{"id":1890,"date":"2017-10-25T17:49:11","date_gmt":"2017-10-25T15:49:11","guid":{"rendered":"https:\/\/sargasses.mio.osupytheas.fr\/?p=1890"},"modified":"2017-10-26T23:12:18","modified_gmt":"2017-10-26T21:12:18","slug":"jour-17-pendant-la-navigation-on-en-apprend-encore-plus-sur-ces-mythiques-poissons-volants","status":"publish","type":"post","link":"https:\/\/sargasses.mio.osupytheas.fr\/?p=1890","title":{"rendered":"[JOUR 17] Pendant la navigation on en apprend encore plus sur ces mythiques poissons volants !"},"content":{"rendered":"<p>Encore de la navigation pour aujourd\u2019hui. Nos scientifiques travaillent alors dans leurs bureaux et dans les diff\u00e9rents laboratoires mais tous guettent r\u00e9guli\u00e8rement la mer pour noter la pr\u00e9sence ou non de Sargasses. C\u2019est \u00e9galement l\u2019occasion d\u2019observer des oiseaux marins et des poissons volants.<\/p>\n<p>Revenons donc \u00e0 nos fameux poissons volants, nous avons parl\u00e9 de l\u2019Exocet au <a href=\"https:\/\/sargasses.mio.osupytheas.fr\/?p=1816\">jour 15<\/a> qui tient son nom du latin <i>exocoetus<\/i> qui signifie \u00ab qui sort de sa demeure \u00bb et du grec ex\u00f4koitos : ex\u00f4 \u00ab au-dehors \u00bb et koit\u00ea \u00ab lit de la mer ou d\u2019un fleuve \u00bb. Bref\u2019 vous l\u2019aurez compris, l\u2019exocet a la possibilit\u00e9, gr\u00e2ce \u00e0 ses grandes nageoires pectorales, de se maintenir hors de l\u2019eau sur plusieurs m\u00e8tres&#8230; en planant ! Chez certaines esp\u00e8ces les nageoires pelviennes sont \u00e9galement d\u00e9velopp\u00e9es ce qui donnent au poissons la possibilit\u00e9 d\u2019avoir 4 ailes \u00e0 d\u00e9ployer ! Autre fait int\u00e9ressant, pendant son vol, il est m\u00eame capable de faire, gr\u00e2ce \u00e0 l\u2019extr\u00e9mit\u00e9 de sa queue, des mouvement en forme de 8 dans l\u2019eau pour reprendre de la vitesse !<\/p>\n<style type=\"text\/css\">\n#foogallery-gallery-1896 .fg-image { width: 150px; }\n#foogallery-gallery-1896 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-foobox 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-1896\" 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\/10\/SR_fou-masqu\u00e9.jpg\" data-caption-title=\"Fou masqu\u00e9 qui survole le bateau\" data-caption-desc=\"\u00a9 Sandrine RUITTON\" data-attachment-id=\"1893\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Fou masqu\u00e9 qui survole le bateau\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/10\/SR_fou-masqu\u00e9-150x150.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22150%22%20height%3D%22150%22%20viewBox%3D%220%200%20150%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\">Fou masqu\u00e9 qui survole le bateau<\/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\/10\/SR_Poisso-volant-avec-4-ailes-deployees.jpg\" data-caption-title=\"Poisson volant avec ces 4 ailes d\u00e9ploy\u00e9es !\" data-caption-desc=\"\u00a9 Sandrine RUITTON\" data-attachment-id=\"1895\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Poisson volant avec ces 4 ailes d\u00e9ploy\u00e9es !\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/10\/SR_Poisso-volant-avec-4-ailes-deployees-150x150.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22150%22%20height%3D%22150%22%20viewBox%3D%220%200%20150%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\">Poisson volant avec ces 4 ailes d\u00e9ploy\u00e9es !<\/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\/10\/SR_Queue-asymetrique-du-poisson-volant.jpg\" data-caption-title=\"Queue asym\u00e9trique du poisson volant\" data-caption-desc=\"\u00a9 Sandrine RUITTON\" data-attachment-id=\"1892\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Queue asym\u00e9trique du poisson volant\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/sargasses.mio.osupytheas.fr\/wp-content\/uploads\/2017\/10\/SR_Queue-asymetrique-du-poisson-volant-150x150.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22150%22%20height%3D%22150%22%20viewBox%3D%220%200%20150%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\">Queue asym\u00e9trique du poisson volant<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n<p>Comme nous l\u2019avions d\u00e9j\u00e0 pr\u00e9cis\u00e9 l\u2019esp\u00e8ce que nous observons le plus lors de la travers\u00e9e est le hareng volant (<i>Hirundichthys affinis<\/i>). C\u2019est aussi une des plus grosses esp\u00e8ces qui peut atteindre 33 cm de longueur totale.<\/p>\n<p>Mais d\u2019ailleurs pourquoi les poissons volants volent &#8211; ils ?<\/p>\n<p>Pour \u00e9chapper aux pr\u00e9dateurs bien s\u00fbr ! En effet ces petits poissons sont nombreux et constituent une ressource alimentaire importante pour les piscivores (les mangeurs de poissons) tels que les dorades coryph\u00e8nes (<a href=\"https:\/\/sargasses.mio.osupytheas.fr\/?page_id=29\">qui ont une technique toute particuli\u00e8re<\/a>) ou encore les thons.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Encore de la navigation pour aujourd\u2019hui. Nos scientifiques travaillent alors dans leurs bureaux et dans les diff\u00e9rents laboratoires mais tous guettent r\u00e9guli\u00e8rement la mer pour noter la pr\u00e9sence ou non de Sargasses. C\u2019est \u00e9galement l\u2019occasion d\u2019observer des oiseaux marins et des poissons volants.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[],"class_list":["post-1890","post","type-post","status-publish","format-standard","hentry","category-mission-sargasse-ii"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9eHwp-uu","_links":{"self":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1890","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=1890"}],"version-history":[{"count":3,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1890\/revisions"}],"predecessor-version":[{"id":1922,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=\/wp\/v2\/posts\/1890\/revisions\/1922"}],"wp:attachment":[{"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sargasses.mio.osupytheas.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}