{"id":6141,"date":"2014-03-03T08:00:39","date_gmt":"2014-03-03T07:00:39","guid":{"rendered":"http:\/\/codexvirtualis.fr\/codex\/?p=6141"},"modified":"2014-02-19T21:48:01","modified_gmt":"2014-02-19T20:48:01","slug":"semaine-10-2014","status":"publish","type":"post","link":"https:\/\/codexvirtualis.fr\/codex\/semaine-10-2014","title":{"rendered":"Semaine 10-2014"},"content":{"rendered":"<h2>Une citation<\/h2>\n<p>\u00ab\u00a0On ne doit mettre son espoir qu&rsquo;en soi-m\u00eame.\u00a0\u00bb<\/p>\n<p>Virgile<\/p>\n<p> &nbsp; <\/p>\n<h2>Une image<\/h2>\n<figure style=\"width: 300px\" class=\"wp-caption alignnone\"><a rel=\"lightbox\" href=\"\/documents\/images\/buccinum_undatum_oeufs02-09-WEB.JPG\" target=\"_blank\"><img decoding=\"async\" src=\"\/documents\/images\/buccinum_undatum_oeufs02-09-WEB.JPG\" width=\"300\" alt=\"Ponte de Buccin ond\u00e9\" class \/><\/a><figcaption class=\"wp-caption-text\">Capsules contenant des \u0153ufs de Buccin ond\u00e9 (Carantec, f\u00e9vrier 2009)<\/figcaption><\/figure>\n<p> &nbsp; <\/p>\n<p>Le Buccin ond\u00e9 (<em>Buccinum undatum<\/em>), Mollusque Gast\u00e9ropode repr\u00e9sentant de la famille des Buccinid\u00e9s, a fait l&rsquo;objet de l&rsquo;article de la <a href=\"\/codex\/semaine-09-2014\">semaine 09-2014<\/a>.<\/p>\n<p> &nbsp; <\/p>\n<p>Dans cette esp\u00e8ce, les sexes sont s\u00e9par\u00e9s.<\/p>\n<p>Sur nos c\u00f4tes, les Buccins ond\u00e9s se regroupent en automne, saison de la reproduction.<\/p>\n<p>Le m\u00e2le transf\u00e8re des spermatozo\u00efdes \u00e0 la femelle \u00e0 la faveur d&rsquo;un accouplement, qui conduit \u00e0 une f\u00e9condation interne.<\/p>\n<p>Apr\u00e8s quelques semaines, la femelle d\u00e9pose sur les rochers ou \u00e0 la base des algues des groupes de capsules. Ils forment des amas de couleur blanch\u00e2tre ou jaun\u00e2tre.<br \/>\nL&rsquo;image de la <a href=\"\/codex\/semaine-09-2014\">semaine 09-2014<\/a> repr\u00e9sente cette oviposition.<\/p>\n<p> &nbsp; <\/p>\n<p>Chaque capsule abrite de multiples <a href=\"\/codex\/glossaire\/glossaire-de-i-a-o#oeuf\" target=\"_blank\">\u0153ufs<\/a> en cours de d\u00e9veloppement.<br \/>\nAu sein de son enveloppe, le <a href=\"\/codex\/glossaire\/glossaire-de-d-a-h#developpement-embryonnaire\" target=\"_blank\">d\u00e9veloppement embryonnaire<\/a> dure 5 \u00e0 8 mois.<br \/>\nPendant cette p\u00e9riode, les embryons avort\u00e9s sont consomm\u00e9s par les embryons vivants, ph\u00e9nom\u00e8ne appel\u00e9 adelphophagie.<\/p>\n<p>Au terme du d\u00e9veloppement embryonnaire, quelques individus <a href=\"\/codex\/glossaire\/glossaire-de-i-a-o#juvenile\" target=\"_blank\">juv\u00e9niles<\/a> sont lib\u00e9r\u00e9s par l&rsquo;ouverture des capsules.<br \/>\nSemblables aux adultes en termes de milieu et de mode vie mais aussi de morphologie et d&rsquo;anatomie, ils t\u00e9moignent du <a href=\"\/codex\/glossaire\/glossaire-de-d-a-h#developpement-direct\" target=\"_blank\">d\u00e9veloppement direct<\/a> de l&rsquo;esp\u00e8ce.<br \/>\nIls fr\u00e9quentent parfois la zone de balancement des mar\u00e9es.<\/p>\n<p> &nbsp; <\/p>\n<p>La dur\u00e9e de vie des individus est de l&rsquo;ordre de 10 ans alors que la maturit\u00e9 sexuelle est atteinte \u00e0 4 ou 5 ans.<\/p>\n<p> &nbsp; <\/p>\n<p>Pour en savoir plus, consulter :<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>le site <a href=\"http:\/\/doris.ffessm.fr\" target=\"_blank\">Doris<\/a> (Donn\u00e9es d\u2019observations pour la reconnaissance et l\u2019identification de la faune et de la flore subaquatiques \u2013 F\u00e9d\u00e9ration fran\u00e7aise d\u2019\u00e9tudes et de sports sous-marins \u2013 adresse : http:\/\/doris.ffessm.fr)<\/p>\n<p>et notamment<\/p>\n<p><span style=\"color: #999999;\">&bull; <\/span>la fiche <a href=\"http:\/\/doris.ffessm.fr\/fiche2.asp?fiche_numero=860\" target=\"_blank\">FEY Laurent, BURON Daniel, M\u00dcLLER Yves,  in : DORIS, 25\/1\/2014 : Buccinum undatum Linnaeus 1758<\/a> (adresse : http:\/\/doris.ffessm.fr\/fiche2.asp?fiche_numero=860)<\/p>\n<p> &nbsp; <\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>Une citation \u00ab\u00a0On ne doit mettre son espoir qu&rsquo;en soi-m\u00eame.\u00a0\u00bb Virgile &nbsp; Une image &nbsp; Le Buccin ond\u00e9 (Buccinum undatum), Mollusque Gast\u00e9ropode repr\u00e9sentant de la famille des Buccinid\u00e9s, a fait l&rsquo;objet de l&rsquo;article de la semaine 09-2014. &nbsp; Dans cette esp\u00e8ce, les sexes sont s\u00e9par\u00e9s. Sur nos c\u00f4tes, les Buccins ond\u00e9s se regroupent en automne, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[28,12,23],"class_list":["post-6141","post","type-post","status-publish","format-standard","hentry","category-a-la-une","tag-biologie","tag-mollusque","tag-observation"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/6141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/comments?post=6141"}],"version-history":[{"count":13,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/6141\/revisions"}],"predecessor-version":[{"id":6143,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/6141\/revisions\/6143"}],"wp:attachment":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/media?parent=6141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/categories?post=6141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/tags?post=6141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}