{"id":6635,"date":"2020-12-03T13:43:14","date_gmt":"2020-12-03T12:43:14","guid":{"rendered":"https:\/\/www.mio.osupytheas.fr\/fr\/les-apports-de-poussieres-sahariennes-stimulent-le-plancton-de-mediterranee\/"},"modified":"2020-12-03T13:43:14","modified_gmt":"2020-12-03T12:43:14","slug":"les-apports-de-poussieres-sahariennes-stimulent-le-plancton-de-mediterranee","status":"publish","type":"post","link":"https:\/\/www.mio.osupytheas.fr\/fr\/les-apports-de-poussieres-sahariennes-stimulent-le-plancton-de-mediterranee\/","title":{"rendered":"Les apports de poussi\u00e8res sahariennes stimulent le plancton de M\u00e9diterran\u00e9e"},"content":{"rendered":"<div id=\"basic-page-content\" class=\"page-content\">    <div class=\"content\">    <div class=\"container\">      <div class=\"row\">        <div class=\"col-xs-12\">                      <div class=\"container clearfix\">              <div class=\"row\">                <div class=\"col-xs-12\">                                  <\/div>              <\/div>            <\/div>                                <div class=\"body\">              <div class=\"field field-name-body field-type-text-with-summary field-label-hidden\"><div class=\"field-items\"><div class=\"field-item even\" property=\"content:encoded\"><p class=\"rtejustify\">La campagne Peacetime-MERMEX a permis d&#8217;observer la r\u00e9activit\u00e9 du zooplancton m\u00e9diterran\u00e9en aux apports de poussi\u00e8res sahariennes.<\/p><p class=\"rtejustify\">Deux \u00e9v\u00e8nements de poussi\u00e8re,\u00a0 l&#8217;un traqu\u00e9 par satellite qui a permis une \u00e9tude d\u00e8s le d\u00e9p\u00f4t en mer (dans le bassin Alg\u00e9rien),\u00a0 et l&#8217;autre survenu quelques jours avant le passage dans la zone impact\u00e9e (au sud de la mer Tyrrh\u00e9nienne), ont permis d&#8217;\u00e9tudier pour la premi\u00e8re fois in situ la r\u00e9ponse de l&#8217;\u00e9cosyst\u00e8me p\u00e9lagique dans un\u00a0 milieu naturellement tr\u00e8s oligotrophe.<\/p><p class=\"rtejustify\">Les apports d&#8217;\u00e9l\u00e9ments nutritifs par les poussi\u00e8res ont induit une r\u00e9ponse imm\u00e9diate du compartiment des micro-autotrophes planctoniques qui s&#8217;est rapidement r\u00e9percut\u00e9e sur compartiment zooplanctonique cr\u00e9ant un habitat trophique attractif pour certaines esp\u00e8ces (grands brouteurs migrants, leurs pr\u00e9dateurs), et inhospitalier et dangereux pour d&#8217;autres (filtreurs de petite particules) entrainant des modifications importantes de la bioc\u0153nose planctonique.<\/p><p class=\"rtejustify\">L&#8217;\u00e9tude dynamique de ces modifications rendue possible en associant les deux \u00e9v\u00e8nements a permis d&#8217;estimer \u00e0 2 ou 3 semaines le retour \u00e0 l&#8217;\u00e9tat initial des communaut\u00e9s zooplanctoniques.<\/p><p class=\"rtejustify\">La fr\u00e9quence des \u00e9v\u00e8nements sahariens apparait donc comme un facteur important pour la productivit\u00e9 des bassins sud de la M\u00e9diterran\u00e9e et l&#8217;export de mati\u00e8re.<\/p><p class=\"rtejustify\">\u00a0<\/p><p class=\"rtejustify\">==&gt;\u00a0 Guillermo Feli\u00fa, Marc Pagano, Pamela Hidalgo, Francois Carlotti. Structure and function of epipelagic mesozooplankton and their response to dust deposition events during the spring PEACETIME cruise in the Mediterranean Sea. Biogeosciences, European Geosciences Union, 2020, 17 (21), pp.5417-5441. \u27e810.5194\/bg-17-5417-2020\u27e9. \u27e8hal-03002613\u27e9<\/p><\/div><\/div><\/div>            <\/div>                            <\/div>      <\/div>    <\/div>  <\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>La campagne Peacetime-MERMEX a permis d&#8217;observer la r\u00e9activit\u00e9 du zooplancton m\u00e9diterran\u00e9en aux apports de poussi\u00e8res sahariennes.Deux \u00e9v\u00e8nements de poussi\u00e8re,\u00a0 l&#8217;un traqu\u00e9 par satellite qui a permis une \u00e9tude d\u00e8s le [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts\/6635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/comments?post=6635"}],"version-history":[{"count":0,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts\/6635\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media\/4489"}],"wp:attachment":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media?parent=6635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/categories?post=6635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/tags?post=6635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}