cManagement of Health Risks Associated with Toxic Emissions from Brown Algae Washed Ashore in Martinique and Guadeloupe\u201d<\/a><\/p>\n<p><a href=\"\/en\/\">-A phenomenon closely monitored by Madinin\u2019Air<\/a><\/p>\n<p><strong>3\/ Impacts and Ongoing Actions:<\/strong><\/p>\n<p><a href=\"..\/non-classe\/sargasse-les-impacts-sur-les-populations-de-bord-de-mer\">-Testimonials from coastal communities, residents living along the coast, and maritime professionals who have been affected.<\/a><\/p>\n<p>\u2013<a href=\"..\/non-classe\/les-citoyens-sinforment-et-se-mobilisent-sur-internet\">Ongoing initiatives, petitions, and requests from the public<\/a><\/p>\n<p>\u2013<a href=\"..\/non-classe\/le-barrage-permet-de-contenir-les-sargasses-au-large-et-deviter-leur-decomposition\">Testing of RIS\u2019K Floating Barriers<\/a><\/p>\n<p>\u2013<a href=\"..\/non-classe\/cest-la-solution-ideale-pour-travailler-dans-toutes-les-zones-sensibles\">TRUXOR At-Sea Collection Trial<\/a><\/p>\n<p><strong>4\/ Actions Taken by the Authorities<\/strong><\/p>\n<p><a href=\"..\/non-classe\/au-francois-le-littoral-etouffe-sous-les-algues-en-decomposition\">-The perspective of the mayor of Le Fran\u00e7ois, a town that has been heavily affected<\/a><\/p>\n<p><a href=\"..\/non-classe\/le-plan-durgence-sargasses-du-gouvernement\">-The Sargassum Emergency Plan: Announcements by the Prefect<\/a><\/p>\n<p><a href=\"..\/non-classe\/sargasses-un-debut-de-reponse-pour-les-riverains-du-francois\">-Cleanup in one of the hardest-hit areas, the Fr\u00e9gate Est 2 neighborhood in Le Fran\u00e7ois; on-site interview with the subprefect of Le Marin.<\/a><\/p>\n<p><a href=\"http:\/\/www.martinique.pref.gouv.fr\/Politiques-publiques\/Environnement-sante-publique\/Sargasses\/Les-experimentations\">\u2013 Announcements from the Prefecture regarding ongoing pilot programs<\/a><\/p>\n<p><a href=\"https:\/\/www.facebook.com\/prefet.martinique\/videos\/1992899560734486\/\">-FB Prefecture on the resources currently deployed<\/a><\/p>\n<p><strong> <\/strong><strong>5. Recycling Solutions<\/strong><\/p>\n<p>\u2013<a href=\"..\/non-classe\/compte-rendu-des-actions-menees-dans-la-caraibe\">Report on Activities Carried Out in the Caribbean<\/a><\/p>\n<p><a href=\"..\/non-classe\/holdex-environnement-une-solution-de-valorisation-des-sargasses-100-martiniquaise\">-Composting fresh seaweed with Holdex Environnement<\/a><\/p>\n<p>\u2013<a href=\"..\/non-classe\/des-revetements-de-plafonds-resistants-au-gaz-des-sargasses\">Cabex paneling for protection against H2S gas<\/a><\/p>\n<p><strong>See also:<\/strong><\/p>\n<p><a href=\"\/en\/\">-\u201cSargassum: A Scourge from Afar\u201d by Ludovic Louis and Pascal Saffache<\/a><\/p>\n<p><strong> <\/strong><\/p>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Depuis 2011, les \u00e9pisodes d\u2019arriv\u00e9es massives de bancs d\u2019algues sargasses, principalement sur la c\u00f4te Atlantique de la Martinique, se sont succ\u00e9d\u00e9s avec plus ou moins de force, jusqu\u2019au pic ph\u00e9nom\u00e9nal de d\u00e9cembre 2017. L\u2019\u00e9chouage de ces algues sur le littoral est une absolue catastrophe pour les riverains du bord de mer, qu\u2019ils soient professionnels de &hellip;<\/p>","protected":false},"author":1,"featured_media":5873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","footnotes":""},"categories":[1187,1576],"tags":[1337,1338,1339,1340,1341,1288],"class_list":["post-4625","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-sante-qualite-de-vie","tag-dossier","tag-enquete","tag-etat-des-lieux","tag-fleau","tag-ressource","tag-sargasse"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dossier: Sargasses, un fl\u00e9au et une ressource\u2026 - 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