{"id":996,"date":"2017-06-27T16:57:02","date_gmt":"2017-06-27T14:57:02","guid":{"rendered":"https:\/\/sargasses.mio.osupytheas.fr\/?p=996"},"modified":"2017-06-30T11:09:34","modified_gmt":"2017-06-30T09:09:34","slug":"jour-9","status":"publish","type":"post","link":"https:\/\/sargasses.mio.osupytheas.fr\/?p=996","title":{"rendered":"[JOUR 9] Une biodiversit\u00e9 cach\u00e9e sous les radeaux !"},"content":{"rendered":"<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/2017\/06\/26\/jour-8\/\" target=\"_blank\" rel=\"noopener\">Pr\u00e9c\u00e9demment<\/a>, dans Exp\u00e9dition Sargasses\u2026<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le premier radeau de Sargasses a \u00e9t\u00e9 d\u00e9couvert. <a href=\"https:\/\/sargasses.mio.osupytheas.fr\/index.php\/equipage\/\" target=\"_blank\" rel=\"noopener\">Jean BLANCHOT<\/a>\u00a0raconte : <\/span><span style=\"font-weight: 400;\">\u00ab <\/span><span style=\"font-weight: 400;\">\u00c0 6h du matin, toute l\u2019\u00e9quipe prenait son petit-d\u00e9jeuner, quand soudain, la passerelle donne l\u2019alarme : un immense radeau de Sargasses est en vue ! On pouvait m\u00eame le voir \u00e0 travers le hublot ! Malgr\u00e9 l\u2019heure matinale, toute l\u2019\u00e9quipe scientifique et technique s\u2019est pr\u00e9cipit\u00e9e sur le ponton pour observer cette mer d\u2019algue tant attendue <\/span><span style=\"font-weight: 400;\">\u00bb<\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aujourd\u2019hui, nous en savons un peu plus sur ce g\u00e9ant : 7 m de profondeur, \u00e9tendu sur environ 2000 m\u00b2 ! Autant dire que la journ\u00e9e a \u00e9t\u00e9 intense avec, au programme, premi\u00e8re mise \u00e0 l\u2019eau du zodiac et premi\u00e8res plong\u00e9es ! Sous la face immerg\u00e9e du radeau, le monde \u00e9tait plus obscur, voire effrayant, \u00e0 cause de la densit\u00e9 des Sargasses emm\u00eal\u00e9es. Mais l\u2019\u00e9quipage \u00e9tait ravi de se retrouver enfin dans l\u2019eau, face \u00e0 face avec ces algues invasives.<\/span><\/p>\n<style type=\"text\/css\">\n#foogallery-gallery-982 .fg-image { width: 330px; }\n#foogallery-gallery-982 { --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-982\" 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\/lantea-accoste-le-radeau.jpg\" data-caption-title=\"L&#039;Ant\u00e9a accoste le radeau\" data-caption-desc=\"Sur le ponton l&#039;\u00e9quipage se rend compte de l&#039;incroyable \u00e9tendue de ce radeau !\n\u00a9 Hubert BATAILLE\" data-attachment-id=\"988\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img fetchpriority=\"high\" decoding=\"async\" title=\"L&#039;Ant\u00e9a accoste le radeau\" width=\"330\" height=\"230\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/lantea-accoste-le-radeau\/3409936278.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22330%22%20height%3D%22230%22%20viewBox%3D%220%200%20330%20230%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\">L'Ant\u00e9a accoste 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\/lantea.jpg\" data-caption-title=\"L&#039;Ant\u00e9a vu depuis le zodiac\" data-caption-desc=\"\u00a9 Hubert BATAILLE\" data-attachment-id=\"989\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"L&#039;Ant\u00e9a vu depuis le zodiac\" width=\"330\" height=\"230\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/lantea\/1671490328.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22330%22%20height%3D%22230%22%20viewBox%3D%220%200%20330%20230%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\">L'Ant\u00e9a vu depuis le zodiac<\/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\/radeau-bien-constitu\u00e9.jpg\" data-caption-title=\"Le fameux radeau de Sargasses\" data-caption-desc=\"7m de profondeur sur une \u00e9tendue de 2 000 m\u00b2 !\n\u00a9 Sandrine RUITTON\" data-attachment-id=\"985\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Le fameux radeau de Sargasses\" width=\"330\" height=\"230\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/radeau-bien-constitu\u00e9\/2506971179.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22330%22%20height%3D%22230%22%20viewBox%3D%220%200%20330%20230%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\">Le fameux radeau de 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\/radeau-observ\u00e9-par-m\u00e9caniciens.jpg\" data-caption-title=\"Les m\u00e9caniciens observent le radeau depuis le navire.\" data-caption-desc=\"\u00a9 Sandrine RUITTON\" data-attachment-id=\"984\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Les m\u00e9caniciens observent le radeau depuis le navire.\" width=\"330\" height=\"230\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/radeau-observ\u00e9-par-m\u00e9caniciens\/186630192.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22330%22%20height%3D%22230%22%20viewBox%3D%220%200%20330%20230%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\">Les m\u00e9caniciens observent le radeau depuis le navire.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n<p><span style=\"font-weight: 400;\">\u00c0 bord ensuite, tout le monde s\u2019est agit\u00e9 sur le pont : certains s\u2019occupaient de faire des pr\u00e9l\u00e8vements avec les filets p\u00e9lagiques, d\u2019autres prenaient ensuite leur place pour se servir des filets \u00e0 plancton. Apr\u00e8s tous ces pr\u00e9l\u00e8vements de poissons et de Sargasses, 8 gros bras ont accompagn\u00e9 la massive rosette pour la mettre \u00e0 l\u2019eau et obtenir des param\u00e8tres \u00e0 diverses profondeurs.<\/span><\/p>\n<style type=\"text\/css\">\n#foogallery-gallery-999 .fg-image { width: 200px; }\n#foogallery-gallery-999 { --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-loading-default fg-loaded-fade-in fg-hover-fade fg-hover-eye\" id=\"foogallery-gallery-999\" 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\/analyse-du-contenu-stomacal-des-poissons.jpg\" data-caption-title=\"Analyse du contenu stomacal des poissons\" data-caption-desc=\"\u00a9 Hubert BATAILLE\" data-attachment-id=\"990\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Analyse du contenu stomacal des poissons\" width=\"200\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/analyse-du-contenu-stomacal-des-poissons\/4236056670.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22200%22%20height%3D%22150%22%20viewBox%3D%220%200%20200%20150%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\">Analyse du contenu stomacal des poissons<\/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\/rosette-12-bouteilles-8L-mise-\u00e0-leau-par-le-moon-pool.jpg\" data-caption-title=\"Mise \u00e0 l&#039;eau de la rosette\" data-caption-desc=\"12 bouteilles Niskin de 8L vont permettre de faire de nombreux pr\u00e9l\u00e8vements.\n\u00a9 Sandrine RUITTON\" data-attachment-id=\"986\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Mise \u00e0 l&#039;eau de la rosette\" width=\"200\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/rosette-12-bouteilles-8L-mise-\u00e0-leau-par-le-moon-pool\/1988940027.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22200%22%20height%3D%22150%22%20viewBox%3D%220%200%20200%20150%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\">Mise \u00e0 l'eau de la rosette<\/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\/mesure-de-la-reflectance-au-trios.jpg\" data-caption-title=\"Mesure de la r\u00e9flectance des Sargasses.\" data-caption-desc=\"La r\u00e9flectance \u00e9tant la proportion de lumi\u00e8re r\u00e9fl\u00e9chie par la surface des algues.\n\u00a9 Hubert BATAILLE\" data-attachment-id=\"992\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Mesure de la r\u00e9flectance des Sargasses.\" width=\"200\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/cache\/2017\/06\/mesure-de-la-reflectance-au-trios\/2276518869.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22200%22%20height%3D%22150%22%20viewBox%3D%220%200%20200%20150%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\">Mesure de la r\u00e9flectance des Sargasses.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n<p><span style=\"font-weight: 400;\">Le radeau est impressionnant, d\u00e9crit par tous comme <\/span><span style=\"font-weight: 400;\">\u00ab <\/span><span style=\"font-weight: 400;\">une sorte d&#8217;iceberg brun duquel rien ne d\u00e9passe : tout est en dessous <\/span><span style=\"font-weight: 400;\">\u00bb<\/span><span style=\"font-weight: 400;\">. Comme suppos\u00e9 hier, il constitue bien un DCP naturel : un Dispositif Concentrateur de Poissons. En son sein tournoient des milliers d\u2019organismes marins : carangues, com\u00e8tes saumons, thons, balistes, crevettes-mantes\u2026 De nouveaux plats succulents pour notre chef cuistot ? Non, tout cela ne nous servira pas de repas, mais plut\u00f4t \u00e0 d\u00e9terminer le r\u00e9seau trophique associ\u00e9 au radeau. En pr\u00e9cisant les interactions entre \u00eatres vivants, peut \u00eatre trouverons nous des indices sur l\u2019origine de la multiplication des Sargasses.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bilan de la journ\u00e9e, tout le monde a travaill\u00e9 sans rel\u00e2che et est ext\u00e9nu\u00e9 ! Demain, il n\u2019y aura pas d&#8217;\u00e9chantillonnage\u2026 Mais l&#8217;Ant\u00e9a suivra son cap, progressant dans les eaux de la Barbade. \u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9c\u00e9demment, dans Exp\u00e9dition Sargasses\u2026 Le premier radeau de Sargasses a \u00e9t\u00e9 d\u00e9couvert. Jean BLANCHOT\u00a0raconte : \u00ab \u00c0 6h du matin, toute l\u2019\u00e9quipe prenait son petit-d\u00e9jeuner, quand soudain, la passerelle donne l\u2019alarme : un immense radeau de Sargasses est en vue ! On pouvait m\u00eame le voir \u00e0 travers le hublot ! Malgr\u00e9 l\u2019heure matinale, toute l\u2019\u00e9quipe scientifique et technique s\u2019est pr\u00e9cipit\u00e9e sur le ponton pour observer cette mer d\u2019algue tant attendue \u00bb. Aujourd\u2019hui, nous en savons un peu plus sur&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/sargasses.mio.osupytheas.fr\/?p=996\">Lire la suite<span class=\"screen-reader-text\"> Lire la suite<\/span><\/a><\/p>\n","protected":false},"author":7,"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":[1],"tags":[],"class_list":["post-996","post","type-post","status-publish","format-standard","hentry","category-journal-de-bord"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9eHwp-g4","_links":{"self":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/996","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\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=996"}],"version-history":[{"count":8,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/996\/revisions"}],"predecessor-version":[{"id":1060,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/996\/revisions\/1060"}],"wp:attachment":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}