{"id":11056,"date":"2019-07-12T12:15:49","date_gmt":"2019-07-12T10:15:49","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=11056"},"modified":"2019-07-12T12:21:00","modified_gmt":"2019-07-12T10:21:00","slug":"el-cuc-de-terra","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/animals-de-la-riera\/el-cuc-de-terra\/","title":{"rendered":"El cuc de terra"},"content":{"rendered":"<p><strong>CUC DE TERRA<\/strong><\/p>\n<p>El cuc de terra s\u00f3n an\u00e8l\u00b7lids oligoquets d\u2019origen aqu\u00e0tic i els podem trobar tan a la terra humida en profunditat com a dins de rius i rieres d\u2019aigua dol\u00e7a on poden viure d\u2019entre 4 a 5 anys. El seu nom cient\u00edfic \u00e9s <em>Lumbricus terrestris<\/em>.<\/p>\n<p><strong>\u00a0FORMA DEL COS:<\/strong><\/p>\n<p>El\u00a0 cos \u00e9s vermiforme ( en forma de cuc) amb una petita part m\u00e9s engruixida que s\u2019anomena clitel i que t\u00e9 funci\u00f3 reproductora. El seu cos est\u00e0 format per dues capes: l\u2019epidermis i la muscular. T\u00e9 m\u00fasculs circulars que es repeteixen a cada segment i t\u00e9 m\u00fasculs longitudinals. No presenta un cap ben diferenciat<a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-11058 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc.jpg\" alt=\"\" width=\"344\" height=\"172\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc.jpg 318w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc-300x150.jpg 300w\" sizes=\"auto, (max-width: 344px) 100vw, 344px\" \/><\/a><\/p>\n<p><strong>DESPLA\u00c7AMENT:<\/strong><\/p>\n<p>Les ones de contracci\u00f3 van endarrere, mentre el cuc es despla\u00e7a cap endavant. El seu moviment s\u2019assembla al d\u2019un acordi\u00f3.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>LA RESPIRACI\u00d3:<\/strong><\/p>\n<p>La respiraci\u00f3 \u00e9s cut\u00e0nia (per la pell) i necessita d\u2019humitat per poder viure.<\/p>\n<p><strong>LA NUTRICI\u00d3:<\/strong><\/p>\n<p>S\u00f3n omn\u00edvors. Ingereixen part\u00edcules del s\u00f2l i digereixen qualsevol resta org\u00e0nica. Quan la humitat a la superf\u00edcie \u00e9s alta arrosseguen fulles a l\u2019interior de la terra per alimentar-se.<br \/>\nArriben a ser molt voraces, ja que mengen prop del 90% del seu pes en un dia i excreta fins a un 60% de humus de cuc de gran qualitat\u00a0 com a nutrient per les plantes.<\/p>\n<p>No tenen dents, per\u00f2 tenen un aparell bucal que succiona i un intest\u00ed amb gran capacitat per absorbir nutrients de la terra que empassa. Sovint s\u2019observa l\u2019intest\u00ed ple de la terra a l\u2019ampliaci\u00f3 que ofereix la lupa binocular.<a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc-de-terra.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11059 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/cuc-de-terra.gif\" alt=\"\" width=\"389\" height=\"437\" \/><\/a><\/p>\n<p><strong>REPRODUCCI\u00d3<\/strong><\/p>\n<p>S\u00f3n hermafrodites, per\u00f2 no es poden autofecundar. Surten a l\u2019exterior per emparellar-se.<br \/>\nFan postes molt nombroses d\u2019entre 45 a 60 dies despr\u00e9s de la fecundaci\u00f3.<\/p>\n<p><strong>\u00a0<\/strong><strong>EL COMPORTAMENT<\/strong><\/p>\n<p>Pot estar-se molta estona quiet i sense activitat si les condicions s\u00f3n de baixa humitat.<strong><br \/>\n<\/strong>Excaven galeries en el s\u00f2l i surten de nit a explora el territori.<\/p>\n<p><strong>L\u2019H\u00c0BITAT<\/strong><\/p>\n<p>Necessita humitat.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u00a0\u00a0<\/strong><strong>CURIOSITATS:<\/strong><\/p>\n<ul>\n<li>Funci\u00f3 important en la ventilaci\u00f3 i homogene\u00eftzaci\u00f3 dels s\u00f2ls per les galeries que excaven. Ja que transporten la mat\u00e8ria del s\u00f2l i el fertilitzen fent ascendir f\u00f2sfor, potassi i el nitrogen de les seves pr\u00f2pies defecacions.<\/li>\n<li>Funci\u00f3 important d\u2019enriquiment del s\u00f2l, ja que transformen les resten org\u00e0niques en compostos que poden ser assimilats directament per les plantes.<\/li>\n<li>Poden regenerar-se si els queda el cap intacte. Si queda tallada en dos trossos. La part que cont\u00e9 el cap regenera la resta.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/Lombriz_640.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11060\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/Lombriz_640.jpg\" alt=\"\" width=\"640\" height=\"434\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/Lombriz_640.jpg 640w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/07\/Lombriz_640-300x203.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><strong>Per saber-ne m\u00e9s podeu consultar:<\/strong><\/p>\n<ul>\n<li>Nachtigall, Werner: \u201cAnimales de Charcas i estanques\u201d Guia de la Naturaleza Ed. Everest<\/li>\n<li>Eckart Pott: \u201cPeque\u00f1a guia de la flora i fauna de los r\u00edos y lagos de Europa\u201d Ed Omega<\/li>\n<li>Hist\u00f2ria Natrual dels Pa\u00efsos Catalans volum 8 Invertebrats no artr\u00f2pods Ed. Enciclop\u00e8dia Catalana.<\/li>\n<li>Ammann, Konrad: \u201cLa vida a les aig\u00fces dolces\u201d. Col\u00b7lecci\u00f3 Bivac. Ed. Teide<\/li>\n<li>Garc\u00eda-Valdecasas, Antonio; Vatic\u00f3n, Nacho : \u201c Los invertebrados de agua dulce\u201d Ed Penthalon<\/li>\n<li>Puig, Ma \u00c0ngels: \u201cEls macroinvertebrats dels rius catalans\u201d Departament de Medi Ambient Generalitat de Catalunya<\/li>\n<li>Macan, T.T. : \u201cGuia de animales invertebrtados de agua dulce\u201d Ed Eunsa<\/li>\n<li>https:\/\/es.wikipedia.org\/wiki\/Lumbricidae<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>CUC DE TERRA El cuc de terra s\u00f3n an\u00e8l\u00b7lids oligoquets d\u2019origen aqu\u00e0tic i els podem trobar tan a la terra humida en profunditat com a dins de rius i rieres d\u2019aigua dol\u00e7a on poden viure d\u2019entre 4 a 5 anys. El seu nom cient\u00edfic \u00e9s Lumbricus terrestris. \u00a0FORMA DEL COS: El\u00a0 cos \u00e9s vermiforme ( [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11058,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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":[374,318],"tags":[],"class_list":["post-11056","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-animals-de-la-riera","category-animals-de-la-riera"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=11056"}],"version-history":[{"count":2,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11056\/revisions"}],"predecessor-version":[{"id":11061,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11056\/revisions\/11061"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/11058"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=11056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=11056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=11056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}