{"id":7970,"date":"2026-04-22T06:51:35","date_gmt":"2026-04-22T10:51:35","guid":{"rendered":"https:\/\/martinique2050.com\/?p=7970"},"modified":"2026-04-22T06:51:35","modified_gmt":"2026-04-22T10:51:35","slug":"oursins-diademes-dans-les-caraibes-le-recensement-est-ouvert","status":"publish","type":"post","link":"https:\/\/martinique2050.com\/en\/oursins-diademes-dans-les-caraibes-le-recensement-est-ouvert\/","title":{"rendered":"Oursins diad\u00e8mes dans les Cara\u00efbes\u00a0: le recensement est ouvert"},"content":{"rendered":"

Rep\u00e9rer, identifier et signaler la pr\u00e9sence d\u2019oursins diad\u00e8mes en Martinique. Cette esp\u00e8ce d\u2019oursins est en danger mais pourquoi\u00a0? Un parasite qui prolif\u00e8re dans l\u2019ensemble de la r\u00e9gion Cara\u00efbe. C\u2019est pourquoi les pouvoirs publics demandent aux usagers de pr\u00eater attention \u00e0 la pr\u00e9sence et \u00e0 l\u2019\u00e9tat de sant\u00e9 des sp\u00e9cimens rencontr\u00e9s.<\/h2>\n

Ouvrez l\u2019oeil\u00a0!<\/strong><\/h2>\n

La DEAL de la Martinique se fait le relai d\u2019une campagne de collecte d\u2019information concernant la pr\u00e9sence et l\u2019\u00e9tat des oursins diad\u00e8mes. Il est demand\u00e9 aux personnes qui fr\u00e9quentent le milieu marin en Martinique – particuliers et professionnels – d\u2019aider \u00e0 identifier les oursins diad\u00e8mes (diadema antillarum<\/em>) sur l\u2019ensemble du r\u00e9cif corallien martiniquais. \u00ab\u00a0Les observations constituent une source d\u2019information pr\u00e9cieuse pour suivre l\u2019\u00e9tat de sant\u00e9 de cette esp\u00e8ce et d\u00e9tecter rapidement d\u2019\u00e9ventuels \u00e9pisodes de mortalit\u00e9\u00a0\u00bb, souligne la DEAL dans un communiqu\u00e9.<\/p>\n

Prot\u00e9ger la biodiversit\u00e9 marine<\/strong><\/h2>\n

La pr\u00e9sence des oursins diad\u00e8me est pr\u00e9cieuse pour l\u2019\u00e9cosyst\u00e8me, qui peut compter sur un pr\u00e9dateur des algues. \u00ab\u00a0En se nourrissant d\u2019algues, il limite leur prolif\u00e9ration et favorise la croissance et le recrutement des coraux. Sa pr\u00e9sence contribue directement \u00e0 la bonne sant\u00e9 et \u00e0 la r\u00e9silience des r\u00e9cifs coralliens\u00a0\u00bb, expliquent les experts de la DEAL. \u00ab\u00a0Lorsque ses populations diminuent fortement, les algues peuvent rapidement coloniser les r\u00e9cifs et perturber l\u2019\u00e9quilibre de l\u2019\u00e9cosyst\u00e8me corallien.\u00a0\u00bb<\/p>\n

Cependant, la menace p\u00e8se sur cette esp\u00e8ce d\u2019oursin de la Cara\u00efbe car un parasite pourrait \u00eatre \u00e0 l\u2019origine de l\u2019h\u00e9catombe observ\u00e9 depuis 2022. Les signes sont clairs\u00a0: l\u2019oursin semble se d\u00e9tacher de son socle, perd ses \u00e9pines de mani\u00e8re anormale ou son squelette blanc est visible.<\/p>\n

Adoptons les bons gestes<\/strong><\/h2>\n

Pour les plongeurs ou tout usager qui observeraient les signes mentionn\u00e9s ci-dessus, il est recommand\u00e9 de prendre des photos, de noter la localisation du site, la date et le nombre d\u2019individus observ\u00e9s. Il est possible de signaler la pr\u00e9sence d\u2019oursin en remplissant le formulaire AGRRA\u00a0: here<\/a>.<\/p>\n

Pour \u00e9viter tout risque de contamination, il est recommand\u00e9 aux plongeurs de ne pas toucher les oursins et de rincer son mat\u00e9riel \u00e0 l\u2019eau douce apr\u00e8s chaque plong\u00e9e. La biodiversit\u00e9 est une richesse, prot\u00e9geons-la\u00a0!<\/p>\n

SD<\/p>\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"

Rep\u00e9rer, identifier et signaler la pr\u00e9sence d\u2019oursins diad\u00e8mes en Martinique. Cette esp\u00e8ce d\u2019oursins est en danger mais pourquoi\u00a0? Un parasite qui prolif\u00e8re dans l\u2019ensemble de la r\u00e9gion Cara\u00efbe. C\u2019est pourquoi les pouvoirs publics demandent aux usagers de pr\u00eater attention \u00e0 la pr\u00e9sence et \u00e0 l\u2019\u00e9tat de sant\u00e9 des sp\u00e9cimens rencontr\u00e9s. Ouvrez l\u2019oeil\u00a0! La DEAL de …<\/p>","protected":false},"author":1,"featured_media":7971,"comment_status":"closed","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":[1547],"tags":[],"class_list":["post-7970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biodiversite"],"acf":[],"yoast_head":"\nOursins diad\u00e8mes dans les Cara\u00efbes\u00a0: le recensement est ouvert - martinique2050<\/title>\n<meta name=\"description\" content=\"Rep\u00e9rer, identifier et signaler la pr\u00e9sence d\u2019oursins diad\u00e8mes en Martinique. Cette esp\u00e8ce d\u2019oursins est en danger mais pourquoi\u00a0? 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