{"id":23487,"date":"2025-05-27T10:37:27","date_gmt":"2025-05-27T08:37:27","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=23487"},"modified":"2025-05-28T10:39:35","modified_gmt":"2025-05-28T08:39:35","slug":"buscant-els-macroinvertebrats-invisibles-de-la-riera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/buscant-els-macroinvertebrats-invisibles-de-la-riera\/","title":{"rendered":"Buscant els macroinvertebrats invisibles de la riera"},"content":{"rendered":"
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\"\"El dilluns 26 de maig de 2025 vam rebre l\u2019alumnat de 6\u00e8 A<\/strong> de l\u2019Escola Merc\u00e8 Rodoreda<\/a> de Martorell al Camp d\u2019Aprenentatge de Can Santoi. El seu objectiu era descobrir la qualitat ecol\u00f2gica de la riera de Vallvidrera a trav\u00e9s de l\u2019estudi d\u2019uns \u00e9ssers que sovint passen desapercebuts: els macroinvertebrats aqu\u00e0tics<\/strong>.<\/p>\n

Despr\u00e9s d\u2019una curta introducci\u00f3, l\u2019alumnat va reflexionar sobre quins elements cal tenir en compte per entendre la salut d\u2019un ecosistema fluvial. Van aprendre que\u00a0 cal analitzar el bi\u00f2top<\/strong> (els factors ambientals com la temperatura, el corrent o la fond\u00e0ria) i la biocenosi<\/strong> (els \u00e9ssers vius que hi viuen).<\/p>\n

Un cop organitzats per equips i equipats amb tot el material necessari van iniciar la recollida de dades. Van mesurar la temperatura de l\u2019aigua i de l\u2019aire, la velocitat del corrent, l\u2019amplada i la fond\u00e0ria del riu, i tamb\u00e9 van observar el bosc de ribera i les caracter\u00edstiques f\u00edsiques i sensorials de l\u2019aigua.<\/p>\n

La part m\u00e9s sorprenent del dia va ser la captura de macroinvertebrats<\/strong>, utilitzant salabrets, pinzells i safates amb molta cura. Malgrat que s\u00f3n petits i dif\u00edcils de veure,<\/p>\n

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els nois i noies van aconseguir localitzar i recollir diverses esp\u00e8cies: sabaters, gambetes, larves de mosca negra, ef\u00edmeres, grill d\u2019aigua, barretets, espiadimonis i cucs de terra.<\/p>\n

Un cop tornats al Camp d\u2019Aprenentatge, van classificar els invertebrats<\/strong> amb lupes binoculars i les fitxes did\u00e0ctiques. Van aprendre que no tots els invertebrats s\u2019alimenten igual: alguns s\u00f3n herb\u00edvors, altres carn\u00edvors i que hi ha fins i tot d’omn\u00edvors, i aix\u00f2 ajuda a entendre millor com funciona l\u2019ecosistema i quin paper t\u00e9 cada esp\u00e8cie.<\/p>\n

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Els resultats van indicar una molt baixa qualitat <\/strong>de l\u2019aigua, fet que va portar a una reflexi\u00f3 conjunta sobre l\u2019impacte hum\u00e0 en els ecosistemes naturals i la import\u00e0ncia de conservar-los.<\/p>\n

Finalment, tots els animals van ser retornats al seu h\u00e0bitat, sans i estalvis. Ha estat una experi\u00e8ncia enriquidora i plena de descobertes. Enhorabona, 6\u00e8 A, per la vostra gran tasca com a joves naturalistes!<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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El dilluns 26 de maig de 2025 vam rebre l\u2019alumnat de 6\u00e8 A de l\u2019Escola Merc\u00e8 Rodoreda de Martorell al Camp d\u2019Aprenentatge de Can Santoi. El seu objectiu era descobrir la qualitat ecol\u00f2gica de la riera de Vallvidrera a trav\u00e9s de l\u2019estudi d\u2019uns \u00e9ssers que sovint passen desapercebuts: els macroinvertebrats aqu\u00e0tics. Despr\u00e9s d\u2019una curta introducci\u00f3, […]<\/p>\n","protected":false},"author":3,"featured_media":23496,"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":"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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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 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