{"id":10100,"date":"2018-06-21T13:50:09","date_gmt":"2018-06-21T11:50:09","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=10100"},"modified":"2018-06-21T14:26:20","modified_gmt":"2018-06-21T12:26:20","slug":"barretet","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/barretet\/","title":{"rendered":"BARRETET (ANC\u00cdLID)"},"content":{"rendered":"<p>Entres els mol\u00b7lusc d\u2019aigua dol\u00e7a cal diferenciar entre dos tipus:<\/p>\n<ul>\n<li>Els gaster\u00f2podes que s\u2019arrosseguen amb el seu peu (pode) que \u00e9s a la vegada la seva panxa (gastero) s\u00f3n els que robem a la riera de Vallvidrera.<\/li>\n<li>Els bivalves. On la closca est\u00e0 formades per dos valves.<\/li>\n<\/ul>\n<p><strong>El Barretet \u00e9s un gaster\u00f2pode<\/strong><\/p>\n<p><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/BARRET.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10106\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/BARRET.jpg\" alt=\"\" width=\"255\" height=\"198\" \/><\/a><\/p>\n<p><strong>FORMA DEL COS:<\/strong><\/p>\n<p>T\u00e9 \u00a0la closca c\u00f2nica en forma de barretina punxeguda i t\u00e9 un parell de tentacles curts. Pot mesurar fins a un cent\u00edmetre d\u2019amplada i 0,3 a 0,4 cent\u00edmetres d\u2019altura.<\/p>\n<p><strong>DESPLA\u00c7AMENT:<\/strong><\/p>\n<p>Es despla\u00e7a molt lentament mitjan\u00e7ant el seu peu muscul\u00f3s.<\/p>\n<p><strong>LA RESPIRACI\u00d3: <\/strong><\/p>\n<p>\u00c9s un cargol pulmonat aqu\u00e0tic. \u00a0A dins de la closca presenta un pulm\u00f3 molt senzill, associat a unes br\u00e0nquies secund\u00e0ries. De tant en tant es despla\u00e7a fins a la superf\u00edcie per agafar l\u2019oxigen de l\u2019aire<\/p>\n<p>L<strong>A NUTRICI\u00d3: <\/strong><\/p>\n<p>\u00c9s herb\u00edvor (consumidor primari). Amb la r\u00e0dula que \u00e9s com una llengua recoberta de milers de\u00a0 dentetes va fregant com si fos un llima la superf\u00edcie d\u2019algues que es troben al c\u00f2dols.<\/p>\n<p><strong>\u00a0EL COMPORTAMENT. <\/strong><\/p>\n<p><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/BARRETETS1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10105 alignright\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/BARRETETS1.jpg\" alt=\"\" width=\"185\" height=\"272\" \/><\/a><\/p>\n<p><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/barretets.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10107 alignleft\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/barretets.jpg\" alt=\"\" width=\"298\" height=\"110\" \/><\/a>Pot resistir corrents forts d\u2019aigua ja que presenta un peu amb funci\u00f3 de ventosa que s\u2019adhereix a les pedres. D\u2019altra banda, la closca t\u00e9 forma aerodin\u00e0mica. L&#8217;altura de la closca li varia en funci\u00f3 dE les corrents. Disminueix \u00a0d\u2019altura\u00a0si la\u00a0corrent \u00e9s molt forta.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>CURIOSITATS:<\/strong><\/p>\n<ul>\n<li>La majoria de cargols d\u2019aigua dol\u00e7a no tenen opercle, que \u00e9s una pe\u00e7a de la mateixa naturalesa que la closca que la usen per tancar l\u2019obertura ( els hi fa de porta)<\/li>\n<li>Hi ha un insecte tric\u00f2pter que construeix una caseta semblant a la forma de la closca del barretet, per\u00f2 amb superf\u00edcie reticulada enlloc de llisa. Aquest animal\u00f3 t\u00e9 tres parells de pota i est\u00e0<\/li>\n<li>\u00a0<a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/b2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10110 alignright\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2018\/06\/b2.jpg\" alt=\"\" width=\"298\" height=\"226\" \/><\/a>molt lluny de ser un mol\u00b7lusc.<\/li>\n<\/ul>\n<p>&#8211;\u00a0 Per saber-ne m\u00e9s podeu consultar:<\/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\u00f2podes \u00a0Ed. 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<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Entres els mol\u00b7lusc d\u2019aigua dol\u00e7a cal diferenciar entre dos tipus: Els gaster\u00f2podes que s\u2019arrosseguen amb el seu peu (pode) que \u00e9s a la vegada la seva panxa (gastero) s\u00f3n els que robem a la riera de Vallvidrera. Els bivalves. On la closca est\u00e0 formades per dos valves. El Barretet \u00e9s un gaster\u00f2pode FORMA DEL COS: [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10109,"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":[374,1,318],"tags":[],"class_list":["post-10100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-animals-de-la-riera","category-general","category-animals-de-la-riera"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10100","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=10100"}],"version-history":[{"count":4,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10100\/revisions"}],"predecessor-version":[{"id":10115,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10100\/revisions\/10115"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/10109"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=10100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=10100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=10100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}