{"id":29464,"date":"2026-04-17T16:08:45","date_gmt":"2026-04-17T16:08:45","guid":{"rendered":"https:\/\/www.futurismo.pt\/blog\/\/"},"modified":"2026-04-17T16:08:48","modified_gmt":"2026-04-17T16:08:48","slug":"are-dolphins-endangered","status":"publish","type":"post","link":"https:\/\/staging.futurismo.pt\/fr\/blog\/les-dauphins-sont-ils-en-danger\/","title":{"rendered":"Les dauphins sont-ils en danger ? | Approche scientifique"},"content":{"rendered":"<p>Les dauphins sont-ils en danger ? Les dauphins, qui appartiennent \u00e0 la famille des delphinid\u00e9s, sont confront\u00e9s \u00e0 diverses menaces qui ont conduit certaines esp\u00e8ces \u00e0 \u00eatre class\u00e9es dans la cat\u00e9gorie des esp\u00e8ces en danger. Il est essentiel de comprendre ces menaces et les efforts de conservation mis en place pour assurer leur protection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-overview\">Vue d'ensemble<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo58.jpg\" alt=\"David Rodrigues | Dauphin commun A\u00e7ores photo\" class=\"wp-image-25059\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo58.jpg 960w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo58-300x200.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo58-768x512.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo58-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">David Rodrigues | Dauphin commun A\u00e7ores photo<\/figcaption><\/figure>\n<\/div>\n\n\n<p><span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\">Au sein de la famille\u00a0<em>Delphinidae<\/em>, Nous avons trouv\u00e9 un groupe diversifi\u00e9 d'esp\u00e8ces<\/span> soit un total de 38. Cette esp\u00e8ce peut varier sur une gamme de sites allant de 1,8 m\u00e8tres \u00e0 9,8 m\u00e8tres. Ces animaux sont des mammif\u00e8res marins appartenant aux Odontoceti, un groupe de c\u00e9tac\u00e9s. Les odontoc\u00e8tes ont des dents et un seul \u00e9vent (Jefferson et al. 2011).<\/p>\n\n\n\n<p>Certaines esp\u00e8ces de dauphins et d'autres c\u00e9tac\u00e9s peuvent \u00eatre chass\u00e9es, compte tenu des ressources disponibles. La chasse aux c\u00e9tac\u00e9s a commenc\u00e9 vers 1100 et s'est termin\u00e9e au d\u00e9but des ann\u00e9es 1900. Par ailleurs, le changement climatique influence les esp\u00e8ces dont les \u00e9cosyst\u00e8mes sont plus sp\u00e9cifiques (Parsons et Rose, 2022).<\/p>\n\n\n\n<p>Dans la liste rouge des esp\u00e8ces menac\u00e9es de l'Union internationale pour la conservation de la nature, nous avons trouv\u00e9 : 23 esp\u00e8ces dans la cat\u00e9gorie la moins pr\u00e9occupante, cinq quasi-menac\u00e9es, deux vuln\u00e9rables, trois en danger, une critique, une dont les donn\u00e9es sont insuffisantes et trois sans cat\u00e9gorie (UICN, 2022).\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.futurismo.pt\/tours\/whale-watching-in-ponta-delgada-sao-miguel-azores\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"815\" height=\"250\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/12\/3.jpg\" alt=\"\" class=\"wp-image-35083\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/3.jpg 815w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/3-300x92.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/3-768x236.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/3-18x6.jpg 18w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-endangered-species\">Esp\u00e8ces menac\u00e9es<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo57.jpg\" alt=\"David Rodrigues | Dauphin commun A\u00e7ores photo\" class=\"wp-image-25058\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo57.jpg 960w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo57-300x200.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo57-768x512.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Common-dolphin-Azores-photo57-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">David Rodrigues | Dauphin commun A\u00e7ores photo<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Selon les crit\u00e8res de l'UICN, on entend par \"en danger\" toutes les esp\u00e8ces qui pr\u00e9sentent un risque tr\u00e8s \u00e9lev\u00e9 d'extinction en raison d'un d\u00e9clin rapide de leur population. Ce d\u00e9clin de la population doit \u00eatre de 50 \u00e0 70 % au cours des dix derni\u00e8res ann\u00e9es, ce qui leur vaut d'\u00eatre class\u00e9es dans cette cat\u00e9gorie.<\/p>\n\n\n\n<p>Les esp\u00e8ces menac\u00e9es sont Cephalorhynchus hectori, Orcaella brevirostris et Sotalia fluviatilis. Une esp\u00e8ce, Sousa teuszi, est en danger critique d'extinction. Les menaces les plus importantes sont les activit\u00e9s anthropog\u00e9niques, notamment la p\u00eache et la pollution des \u00e9cosyst\u00e8mes, qui sont les principales causes du d\u00e9clin des populations de cette esp\u00e8ce.<\/p>\n\n\n\n<p>Les filets des p\u00eacheurs tuent de nombreux dauphins chaque ann\u00e9e, et les esp\u00e8ces de dauphins dont l'\u00e9cosyst\u00e8me est fragile sont davantage touch\u00e9es par la pollution. Toutes ces esp\u00e8ces ont une petite aire de distribution, des zones c\u00f4ti\u00e8res et quelques zones th\u00e9matiques d'eau douce. Elles sont donc plus menac\u00e9es que d'autres esp\u00e8ces dont l'aire de r\u00e9partition est plus vaste (UICN, 2022).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-fishing\">P\u00eache<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/02\/Atlantic-Spotted-Dolphin-photo-Azores61.jpg\" alt=\"David Rodrigues | Photo Dauphin tachet\u00e9 de l&#039;Atlantique A\u00e7ores\" class=\"wp-image-24983\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Atlantic-Spotted-Dolphin-photo-Azores61.jpg 960w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Atlantic-Spotted-Dolphin-photo-Azores61-300x200.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Atlantic-Spotted-Dolphin-photo-Azores61-768x512.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Atlantic-Spotted-Dolphin-photo-Azores61-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">David Rodrigues | Photo Dauphin tachet\u00e9 de l'Atlantique A\u00e7ores<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Les nouvelles technologies ont rendu les m\u00e9thodes de p\u00eache plus efficaces, mais aussi plus dommageables pour les habitats, les esp\u00e8ces cibl\u00e9es et les autres esp\u00e8ces (Laxmappa &amp; Bakshi, 2014). La plupart des dauphins tu\u00e9s par ces activit\u00e9s le sont par des prises accessoires. Cela signifie qu'ils sont captur\u00e9s accidentellement par les filets des p\u00eacheries.<\/p>\n\n\n\n<p>Les dauphins d\u00e9tectent les filets, mais ne les reconnaissent pas comme une barri\u00e8re ; ils s'y emp\u00eatrent \u00e9galement parce qu'ils peuvent \u00eatre distraits par d'autres activit\u00e9s. Ils s'approchent \u00e9galement des filets parce que ces derniers sont remplis de poissons et qu'ils s'en approchent pour les manger, ce qui les met en danger (Bowles &amp; Anderson, 2012).<\/p>\n\n\n\n<p>Pour prot\u00e9ger ce groupe de chasseurs, chaque pays a ses propres lois. Ainsi, ils sont prot\u00e9g\u00e9s des chasseurs. C'est parfois difficile en raison des cultures des pays, mais les gouvernements essaient d'offrir une compensation \u00e9conomique aux p\u00eacheurs (Prieto, 2018).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.futurismo.pt\/tours\/whale-watching-in-rabo-de-peixe-sao-miguel-azores\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"250\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2025\/02\/Banner-Comercial-Whale-Watching-Rabo-de-Peixe.jpg\" alt=\"\" class=\"wp-image-37100\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/02\/Banner-Comercial-Whale-Watching-Rabo-de-Peixe.jpg 815w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/02\/Banner-Comercial-Whale-Watching-Rabo-de-Peixe-300x92.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/02\/Banner-Comercial-Whale-Watching-Rabo-de-Peixe-768x236.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/02\/Banner-Comercial-Whale-Watching-Rabo-de-Peixe-18x6.png 18w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ecosystem\">\u00c9cosyst\u00e8me<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/02\/Bottlenose-Dolphin-Azores-2.jpg\" alt=\"Roxane Rambert | Grand dauphin A\u00e7ores58\" class=\"wp-image-25005\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Bottlenose-Dolphin-Azores-2.jpg 960w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Bottlenose-Dolphin-Azores-2-300x200.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Bottlenose-Dolphin-Azores-2-768x512.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/02\/Bottlenose-Dolphin-Azores-2-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">Roxane Rambert | Grand dauphin A\u00e7ores<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Certains dauphins peuvent vivre \u00e0 la fois dans des environnements marins et d'eau douce. Ils vivent donc dans des \u00e9cosyst\u00e8mes fragiles. Les eaux douces sont plus touch\u00e9es par les activit\u00e9s anthropiques car elles sont plus proches des zones urbaines. Les polluants sont rejet\u00e9s dans les rivi\u00e8res, ce qui les rend plus facilement pollu\u00e9es que les oc\u00e9ans.<\/p>\n\n\n\n<p>La salinit\u00e9 est \u00e9galement un facteur de survie pour ces animaux, c'est pourquoi certains pr\u00e9f\u00e8rent rester dans des zones proches de l'embouchure des rivi\u00e8res. Comme leur aire de r\u00e9partition n'est pas tr\u00e8s \u00e9tendue, leur population est peu nombreuse, ce qui les rend plus vuln\u00e9rables \u00e0 l'extinction.<\/p>\n\n\n\n<p>Leurs habitats sont plus restreints en raison de toutes les conditions dans lesquelles ils doivent vivre. Ces conditions peuvent changer rapidement sous l'effet de l'activit\u00e9 humaine. Donc, si elles changent beaucoup, peut-\u00eatre qu'un jour ces changements seront irr\u00e9versibles. Si cela se produit, nous perdrons cette esp\u00e8ce (UICN, 2022).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p>Dans les r\u00e9gions o\u00f9 l'environnement est prot\u00e9g\u00e9, nous ne trouvons pas d'esp\u00e8ces menac\u00e9es ou, si elles le sont, elles commencent \u00e0 augmenter leur population. Aux A\u00e7ores, nous prot\u00e9geons les esp\u00e8ces de c\u00e9tac\u00e9s et, heureusement pour nous, nous n'avons trouv\u00e9 aucune esp\u00e8ce de dauphins menac\u00e9e de disparition. Si vous voulez en savoir plus sur ces animaux, venez les voir dans leur habitat naturel, \u00e0 leur place !<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.futurismo.pt\/tours\/whale-watching-in-lajes-do-pico-azores\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"250\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2025\/03\/Banner-Comercial_-Whale-Watching-Lajes-do-Pico-2.jpg\" alt=\"\" class=\"wp-image-37582\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/03\/Banner-Comercial_-Whale-Watching-Lajes-do-Pico-2.jpg 815w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/03\/Banner-Comercial_-Whale-Watching-Lajes-do-Pico-2-300x92.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/03\/Banner-Comercial_-Whale-Watching-Lajes-do-Pico-2-768x236.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2025\/03\/Banner-Comercial_-Whale-Watching-Lajes-do-Pico-2-18x6.png 18w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-references\">R\u00e9f\u00e9rences<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bowles, A. E., et Anderson, R. C. (2012). R\u00e9ponses comportementales et habituation des pinnip\u00e8des et des petits c\u00e9tac\u00e9s \u00e0 des objets nouveaux et \u00e0 des engins de p\u00eache simul\u00e9s avec et sans pinger.&nbsp;<em>Mammif\u00e8res aquatiques<\/em>,&nbsp;<em>38<\/em>(2), 161.<\/li>\n\n\n\n<li>Liste rouge des esp\u00e8ces menac\u00e9es de l'Union internationale pour la conservation de la nature (2022). <a href=\"https:\/\/www.iucnredlist.org\/es\">https:\/\/www.iucnredlist.org\/es<\/a><\/li>\n\n\n\n<li>Jefferson, T. A., Webber, M. A. et Pitman, R. (2011).&nbsp;<em>Mammif\u00e8res marins du monde : un guide complet pour leur identification<\/em>. Elsevier.<\/li>\n\n\n\n<li>Laxmappa, B. et Bakshi, R. R. (2014). Types d'engins de p\u00eache utilis\u00e9s et leur impact sur la p\u00eache de la rivi\u00e8re Krishna dans le district de Mahabubnagar, TS Inde.\u00a0<em>Journal international de la p\u00eache et des \u00e9tudes aquatiques<\/em>,\u00a0<em>2<\/em>(1), 30-41.<\/li>\n\n\n\n<li>Parsons, E. C. M., &amp; Rose, N. A. (2022). The history of cetacean hunting and changing attitudes to whales and dolphins (L'histoire de la chasse aux c\u00e9tac\u00e9s et l'\u00e9volution des attitudes envers les baleines et les dauphins). Ethologie et \u00e9cologie comportementale des mammif\u00e8res marins : l'\u00e9volution du facteur humain. Springer Nature, Cham, Suisse, 219-254.<\/li>\n\n\n\n<li>Prieto, C. (2018). Breve an\u00e1lisis de la Ley 20.293 de Protecci\u00f3n de los Cet\u00e1ceos a 10 a\u00f1os de su entrada en vigencia. Justicia Ambiental.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Are dolphins endangered? Dolphins, belonging to the family Delphinidae, face various threats that have led some species to be categorized as endangered. Understanding these threats and the conservation efforts in place is crucial for their protection. Overview Within the family\u00a0Delphinidae, we found a diverse group of species totaling 38. This species can vary across a [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":25061,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-29464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wildlife"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Are Dolphins Endangered? | Scientific Approach [2026] \ud83d\udc2c<\/title>\n<meta name=\"description\" content=\"Learn about the endangered dolphin species, the threats they face, and conservation efforts to protect these magnificent marine mammals.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/staging.futurismo.pt\/fr\/blog\/sind-delfine-gefahrdet\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Are Dolphins Endangered? 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