{"id":5900,"date":"2023-07-13T23:32:58","date_gmt":"2023-07-13T21:32:58","guid":{"rendered":"https:\/\/captaindarwin.org\/biodiversity-kelp\/"},"modified":"2026-01-29T15:10:12","modified_gmt":"2026-01-29T14:10:12","slug":"biodiversite-kelp","status":"publish","type":"page","link":"https:\/\/captaindarwin.org\/fr\/biodiversite-kelp\/","title":{"rendered":"Histoire \u2022 Biodiversit\u00e9 \u2022 Kelp"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; next_background_color=\u00a0\u00bb#efebed\u00a0\u00bb admin_label=\u00a0\u00bbHeader Story\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Story_Kelps.jpg\u00a0\u00bb parallax=\u00a0\u00bbon\u00a0\u00bb bottom_divider_style=\u00a0\u00bbcurve\u00a0\u00bb bottom_divider_height=\u00a0\u00bb25px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row admin_label=\u00a0\u00bbRow\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbCategory\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-30px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h6 style=\"text-align: center;\"><span style=\"color: #ffffff;\">\u00c9volution de la Biodiversit\u00e9\u23a2\u00celes Malouines\u23a22023<\/span><\/h6>\n<p>[\/et_pb_text][et_pb_text disabled_on=\u00a0\u00bbon|off|off\u00a0\u00bb admin_label=\u00a0\u00bbTitle Desktop\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-25px||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb||150px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h1 style=\"text-align: center;\">Les for\u00eats de kelp<br \/>d&rsquo;Atlantique Sud<\/h1>\n<p>[\/et_pb_text][et_pb_text disabled_on=\u00a0\u00bboff|on|on\u00a0\u00bb admin_label=\u00a0\u00bbTitle Phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-25px||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb||150px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h1 style=\"text-align: center;\">Les for\u00eats de kelp<\/h1>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">En partenariat avec South Atlantic Research Institute<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Saeri.png\u00a0\u00bb title_text=\u00a0\u00bbSaeri\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb70px\u00a0\u00bb custom_margin=\u00a0\u00bb-10px||-30px||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbGlobal Presentation\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb40px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; make_equal=\u00a0\u00bbon\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_css_main_element=\u00a0\u00bbmargin: auto;\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Map_Kelp_Sheep_Penguins.jpg\u00a0\u00bb title_text=\u00a0\u00bbMap_Kelp_Sheep_Penguins\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb100%\u00a0\u00bb custom_css_main_element=\u00a0\u00bbmargin: auto;\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\">Lors des longues explorations cartographiques du <em>HMS Beagle<\/em>, Charles Darwin d\u00e9couvre l&rsquo;\u00e9cosyst\u00e8me des for\u00eats de kelps, dont le r\u00f4le d&rsquo;habitat pour la biodiversit\u00e9 l&rsquo;\u00e9merveille. Sur le littoral des Malouines, puis de la Patagonie argentine et chilienne, les algues brunes <em>Macrocystis pyrifera<\/em> b\u00e2tissent de v\u00e9ritables cath\u00e9drales sous-marines, dont l&rsquo;importance \u00e9cologique \u00e9gale celle des for\u00eats terrestres ou des r\u00e9cifs coralliens.<\/p>\n<p style=\"text-align: center;\">Aux Malouines, nous sommes invit\u00e9s \u00e0 participer \u00e0 des plong\u00e9es d&rsquo;exploration avec les \u00e9quipes du South Atlantic Research Institute (SAERI) et du Shallow Marine Survey Group (SMSG), dont l&rsquo;objectif est d&rsquo;approfondir la connaissance moderne de ces \u00e9cosyst\u00e8mes. Alyssa Adler, scientifique \u00e9tats-unienne, nous plonge dans l&rsquo;actualit\u00e9 de ces for\u00eats, 2 si\u00e8cles apr\u00e8s les observations de Darwin.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=\u00a0\u00bbVideo\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width_tablet=\u00a0\u00bb\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb custom_margin=\u00a0\u00bb-70px||-70px||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_code _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb80%\u00a0\u00bb width_tablet=\u00a0\u00bb80%\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb module_alignment=\u00a0\u00bbcenter\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/817013407?h=6a92efcbf6\" width=\"640\" height=\"564\" frameborder=\"0\" allow=\"autoplay; fullscreen\" allowfullscreen><\/iframe>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; next_background_color=\u00a0\u00bb#efebed\u00a0\u00bb disabled_on=\u00a0\u00bbon|off|off\u00a0\u00bb admin_label=\u00a0\u00bbDarwin\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_enable_color=\u00a0\u00bboff\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/DarwinWrites_v5.jpg\u00a0\u00bb background_position=\u00a0\u00bbtop_center\u00a0\u00bb width=\u00a0\u00bb100%\u00a0\u00bb custom_margin=\u00a0\u00bb-30px||||false|false\u00a0\u00bb bottom_divider_style=\u00a0\u00bbcurve\u00a0\u00bb bottom_divider_height=\u00a0\u00bb25px\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Darwin.png\u00a0\u00bb title_text=\u00a0\u00bbDarwin\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb130px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: center;\">1833<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|15px|||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\">Il existe une production marine, qui de par son importance est digne d&rsquo;une histoire particuli\u00e8re. C&rsquo;est le kelp, ou <em>Macrocystis pyrifera<\/em>. Cette plante pousse sur tous les rochers depuis la laisse de basse mer jusqu&rsquo;\u00e0 une grande profondeur, \u00e0 la fois sur la c\u00f4te ext\u00e9rieure et dans les chenaux.<\/p>\n<p style=\"text-align: center;\">Le nombre d&rsquo;\u00eatres vivants de tous les Ordres, dont l&rsquo;existence d\u00e9pend intimement du varech, est merveilleux. Un grand volume pourrait \u00eatre \u00e9crit, d\u00e9crivant les habitants d&rsquo;un de ces lits d&rsquo;algues.<\/p>\n<p style=\"text-align: center;\">Je ne peux que comparer ces grandes for\u00eats aquatiques de l&rsquo;h\u00e9misph\u00e8re sud, avec celles terrestres des r\u00e9gions intertropicales. Pourtant, si dans n&rsquo;importe quel pays une for\u00eat \u00e9tait d\u00e9truite, je ne crois pas qu&rsquo;autant d&rsquo;esp\u00e8ces d&rsquo;animaux p\u00e9rissent comme ici, de la destruction du Macrocystis.<\/p>\n<p style=\"text-align: center;\"><em>&#8211; Charles Darwin, Voyage of the Beagle, 1833<\/em><\/p>\n<p style=\"text-align: center;\">[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Victor_VS.png\u00a0\u00bb title_text=\u00a0\u00bbVictor_VS\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb130px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: center;\">2023<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.27.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|||15px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\">Les for\u00eats de kelps de l&rsquo;Atlantique Sud sont en bon \u00e9tat, notamment gr\u00e2ce \u00e0 la faible pression anthropique li\u00e9e \u00e0 la faible densit\u00e9 de population. Elles jouent ainsi aujourd&rsquo;hui parfaitement leur r\u00f4le d&rsquo;habitat et de puits \u00e0 carbone.<\/p>\n<p style=\"text-align: center;\">La comparaison des anciennes cartes du Beagle, qui font figurer l&rsquo;extension des for\u00eats de kelp, et de l&rsquo;imagerie satellite moderne, vient pr\u00e9cis\u00e9ment prouver le maintient de leur extension au cours des si\u00e8cles.<\/p>\n<p style=\"text-align: center;\">Les for\u00eats de kelps, pr\u00e9sentes partout autour de la plan\u00e8te sur le littoral des oc\u00e9ans polaires et temp\u00e9r\u00e9s, reculent nettement dans certains pays (Tasmanie, Afrique du Sud), \u00e0 cause de pollutions locales comme le tourisme ou la p\u00eache.<\/p>\n<p style=\"text-align: center;\">Le d\u00e9r\u00e8glement climatique risque d&rsquo;avoir un impact important dans les d\u00e9cennies \u00e0 venir, notamment \u00e0 travers les ph\u00e9nom\u00e8nes d&rsquo;acidification des oc\u00e9ans et de tropicalisation.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; disabled_on=\u00a0\u00bbon|on|on\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb disabled=\u00a0\u00bbon\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_divider show_divider=\u00a0\u00bboff\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_divider][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; next_background_color=\u00a0\u00bb#ffffff\u00a0\u00bb disabled_on=\u00a0\u00bboff|on|on\u00a0\u00bb admin_label=\u00a0\u00bbDarwin Phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#d6d1d4&Prime; background_enable_image=\u00a0\u00bboff\u00a0\u00bb background_position=\u00a0\u00bbtop_center\u00a0\u00bb custom_margin=\u00a0\u00bb0px||||false|false\u00a0\u00bb top_divider_style=\u00a0\u00bbarrow\u00a0\u00bb top_divider_color=\u00a0\u00bb#efebed\u00a0\u00bb top_divider_height=\u00a0\u00bb25px\u00a0\u00bb bottom_divider_style=\u00a0\u00bbarrow\u00a0\u00bb bottom_divider_height=\u00a0\u00bb25px\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Darwin.png\u00a0\u00bb title_text=\u00a0\u00bbDarwin\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb130px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: center;\">1833<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\">Il existe une production marine, qui de par son importance est digne d&rsquo;une histoire particuli\u00e8re. C&rsquo;est le kelp, ou <em>Macrocystis pyrifera<\/em>. Cette plante pousse sur tous les rochers depuis la laisse de basse mer jusqu&rsquo;\u00e0 une grande profondeur, \u00e0 la fois sur la c\u00f4te ext\u00e9rieure et dans les chenaux.<\/p>\n<p style=\"text-align: center;\">Le nombre d&rsquo;\u00eatres vivants de tous les Ordres, dont l&rsquo;existence d\u00e9pend intimement du varech, est merveilleux. Un grand volume pourrait \u00eatre \u00e9crit, d\u00e9crivant les habitants d&rsquo;un de ces lits d&rsquo;algues.<\/p>\n<p style=\"text-align: center;\">Je ne peux que comparer ces grandes for\u00eats aquatiques de l&rsquo;h\u00e9misph\u00e8re sud, avec celles terrestres des r\u00e9gions intertropicales. Pourtant, si dans n&rsquo;importe quel pays une for\u00eat \u00e9tait d\u00e9truite, je ne crois pas qu&rsquo;autant d&rsquo;esp\u00e8ces d&rsquo;animaux p\u00e9rissent comme ici, de la destruction du Macrocystis.<\/p>\n<p style=\"text-align: center;\"><em>&#8211; Charles Darwin, Voyage of the Beagle, 1833<\/em><\/p>\n<p style=\"text-align: center;\">[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; disabled_on=\u00a0\u00bboff|on|on\u00a0\u00bb admin_label=\u00a0\u00bbCaptain Darwin Phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#ffffff\u00a0\u00bb background_enable_image=\u00a0\u00bboff\u00a0\u00bb background_position=\u00a0\u00bbtop_center\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb bottom_divider_style=\u00a0\u00bbarrow\u00a0\u00bb bottom_divider_color=\u00a0\u00bb#efebed\u00a0\u00bb bottom_divider_height=\u00a0\u00bb25px\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Victor_VS.png\u00a0\u00bb title_text=\u00a0\u00bbVictor_VS\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb130px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: center;\">2023<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\">Les for\u00eats de kelps de l&rsquo;Atlantique Sud sont en bon \u00e9tat, notamment gr\u00e2ce \u00e0 la faible pression anthropique li\u00e9e \u00e0 la faible densit\u00e9 de population. Elles jouent ainsi aujourd&rsquo;hui parfaitement leur r\u00f4le d&rsquo;habitat et de puis \u00e0 carbone.<\/p>\n<p style=\"text-align: center;\">La comparaison des anciennes cartes du Beagle, qui font figurer l&rsquo;extension des for\u00eats de kelp, et de l&rsquo;imagerie satellite moderne, vient pr\u00e9cis\u00e9ment prouver le maintient de leur extension au cours des si\u00e8cles.<\/p>\n<p style=\"text-align: center;\">Les for\u00eats de kelp, pr\u00e9sentes partout autour de la plan\u00e8te sur le littoral des oc\u00e9ans polaires et temp\u00e9r\u00e9s, reculent nettement dans certains pays (Tasmanie, Afrique du Sud), \u00e0 cause de pollutions locales comme le tourisme ou la p\u00eache.<\/p>\n<p style=\"text-align: center;\">Le d\u00e9r\u00e8glement climatique risque d&rsquo;avoir un impact important dans les d\u00e9cennies \u00e0 venir, notamment \u00e0 travers les ph\u00e9nom\u00e8nes d&rsquo;acidification des oc\u00e9ans et de tropicalisation.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 1&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb40px||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>Les for\u00eats depuis la surface<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Nous sommes \u00e0 Cochon Island, au nord-est des Malouines. Sur la photo, une \u00eele, bien s\u00fbr, mais aussi, \u00e0 gauche, au ras de l\u2019eau, un nouveau terrain d\u2019exploration. Aussi incroyable que cela puisse para\u00eetre, il s\u2019agit d\u2019une parmi les nombreuses for\u00eats des Malouines. \u00c9videmment, parler de for\u00eat peut sembler contre intuitif, sur ce territoire o\u00f9 les vents soufflent si continuellement que la v\u00e9g\u00e9tation ne peut, dans l\u2019extr\u00eame majorit\u00e9 des cas, pousser au-del\u00e0 de la taille d\u2019un arbuste.<\/p>\n<p>Mais pourtant, vous avez bien sous les yeux des photos d\u2019une for\u00eat\u2026 aquatique ! Vous voyez les ondulations d\u2019algues, au niveau de la surface de l\u2019eau. Il s\u2019agit d\u2019une esp\u00e8ce du nom de <em>Macrosystis pyrifera<\/em>, commun\u00e9ment appel\u00e9e \u00ab kelp \u00bb. Darwin l\u2019a largement d\u00e9crite dans son livre \u00ab Le voyage du Beagle \u00bb.<\/p>\n<p>\u00ab Je crois que pendant les voyages de l\u2019Adventure et du Beagle on n\u2019a pas d\u00e9couvert un seul roc pr\u00e8s de la surface qui ne f\u00fbt indiqu\u00e9 par cette plante flottante. On comprend tout de suite quelles services elle rend aux vaisseaux qui naviguent dans ces mers orageuses, elle en a certainement sauv\u00e9 beaucoup du naufrage. \u00bb<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Cette algue est en effet si grande que, bien que ses racines puissent se trouver \u00e0 plus de 10 m\u00e8tres de profondeur, elle pousse jusqu\u2019\u00e0 atteindre la surface o\u00f9 elle s\u2019\u00e9tale ensuite sur plusieurs m\u00e8tres. Rep\u00e9r\u00e9e \u00e0 des centaines de m\u00e8tres de distance, cette canop\u00e9e ondulante indique pr\u00e9cis\u00e9ment la localisation des hauts-fonds, nous permettant de les \u00e9viter.<\/p>\n<p>Naturellement, nous restons bien \u00e0 l\u2019\u00e9cart de ces for\u00eats aquatiques, car les tiges solides de <em>Macrosystis pyrifera<\/em> risqueraient bien de s\u2019enrouler autour de notre h\u00e9lice, stoppant net le moteur et nous laissant \u00e0 la merci des vents et des courants. Mais ces for\u00eats me fascinent, autant qu\u2019elles ont fascin\u00e9 Darwin et tous les marins qui ont navigu\u00e9 dans les mers du sud. La d\u00e9cision est prise : pour mieux les comprendre, nous allons y plonger !<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_1.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_1&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_2.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_2&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_3.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_3&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>Pr\u00e9paration \u00e0 la plong\u00e9e<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Pr\u00e9parez-vous \u00e0 p\u00e9n\u00e9trer dans un nouveau monde ! Darwin, s\u2019il \u00e9tait fascin\u00e9 par les for\u00eats de kelps, ne pouvait gu\u00e8re que les appr\u00e9cier depuis la surface. Mais cela ne l\u2019a pas emp\u00each\u00e9 de d\u00e9crire tr\u00e8s finement le type de biodiversit\u00e9 que l\u2019on peut y trouver. Pour cela, rien de plus simple : il suffit de tirer sur les tiges du kelp depuis la surface.<\/p>\n<p>Mais 200 ans plus tard, nous avons encore mieux : le scaphandre autonome. C\u2019est une technique fort simple, que l\u2019on avait d\u00e9j\u00e0 mise en oeuvre lors de notre exploration du Cap-Vert. Avec 45 minutes d\u2019autonomie jusque\u2019\u00e0 30 m\u00e8tres de profondeur, nous avions pu alors observer attentivement le poulpe.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Cela fait d\u00e9j\u00e0 plus d\u2019un an, alors il a fallu d\u2019abord se r\u00e9habituer \u00e0 porter le mat\u00e9riel sur le dos\u2026 dans une eau \u00e0 11\u00b0C. Nous utilisons toujours des combinaisons humides, mais cette fois-ci d\u2019une \u00e9paisseur de 9 millim\u00e8tres. Autant vous dire qu\u2019elle ne sont pas faciles \u00e0 enfiler\u2026 Et puis, c\u2019est le grand saut.<\/p>\n<p>S\u2019il fait froid une fois dans l\u2019eau, le premier aper\u00e7u des kelps est si fascinant qu\u2019il fait bien vite oublier l\u2019envie de greloter. Les ondulations des algues, les rayons du soleil qui percent la surface, la vision des troncs de Macrocystis pyrifera qui plongent dans les profondeurs\u2026 tout cela me donne furieusement envie de voir \u00e0 quoi \u00e7a ressemble \u00e0 une quinzaine de m\u00e8tres plus bas. Rendez-vous demain pour d\u00e9couvrir ensemble ces paysages !<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_4.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_4&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_5.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_5&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_6.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_6&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>Un habitat pour la biodiversit\u00e9<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Bienvenue au c\u0153ur des for\u00eats des Malouines ! Les immenses kelps s\u2019\u00e9lancent comme de v\u00e9ritables troncs, \u00e0 la verticale, des profondeurs vers la surface. Ils s\u2019y \u00e9panouissent alors en une canop\u00e9e qui filtre les rayons du soleil.<\/p>\n<p>Il est bien difficile de savoir o\u00f9 concentrer son regard, tellement la vie foisonne \u00e0 plus de 10 m\u00e8tres de profondeur. Darwin l\u2019avait bien observ\u00e9 lors de son passage en Patagonie. Il \u00e9crit \u00e0 ce sujet : \u00ab Le nombre des cr\u00e9atures vivantes de tous les ordres, dont l\u2019existence est initient li\u00e9e \u00e0 celle de ces algues, est v\u00e9ritablement \u00e9tonnant. On pourrait remplir un fort gros volume rien qu\u2019en faisant la description des habitants de ces bancs de plantes marines. \u00bb<\/p>\n<p>Sur le fond de roche, o\u00f9 les kelps accrochent leurs \u00ab racines \u00bb, on trouve des dizaines d\u2019esp\u00e8ces d\u2019animaux, parmi lesquels des oursins (<em>Austrocidaris canaliculata<\/em>), des \u00e9ponges (<em>Polyzoa sp.<\/em> &#8211; photo 2), d\u2019\u00e9normes \u00e9toiles de mer (<em>Labidiaster radiusus<\/em> &#8211; photo 3), d\u2019\u00e9l\u00e9gants nudibranches (<em>Tritonia sp.<\/em>) et des crevettes aux couleurs satur\u00e9es (<em>Campylonotus vagans<\/em> &#8211; photo 4). Dans ces eaux d\u2019une richesse infinie, les calmars viennent pondre leurs \u0153ufs, qui, accroch\u00e9s sous forme de sacs aux racines des algues, se balancent au gr\u00e9 du courant (<em>Doruteuthis gahi<\/em> &#8211; photo 5).<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>En remontant progressivement vers la surface, j\u2019observe des milliers de bivalves accroch\u00e9s sur certains kelps (<em>Gaimardia trapesina<\/em> &#8211; photo 6). Au d\u00e9tour d\u2019un autre, je fais la rencontre d\u2019un petit crabe araign\u00e9e (<em>Eurypodius longirostris<\/em>). Tout autour de nous, d&rsquo;innombrables petits poissons naviguent en bancs entre les kelps, faisant le bonheur des oiseaux de mer, dont les manchots, qui s\u2019en repaissent en surface.<\/p>\n<p>Les for\u00eats de kelps sont ainsi de v\u00e9ritables r\u00e9sidences pour des centaines d\u2019esp\u00e8ces : on en comprend bien vite l\u2019importance pour la biodiversit\u00e9 des Falklands. On \u00e9tudiera dans les jours prochains l\u2019\u00e9volution de cet \u00e9cosyst\u00e8me si essentiel pour la vie marine et terrestre des \u00eeles.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_7.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_7&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb][\/et_pb_image][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_10.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_10&Prime; 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_module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_12.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_12&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>Alyssa, la scientifique \u00e9tats-unienne<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Voici Alyssa, une scientifique am\u00e9ricaine qui travaille \u00e0 une meilleure connaissance des for\u00eats de kelps. Alyssa pr\u00e9pare une th\u00e8se \u00e0 l\u2019universit\u00e9 de Duke (en Caroline du Nord), dont l\u2019objectif est de comparer les populations de kelps entre l\u2019h\u00e9misph\u00e8re nord et l\u2019h\u00e9misph\u00e8re sud.<\/p>\n<p><em>Macrocystis pyrifera<\/em>, l\u2019esp\u00e8ce de kelp que l\u2019on trouve ici aux Malouines, est en effet pr\u00e9sente sur un gradient latitudinal extr\u00eamement important. On en trouve de la Terre de Feu, au Chili, jusqu\u2019en Californie ! Le kelp peut se d\u00e9velopper dans des eaux aux temp\u00e9ratures tr\u00e8s diff\u00e9rentes, \u00e0 l\u2019inverse d\u2019animaux comme les coraux qui peuvent survivre \u00e0 des variations de quelques degr\u00e9s seulement.<\/p>\n<p>Peut-on observer des variations morphologiques chez le kelp am\u00e9ricain et le celui que l\u2019on trouve aux Malouines ? La biodiversit\u00e9 que ces algues abritent est-elle diff\u00e9rente \u00e0 des milliers de kilom\u00e8tres de distance ? Darwin avait d\u00e9j\u00e0 remarqu\u00e9 une variation dans l\u2019\u00e9cosyst\u00e8me cr\u00e9\u00e9 par Macrocystis pyrifera, entre le sud et le nord du Chili. Il \u00e9crit \u00e0 ce sujet : \u00ab \u00c0 Chilo\u00e9, o\u00f9 cette algue ne cro\u00eet pas si bien, on ne trouve sur elle ni coquillages, ni zoophytes, ni crustac\u00e9s ; on y trouve cependant quelques Flustres et quelques Ascidies qui, toutefois, appartiennent \u00e0 une esp\u00e8ce diff\u00e9rente de ce elle de la Terre de Feu, ce qui nous prouve que la plante a un habitat plus \u00e9tendu que les animaux qui l\u2019habitent. \u00bb<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Pour \u00e9tudier finement ces variations, Alyssa identifie et quantifie attentivement la biodiversit\u00e9 qu\u2019on trouve au pied des kelps. Elle pr\u00e9l\u00e8ve \u00e9galement des \u00e9chantillons d\u2019algues, qu\u2019elle mesure et observe au microscope une fois dans son laboratoire. Certains \u00e9chantillons subiront m\u00eame des tests de composition chimique pour comprendre en d\u00e9tail les \u00e9ventuels ajustements que l\u2019esp\u00e8ce op\u00e8re en fonction de son habitat.<\/p>\n<p>Un travail passionnant, qui nous permet de comprendre plus finement l\u2019incroyable \u00e9cosyst\u00e8me qui se d\u00e9veloppe \u00e0 l\u2019int\u00e9rieur des for\u00eats de kelps.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_13.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_13&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_14.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_14&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_15.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_15&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 5&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>L&rsquo;\u00e9volution des for\u00eats depuis Darwin<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb hover_enabled=\u00a0\u00bb0&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0&Prime;]<\/p>\n<p>Comment se portent les for\u00eats de kelps aux Malouines, depuis l\u2019\u00e9poque de Darwin ? Cette question que je me pose, il se trouve que des scientifiques (emmen\u00e9s par Alejandra Mora-Soto) se la sont pos\u00e9e \u00e9galement en 2021. Et ils ont r\u00e9ussi \u00e0 en trouver la r\u00e9ponse, d\u2019une mani\u00e8re extr\u00eamement pr\u00e9cise.<\/p>\n<p>Rappelez-vous de la mission du Beagle, le bateau sur lequel voyageait Darwin : cartographier la pointe sud de l\u2019Am\u00e9rique du Sud. Certaines des cartes \u00e9tablies alors \u00e9taient si pr\u00e9cises que certaines donn\u00e9es collect\u00e9es sont encore en usage aujourd\u2019hui !<\/p>\n<p>Ces cartes contiennent une donn\u00e9e sur la biologie des lieux, et une seule : l\u2019extension des for\u00eats de kelps, signifi\u00e9e par de nombreux filaments entrelac\u00e9s (photo 2). Comme <em>Macrocystis pyrifera<\/em> repr\u00e9sente un danger pour la navigation, ainsi que nous l\u2019avons vu lors d\u2019un post pr\u00e9c\u00e9dent, il est tout \u00e0 fait logique que la pr\u00e9sence des algues soit not\u00e9e sur une carte marine.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>C\u2019est ainsi qu\u2019une id\u00e9e g\u00e9niale a germ\u00e9 chez Alejandra Mora-Soto : comparer l\u2019extension des for\u00eats de kelps \u00e0 l\u2019\u00e9poque pr\u00e9cise o\u00f9 Darwin \u00e9tait aux Malouines et en Terre de Feu (1833 et 1834) \u00e0 celle d\u2019aujourd\u2019hui, en utilisant d\u2019un c\u00f4t\u00e9 les cartes marines relev\u00e9es par le Beagle et de l\u2019autre des photos satellites modernes.<\/p>\n<p>Quel est donc le r\u00e9sultat de cette \u00e9tude ? Eh bien, que cet \u00e9cosyst\u00e8me est \u00e0 peu pr\u00e8s aussi \u00e9tendu aujourd\u2019hui qu\u2019il l\u2019\u00e9tait il y a 2 si\u00e8cles ! Alejandra Mora-Soto et ses co-auteurs \u00e9crivent : \u00ab Compte tenu des changements naturels et humains consid\u00e9rables au cours des deux derniers si\u00e8cles, cet \u00e9cosyst\u00e8me diversifi\u00e9 de kelp est remarquablement persistant. Dans le contexte actuel de changement global, le besoin de conservation de cet \u00e9cosyst\u00e8me marin persistant et bien pr\u00e9serv\u00e9 n&rsquo;a jamais \u00e9t\u00e9 aussi important. \u00bb<\/p>\n<p>Cette remarquable pr\u00e9servation que rel\u00e8ve les scientifiques est sans doute due \u00e0 une relative faible pression des activit\u00e9s humaines dans les lieux ou <em>Macrocystis pyrifera<\/em> se d\u00e9veloppe. La capacit\u00e9 de cette esp\u00e8ce \u00e0 survire \u00e0 des \u00e9carts importants de temp\u00e9ratures est \u00e9galement en jeu. Mais la partie n\u2019est pour autant pas gagn\u00e9e : les effets du r\u00e9chauffement climatique sur cet incroyable \u00e9cosyst\u00e8me pourraient bien renverser la tendance\u2026<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_16.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_16&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; 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_builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Photo_Kelp_18.jpg\u00a0\u00bb title_text=\u00a0\u00bbPhoto_Kelp_18&Prime; show_in_lightbox=\u00a0\u00bbon\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb border_radii=\u00a0\u00bbon|20px|20px|20px|20px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb transform_styles__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_scale__hover=\u00a0\u00bb110%|110%\u00a0\u00bb transform_scale__hover_enabled=\u00a0\u00bbon|hover\u00a0\u00bb transform_translate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_rotate__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_skew__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb transform_origin__hover_enabled=\u00a0\u00bbon|desktop\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbKelp 6&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h2>Plong\u00e9e avec un lion de mer<\/h2>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>Plong\u00e9e inoubliable avec un lion de mer \u2b50\ufe0f Incroyable\u2026 lors de ma derni\u00e8re plong\u00e9e sur les for\u00eats de kelps, nous avons la chance, avec Margot qui m\u2019accompagnait pour cette immersion, de faire la rencontre d\u2019un lion de mer.<\/p>\n<p>L\u2019\u00e9cosyst\u00e8me que ces algues abritent ne cesse de m\u2019\u00e9tonner, de m\u2019\u00e9merveiller. Il est si rare, de nos jours, de s\u2019immerger dans un lieu aussi sauvage et o\u00f9 la biodiversit\u00e9 fleurit sans entrave.<\/p>\n<p>Je terminerai donc cette exploration, avant de remercier tous ceux qui l\u2019ont rendue possible, par les mots de Darwin : \u00ab Je ne peux comparer ces grandes for\u00eats aquatiques de l\u2019h\u00e9misph\u00e8re m\u00e9ridional qu\u2019aux for\u00eats terrestres des r\u00e9gions intertropicales. Je ne crois pas cependant que la destruction d\u2019une for\u00eat, dans un pays quelconque, entra\u00eenerait, \u00e0 beaucoup pr\u00e8s, la mort d\u2019autant d\u2019esp\u00e8ces d\u2019animaux que la disparition de<em> Macrocystis pyrifera<\/em>. \u00bb<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbjustified\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p>\u00ab Au milieu des feuilles de cette plante vivent de nombreuses esp\u00e8ces de poissons qui, nulle part ailleurs, ne pourraient trouver un abri et des aliments ; si ces poissons venaient \u00e0 dispara\u00eetre, les cormorans et les autres oiseaux p\u00eacheurs, les loutres, les phoques, les marsouins, p\u00e9riraient bient\u00f4t aussi. \u00bb<\/p>\n<p>Un rappel de notre responsabilit\u00e9, en tant qu\u2019humain, de prendre soin de la nature autour de nous, partout dans le monde.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; 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admin_label=\u00a0\u00bbBouton\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_color=\u00a0\u00bb#efebed\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_button button_url=\u00a0\u00bbhttps:\/\/captaindarwin.org\/fr\/expedition\/#biodiversite\u00a0\u00bb button_text=\u00a0\u00bbRetour \u00e0 l&rsquo;exp\u00e9dition\u00a0\u00bb button_alignment=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_button=\u00a0\u00bbon\u00a0\u00bb button_text_size=\u00a0\u00bb14px\u00a0\u00bb button_text_color=\u00a0\u00bb#373737&Prime; button_border_width=\u00a0\u00bb1px\u00a0\u00bb button_border_color=\u00a0\u00bb#373737&Prime; custom_margin=\u00a0\u00bb-30px||30px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; disabled_on=\u00a0\u00bbon|off|off\u00a0\u00bb admin_label=\u00a0\u00bbFooter FR\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Soutien_v4.jpg\u00a0\u00bb background_position=\u00a0\u00bbtop_center\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||||false|false\u00a0\u00bb top_divider_height=\u00a0\u00bb20px\u00a0\u00bb top_divider_flip=\u00a0\u00bbvertical\u00a0\u00bb global_module=\u00a0\u00bb4799&Prime; saved_tabs=\u00a0\u00bball\u00a0\u00bb collapsed=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row module_class=\u00a0\u00bbfooter-big\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb160px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3>Nous soutenir<\/h3>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; admin_label=\u00a0\u00bbLogo\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb30px||0px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/HelloAsso.png\u00a0\u00bb title_text=\u00a0\u00bbHelloAsso\u00a0\u00bb show_bottom_space=\u00a0\u00bboff\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/CaptainDarwin_Logo_Footer.png\u00a0\u00bb title_text=\u00a0\u00bbCaptainDarwin_Logo_Footer\u00a0\u00bb show_bottom_space=\u00a0\u00bboff\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Mail_Footer_v2.png\u00a0\u00bb title_text=\u00a0\u00bbMail_Footer_v2&Prime; show_bottom_space=\u00a0\u00bboff\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; admin_label=\u00a0\u00bbTextes\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-30px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbFaire un don\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Donner \/ Adh\u00e9rer<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Vous pouvez soutenir les activit\u00e9s de l&rsquo;association en r\u00e9alisant un don ou en devenant adh\u00e9rent.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbR\u00e9seaux\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Sur les r\u00e9seaux<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Suivez les r\u00e9seaux sociaux Captain Darwin pour \u00eatre au courant des derni\u00e8res aventures !<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbMail\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Envoyer un mail<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Une question ? Une remarque ? Un mot d&rsquo;encouragement ? Envoyez-nous un mail !<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_3,1_3,1_3&Prime; admin_label=\u00a0\u00bbBoutons\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-10px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_button button_url=\u00a0\u00bbhttps:\/\/helloasso.com\/associations\/captain-darwin\/\u00a0\u00bb url_new_window=\u00a0\u00bbon\u00a0\u00bb button_text=\u00a0\u00bbVers Hello Asso\u00a0\u00bb button_alignment=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbButton\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_button=\u00a0\u00bbon\u00a0\u00bb button_text_size=\u00a0\u00bb14px\u00a0\u00bb button_border_width=\u00a0\u00bb1px\u00a0\u00bb button_border_color=\u00a0\u00bb#FFFFFF\u00a0\u00bb button_icon=\u00a0\u00bb&#xe030;||divi||400&Prime; background_layout=\u00a0\u00bbdark\u00a0\u00bb custom_margin=\u00a0\u00bb0px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_button][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbcenter\u00a0\u00bb module_alignment=\u00a0\u00bbcenter\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p><a href=\"http:\/\/facebook.com\/capt.darwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4730\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Facebook_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a> <a href=\"http:\/\/instagram.com\/capt.darwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4732\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Instagram_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a> <a href=\"http:\/\/youtube.com\/captaindarwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4734\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/YouTube_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_3&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_button button_url=\u00a0\u00bbmailto:hello@captaindarwin.org\u00a0\u00bb button_text=\u00a0\u00bbJ&rsquo;envoie un mail\u00a0\u00bb button_alignment=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbButton\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_button=\u00a0\u00bbon\u00a0\u00bb button_text_size=\u00a0\u00bb14px\u00a0\u00bb button_border_width=\u00a0\u00bb1px\u00a0\u00bb button_border_color=\u00a0\u00bb#FFFFFF\u00a0\u00bb button_icon=\u00a0\u00bb&#x6c;||divi||400&Prime; background_layout=\u00a0\u00bbdark\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_divider color=\u00a0\u00bb#FFFFFF\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||-50px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">\u00a9 Captain Darwin 2023 &#8211; 1 rue des Senneurs &#8211; 29 900 Concarneau &#8211; FRANCE &#8211; <a href=\"https:\/\/captaindarwin.org\/fr\/mentions-legales\/\" target=\"_blank\" rel=\"noopener\">Mentions L\u00e9gales<\/a><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1&Prime; disabled_on=\u00a0\u00bboff|on|on\u00a0\u00bb admin_label=\u00a0\u00bbFooter FR Phone\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Soutien_v4.jpg\u00a0\u00bb background_position=\u00a0\u00bbtop_center\u00a0\u00bb background_vertical_offset=\u00a0\u00bb6%\u00a0\u00bb custom_margin=\u00a0\u00bb-120px||||false|false\u00a0\u00bb top_divider_height=\u00a0\u00bb20px\u00a0\u00bb top_divider_flip=\u00a0\u00bbvertical\u00a0\u00bb global_module=\u00a0\u00bb5189&Prime; saved_tabs=\u00a0\u00bball\u00a0\u00bb locked=\u00a0\u00bboff\u00a0\u00bb collapsed=\u00a0\u00bbon\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb70px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb160px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h3>Nous soutenir<\/h3>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/HelloAsso.png\u00a0\u00bb title_text=\u00a0\u00bbHelloAsso\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbDonate\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Donner \/ Adh\u00e9rer<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Vous pouvez soutenir les activit\u00e9s de l&rsquo;association en r\u00e9alisant un don ou en devenant adh\u00e9rent.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_button button_url=\u00a0\u00bbhttps:\/\/helloasso.com\/associations\/captain-darwin\/\u00a0\u00bb url_new_window=\u00a0\u00bbon\u00a0\u00bb button_text=\u00a0\u00bbVers Hello Asso\u00a0\u00bb button_alignment=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbButton\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_button=\u00a0\u00bbon\u00a0\u00bb button_text_size=\u00a0\u00bb14px\u00a0\u00bb button_border_width=\u00a0\u00bb1px\u00a0\u00bb button_border_color=\u00a0\u00bb#FFFFFF\u00a0\u00bb button_icon=\u00a0\u00bb&#xe030;||divi||400&Prime; background_layout=\u00a0\u00bbdark\u00a0\u00bb custom_margin=\u00a0\u00bb0px||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/CaptainDarwin_Logo_Footer.png\u00a0\u00bb title_text=\u00a0\u00bbCaptainDarwin_Logo_Footer\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbNetworks\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Sur les r\u00e9seaux<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Suivez les r\u00e9seaux sociaux Captain Darwin pour \u00eatre au courant des derni\u00e8res aventures !<\/span><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_orientation=\u00a0\u00bbcenter\u00a0\u00bb module_alignment=\u00a0\u00bbcenter\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p><a href=\"http:\/\/facebook.com\/capt.darwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4730\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Facebook_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a> <a href=\"http:\/\/instagram.com\/capt.darwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4732\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Instagram_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a> <a href=\"http:\/\/youtube.com\/captaindarwin\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom alignnone wp-image-4734\" src=\"https:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/YouTube_v3.png\" alt=\"\" width=\"50\" height=\"50\" \/><\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2023\/07\/Mail_Footer_v2.png\u00a0\u00bb title_text=\u00a0\u00bbMail_Footer_v2&Prime; align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb width=\u00a0\u00bb50%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbMail\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb|10px||10px|false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h4 style=\"text-align: center;\">Envoyer un mail<\/h4>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Une question ? Une remarque ? Un mot d&rsquo;encouragement ? Envoyez-nous un mail !<\/span><\/p>\n<p>[\/et_pb_text][et_pb_button button_url=\u00a0\u00bbmailto:hello@captaindarwin.org\u00a0\u00bb button_text=\u00a0\u00bbJ&rsquo;envoie un mail\u00a0\u00bb button_alignment=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbButton\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_button=\u00a0\u00bbon\u00a0\u00bb button_text_size=\u00a0\u00bb14px\u00a0\u00bb button_border_width=\u00a0\u00bb1px\u00a0\u00bb button_border_color=\u00a0\u00bb#FFFFFF\u00a0\u00bb button_icon=\u00a0\u00bb&#x6c;||divi||400&Prime; background_layout=\u00a0\u00bbdark\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_divider color=\u00a0\u00bb#FFFFFF\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb-50px||-50px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.19.5&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb custom_margin=\u00a0\u00bb||||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">\u00a9 Captain Darwin 2023 &#8211; 1 rue des Senneurs &#8211; 29 900 Concarneau &#8211; FRANCE &#8211; <a href=\"https:\/\/captaindarwin.org\/fr\/mentions-legales\/\" target=\"_blank\" rel=\"noopener\">Mentions L\u00e9gales<\/a><\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c9volution de la Biodiversit\u00e9\u23a2\u00celes Malouines\u23a22023Les for\u00eats de kelpd&rsquo;Atlantique SudLes for\u00eats de kelpEn partenariat avec South Atlantic Research InstituteLors des longues explorations cartographiques du HMS Beagle, Charles Darwin d\u00e9couvre l&rsquo;\u00e9cosyst\u00e8me des for\u00eats de kelps, dont le r\u00f4le d&rsquo;habitat pour la biodiversit\u00e9 l&rsquo;\u00e9merveille. Sur le littoral des Malouines, puis de la Patagonie argentine et chilienne, les algues [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-5900","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Histoire \u2022 Biodiversit\u00e9 \u2022 Kelp - Captain Darwin<\/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:\/\/captaindarwin.org\/fr\/biodiversite-kelp\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Histoire \u2022 Biodiversit\u00e9 \u2022 Kelp - Captain Darwin\" \/>\n<meta property=\"og:description\" content=\"\u00c9volution de la Biodiversit\u00e9\u23a2\u00celes Malouines\u23a22023Les for\u00eats de kelpd&#039;Atlantique SudLes for\u00eats de kelpEn partenariat avec South Atlantic Research InstituteLors des longues explorations cartographiques du HMS Beagle, Charles Darwin d\u00e9couvre l&#039;\u00e9cosyst\u00e8me des for\u00eats de kelps, dont le r\u00f4le d&#039;habitat pour la biodiversit\u00e9 l&#039;\u00e9merveille. 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