{"id":1061,"date":"2017-07-01T12:51:40","date_gmt":"2017-07-01T10:51:40","guid":{"rendered":"https:\/\/sargasses.mio.osupytheas.fr\/?p=1061"},"modified":"2017-07-01T12:51:40","modified_gmt":"2017-07-01T10:51:40","slug":"sous-locean-par-thierry-thibaut","status":"publish","type":"post","link":"https:\/\/sargasses.mio.osupytheas.fr\/?p=1061","title":{"rendered":"Sous l\u2019oc\u00e9an\u2026 par Thierry Thibaut"},"content":{"rendered":"<p><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/equipage\/\" target=\"_blank\" rel=\"noopener\">Thierry THIBAUT<\/a>, chef de l\u2019exp\u00e9dition, nous raconte sa premi\u00e8re plong\u00e9e sous le premier radeau de Sargasses d\u00e9couvert le 26 juin.<\/p>\n<p>\u00ab Une premi\u00e8re pour l\u2019\u00e9quipe, d\u00e8s le lev\u00e9 du jour, la passerelle donne l\u2019alerte : un radeau de sargasses est en vue ! \u00a0Imm\u00e9diatement l\u2019\u00e9quipe Science est en branle-bas de combat. Les plongeurs s\u2019\u00e9quipent. Pendant ce temps, l\u2019\u00e9quipage p\u00eache des gros thons p\u00e9lagiques (<i>Thunnus atlanticus<\/i>) \u00a0et des dorades coryph\u00e8nes (<i>Coryphaena hippurus)<\/i>.<\/p>\n<p>Le zodiac est mis \u00e0 la mer pour pr\u00e9lever des \u00e9chantillons du radeau et faire des photos. D\u00e8s la mise \u00e0 l\u2019eau une surprise de taille se r\u00e9v\u00e8le&#8230; Le radeau est \u00e9pais, un mur d\u2019algues de 6-7m avec, en dessous, l\u2019obscurit\u00e9 inqui\u00e9tante. Qui cache la r\u00e9alit\u00e9 promeut l\u2019imaginaire.<\/p>\n<p>Le bord du radeau est constitu\u00e9 par une ceinture de flotteurs, et lorsque l\u2019on plonge on se retrouve devant \u00a0une \u00e9norme masse d\u2019algues : le noir s\u2019impose et sans phare on n\u2019y voit rien du tout !<\/p>\n<p>Mais force est de constater qu\u2019autour de cette masse sombre la vie grouille : on observe de tr\u00e8s nombreuses <a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/bestiaire\/\" target=\"_blank\" rel=\"noopener\">balistes oc\u00e9aniques (<i>Canthidermis sufflamen<\/i>)<\/a> et des com\u00e8tes saumon (<i>Elagatis bipinnulata<\/i>) qui se d\u00e9placent tr\u00e8s vite de mani\u00e8re d\u00e9sordonn\u00e9e. Autour du radeau, dans le bleu oc\u00e9an, les coryph\u00e8nes (<i>Coryphaena hippurus<\/i>) se d\u00e9placent par groupe de 3 ou 4. On distingue des carangues de deux esp\u00e8ces diff\u00e9rentes :<a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/bestiaire\/\" target=\"_blank\" rel=\"noopener\"> la car<\/a><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/bestiaire\/\">angue crevalle (<i>Caranx hippos<\/i>)<\/a> et la carangue dentue (<i>Pseudocaranx dentex<\/i>). Enfin, des s\u00e9rioles juv\u00e9niles (<i>Seriola rivoliana<\/i>) en banc m\u00e9lang\u00e9s avec les carangue dentue sont visibles. Concernant les invert\u00e9br\u00e9s, on a crois\u00e9 un ct\u00e9nophore \u00e0 aile tachet\u00e9es (<i>Ocyropsis maculata).<\/i> \u00bb<\/p>\n<style type=\"text\/css\">\n#foogallery-gallery-1041 .fg-image { width: 160px; }\n#foogallery-gallery-1041 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-foobox-free fg-center fg-default fg-ready fg-light fg-round-small fg-loading-default fg-loaded-fade-in fg-hover-fade fg-hover-eye\" id=\"foogallery-gallery-1041\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:true,&quot;showCaptionDescription&quot;:false},&quot;lazy&quot;:true}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/sargasses-au-raz-de-leau.jpg\" data-caption-title=\"Sargasses \u00e0 la surface de l&#039;eau\" data-caption-desc=\"Tous les matins du monde les Sargasses regardent le ciel\n\u00a9 Thierry THIBAUT\" data-attachment-id=\"1037\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Sargasses \u00e0 la surface de l&#039;eau\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/sargasses-au-raz-de-leau\/2189881745.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Sargasses \u00e0 la surface de l'eau<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/vue-de-dessous.jpg\" data-caption-title=\"Vue sous les Sargasses\" data-caption-desc=\"\u00a9 Thierry THIBAUT\" data-attachment-id=\"1039\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Vue sous les Sargasses\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/vue-de-dessous\/3200067422.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Vue sous les Sargasses<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/TT-nen-croit-pas-ses-yeux.jpg\" data-caption-title=\"Thierry THIBAUT n&#039;en croit pas ses yeux !\" data-caption-desc=\"\u00a9 Thierry THIBAUT\" data-attachment-id=\"1038\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Thierry THIBAUT n&#039;en croit pas ses yeux !\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/TT-nen-croit-pas-ses-yeux\/40370016.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Thierry THIBAUT n'en croit pas ses yeux !<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/mystere-sous-le-radeau-Caranx-dentex-ou-carangue-a-grosse-l\u00e8vre.jpg\" data-caption-title=\"Myst\u00e8re sous le radeau\" data-caption-desc=\"Voil\u00e0 une carangue dentue (Caranx dentex) !\nPhoto \u00a9 Thierry THIBAUT\" data-attachment-id=\"1034\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Myst\u00e8re sous le radeau\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/mystere-sous-le-radeau-Caranx-dentex-ou-carangue-a-grosse-l\u00e8vre\/3244797178.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Myst\u00e8re sous le radeau<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/peche-sous-le-radeau.jpg\" data-caption-title=\"P\u00eache sous le radeau\" data-caption-desc=\"Les poissons entraient dans le filet mais ressortaient aussit\u00f4t : Rendement z\u00e9ro ! \n\u00a9 Thierry THIBAUT\" data-attachment-id=\"1036\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"P\u00eache sous le radeau\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/peche-sous-le-radeau\/3915882556.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">P\u00eache sous le radeau<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/obscurit\u00e9-sous-le-radeau-com\u00e8te-saumon-Elagatis.jpg\" data-caption-title=\"Com\u00e8te saumon (Elagatis bipinnulata) sous l&#039;obscurit\u00e9 du radeau\" data-caption-desc=\"\u00a9 Thierry THIBAUT\" data-attachment-id=\"1035\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Com\u00e8te saumon (Elagatis bipinnulata) sous l&#039;obscurit\u00e9 du radeau\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/obscurit\u00e9-sous-le-radeau-com\u00e8te-saumon-Elagatis\/3260217255.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Com\u00e8te saumon (Elagatis bipinnulata) sous l'obscurit\u00e9 du radeau<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/06\/la-vie-\u00e0-lombre-du-radeau-balistes.jpg\" data-caption-title=\"Un banc de baliste (Canthidermis sufflamen) \u00e0 l&#039;ombre des radeaux\" data-caption-desc=\"\u00a9 Thierry THIBAUT\" data-attachment-id=\"1033\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Un banc de baliste (Canthidermis sufflamen) \u00e0 l&#039;ombre des radeaux\" width=\"160\" height=\"160\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/la-vie-\u00e0-lombre-du-radeau-balistes\/3785721234.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22160%22%20height%3D%22160%22%20viewBox%3D%220%200%20160%20160%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Un banc de baliste (Canthidermis sufflamen) \u00e0 l'ombre des radeaux<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Thierry THIBAUT, chef de l\u2019exp\u00e9dition, nous raconte sa premi\u00e8re plong\u00e9e sous le premier radeau de Sargasses d\u00e9couvert le 26 juin.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[],"class_list":["post-1061","post","type-post","status-publish","format-standard","hentry","category-anecdotes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9eHwp-h7","_links":{"self":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1061"}],"version-history":[{"count":2,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1061\/revisions"}],"predecessor-version":[{"id":1063,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1061\/revisions\/1063"}],"wp:attachment":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}