{"id":6043,"date":"2014-01-13T08:00:44","date_gmt":"2014-01-13T07:00:44","guid":{"rendered":"http:\/\/codexvirtualis.fr\/codex\/?p=6043"},"modified":"2014-01-09T21:49:28","modified_gmt":"2014-01-09T20:49:28","slug":"semaine-03-2014","status":"publish","type":"post","link":"https:\/\/codexvirtualis.fr\/codex\/semaine-03-2014","title":{"rendered":"Semaine 03-2014"},"content":{"rendered":"

Une citation<\/h2>\n

\u00ab\u00a0L\u2019optimisme c\u2019est aussi de dire qu\u2019il y a de la tristesse dans la vie, du malheur.
\nDire que tout va bien, que tout va bien se passer, ce n\u2019est pas de l\u2019optimisme, c\u2019est de la b\u00eatise.\u00a0\u00bb<\/p>\n

C. Klapisch<\/p>\n

  <\/p>\n

Une image<\/h2>\n
\"Bigorneau\"<\/a>
Bigorneau (Roscoff, f\u00e9vrier 2011)<\/figcaption><\/figure>\n

  <\/p>\n

Le Bigorneau, \u00e9galement nomm\u00e9 Littorine littorale (Littorina littorea<\/em>), est un Mollusque Gast\u00e9ropode de la famille des Littorinid\u00e9s.<\/p>\n

Pr\u00e9sent en milieu rocheux, il fr\u00e9quente la zone du littoral alternativement immerg\u00e9e et \u00e9merg\u00e9e par la mar\u00e9e, appel\u00e9e zone de balancement des mar\u00e9es ou zone intertidale, avec une pr\u00e9f\u00e9rence pour ses parties moyenne et inf\u00e9rieure.<\/p>\n

Il est en particulier rencontr\u00e9 sous les algues brunes ou les pierres, dans les crevasses et les mares.<\/p>\n

Il se d\u00e9place le plus souvent \u00e0 l’obscurit\u00e9 et lorsqu’il est immerg\u00e9.<\/p>\n

  <\/p>\n

Le Bigorneau est reconnu \u00e0 sa coquille pointue, de couleur noire ou gris sombre, dont le sommet souvent clair.
\nSpiral\u00e9e et conique, elle est haute de 20 \u00e0 30 mm et comporte cinq \u00e0 six tours joints par des lignes l\u00e9g\u00e8rement creus\u00e9es.
\nElle est par ailleurs orn\u00e9e de stries claires et sombres.<\/p>\n

L’ouverture de la coquille est ovale et sombre, et peut \u00eatre obtur\u00e9e par un opercule corn\u00e9 en forme de goutte.<\/p>\n

  <\/p>\n

L’esp\u00e8ce est herbivore et s’alimente notamment \u00e0 mar\u00e9e haute.<\/p>\n

Elle se nourrit des algues unicellulaires vivant \u00e0 la surface des rochers ou des algues brunes, ainsi que d’algues vertes.<\/p>\n

Gr\u00e2ce \u00e0 sa radula, langue r\u00e2peuse associ\u00e9e \u00e0 la cavit\u00e9 buccale portant de petites dents, elle d\u00e9tache des particules alimentaires qu’elle avale ensuite.<\/p>\n

  <\/p>\n

Le Bigorneau est une proie pour les Go\u00e9lands, certains Crabes, quelques \u00c9toiles de mer et poissons, ainsi que pour l’Homme dont il compose les plateaux de fruits de mer.<\/p>\n

  <\/p>\n

Pour en savoir plus, consulter :<\/p>\n

• <\/span>le site 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

et notamment<\/p>\n

• <\/span>la fiche SCOUPPE Christian, ZIEMSKI Fr\u00e9d\u00e9ric, in : DORIS, 13\/8\/2009 : Littorina littorea (Linnaeus, 1758)<\/a> (adresse : http:\/\/doris.ffessm.fr\/fiche2.asp?fiche_numero=1655)<\/p>\n

  <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Une citation \u00ab\u00a0L\u2019optimisme c\u2019est aussi de dire qu\u2019il y a de la tristesse dans la vie, du malheur. Dire que tout va bien, que tout va bien se passer, ce n\u2019est pas de l\u2019optimisme, c\u2019est de la b\u00eatise.\u00a0\u00bb C. Klapisch   Une image   Le Bigorneau, \u00e9galement nomm\u00e9 Littorine littorale (Littorina littorea), est un Mollusque […]<\/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-6043","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\/6043","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=6043"}],"version-history":[{"count":12,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/6043\/revisions"}],"predecessor-version":[{"id":6073,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/posts\/6043\/revisions\/6073"}],"wp:attachment":[{"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/media?parent=6043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/categories?post=6043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codexvirtualis.fr\/codex\/wp-json\/wp\/v2\/tags?post=6043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}