{"id":22617,"date":"2025-03-14T16:35:46","date_gmt":"2025-03-14T15:35:46","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=22617"},"modified":"2025-03-19T13:12:02","modified_gmt":"2025-03-19T12:12:02","slug":"joants-i-joanotes-estudien-la-riera-de-vallvidrera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/joants-i-joanotes-estudien-la-riera-de-vallvidrera\/","title":{"rendered":"Joants i Joanotes estudien la riera de Vallvidrera"},"content":{"rendered":"<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-22623\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/PHOTO-2025-03-13-13-15-11_3-225x300.jpg\" alt=\"\" width=\"206\" height=\"275\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/PHOTO-2025-03-13-13-15-11_3-225x300.jpg 225w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/PHOTO-2025-03-13-13-15-11_3.jpg 600w\" sizes=\"auto, (max-width: 206px) 100vw, 206px\" \/>Dijous, 13 de mar\u00e7 de 2025, hem rebut l&#8217;alumnat de 4t d&#8217;ESO de l&#8217;<a href=\"http:\/\/www.institutjoanbrossa.cat\/\">Institut Joanot Martorell <\/a>d&#8217;Esplugues de Llobregat. Despr\u00e9s de la visita geol\u00f2gica de l&#8217;any passat, aquest cop han vingut al <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/\">CdA Can Santoi<\/a> per avaluar l&#8217;<a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/dinamica-dels-ecosistemes\/estudi-ecologic-de-la-riera-de-vallvidrera\/\" target=\"_blank\" rel=\"noopener\">estat ecol\u00f2gic de la riera de Vallvidrera.<\/a><\/p>\n<p style=\"text-align: justify;\">En primer lloc, han participat en una pluja d\u2019idees on han exposat quines serien algunes de les caracter\u00edstiques de la riera que caldria estudiar per con\u00e8ixer el seu estat de salut. Han ent\u00e8s que, per avaluar aquest ecosistema, cal analitzar tant els factors ambientals com els \u00e9ssers vius que hi trobem. Els par\u00e0metres fisicoqu\u00edmics constitueixen el bi\u00f2top, mentre que la biodiversitat s&#8217;anomena biocenosi. De fet, han descobert que existeix un \u00edndex bi\u00f2tic basat \u00fanicament en la pres\u00e8ncia de macroinvertebrats per determinar la qualitat de l&#8217;aigua. Seguidament, s\u2019han dividit en grups de treball i han revisat tot el material necessari per dur a terme el seu estudi.<\/p>\n<p style=\"text-align: justify;\">Un cop a la riera, els diferents grups han anotat un seguit de dades com la temperatura de l&#8217;aire i de l&#8217;aigua, l&#8217;amplada, la fond\u00e0ria, la velocitat del corrent, el color i l&#8217;olor de l&#8217;aigua de la riera. Despr\u00e9s s\u2019han fixat en els arbres i plantes que formen el bosc de ribera en aquest tram i han concl\u00f2s el seu estudi capturant una bona mostra d\u2019invertebrats aqu\u00e0tics amb l\u2019ajuda dels salabrets i els pinzells: cargols de fang, barretets, gambetes d\u2019aigua dol\u00e7a, sabaters, grills d\u2019aigua, nimfes d\u2019espiadimonis, larves d\u2019ef\u00edmeres, de mosca negra i de d\u00edxid, a m\u00e9s d&#8217;un cuc de terra que estava enterrat en el sediment.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-22626 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/20250313_121134-300x225.jpg\" alt=\"\" width=\"288\" height=\"216\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/20250313_121134-300x225.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/20250313_121134-768x576.jpg 768w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/20250313_121134-200x150.jpg 200w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/03\/20250313_121134.jpg 800w\" sizes=\"auto, (max-width: 288px) 100vw, 288px\" \/><\/p>\n<p style=\"text-align: justify;\">Per \u00faltim, han tornat al laboratori del Camp d\u2019Aprenentatge per tal d&#8217;identificar els animalons amb l\u2019ajut de lupes binoculars i fitxes de suport. Amb tot aix\u00f2 han pogut avaluar la qualitat de l\u2019aigua de la riera de Vallvidrera i s\u2019han sorpr\u00e8s en obtenir una \u201cqualitat deficient\u201d. Arrel d\u2019aquestes conclusions han reflexionat sobre el nostre impacte en aquest i altres ecosistemes conscienciant-se de la import\u00e0ncia de mantenir-los nets.<\/p>\n<p style=\"text-align: justify;\">Per acabar, han tornat a alliberar sans i estalvis tots els animals capturats al seu h\u00e0bitat, on seguiran el seu cicle de vida.\u00a0Felicitats per la feina realitzada<span style=\"font-family: inherit; font-size: 1em; text-align: justify;\">, heu sigut uns grans investigadors i investigadores! Fins aviat!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dijous, 13 de mar\u00e7 de 2025, hem rebut l&#8217;alumnat de 4t d&#8217;ESO de l&#8217;Institut Joanot Martorell d&#8217;Esplugues de Llobregat. Despr\u00e9s de la visita geol\u00f2gica de l&#8217;any passat, aquest cop han vingut al CdA Can Santoi per avaluar l&#8217;estat ecol\u00f2gic de la riera de Vallvidrera. En primer lloc, han participat en una pluja d\u2019idees on han [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":22619,"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 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