{"id":12840,"date":"2021-04-29T15:23:44","date_gmt":"2021-04-29T13:23:44","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=12840"},"modified":"2021-04-29T15:23:44","modified_gmt":"2021-04-29T13:23:44","slug":"joves-limnolegs-investiguen-la-riera-de-vallvidrera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/joves-limnolegs-investiguen-la-riera-de-vallvidrera\/","title":{"rendered":"Joves limn\u00f2legs investiguen la riera de Vallvidrera"},"content":{"rendered":"

Dijous 29 d’abril hem rebut la visita de l\u2019alumnat de 1r de Batxillerat de l\u2019Institut Francesc Ferrer i Gu\u00e0rdia<\/strong> de Sant Joan Desp\u00ed per fer un estudi limnol\u00f2gic de la Riera de Vallvidrera<\/a> a la zona de Can Castellv\u00ed.<\/p>\n

\"\"Primer han contextualitzat l\u2019\u00e0rea a estudiar calculant la superf\u00edcie de la conca hidrogr\u00e0fica i esbrinant de quins materials geol\u00f2gics est\u00e0 formada. Despr\u00e9s s\u2019han organitzat en equips de treball i han revisat el material necessari per dur a terme l\u2019estudi de camp, tant els par\u00e0metres fisicoqu\u00edmics (bi\u00f2top) com els referents a la biodiversitat (biocenosi), per poder determinar la qualitat de l\u2019aigua de la riera.<\/p>\n

Un cop a la riera han recollit les dades per equips (coordenades, temperatures, fond\u00e0ria, velocitat, transpar\u00e8ncia, olor, granulometria…) i han agafat mostres d\u2019aigua per completar\u00a0 l\u2019an\u00e0lisi al laboratori. Tamb\u00e9 han valorat l\u2019estat de conservaci\u00f3 de la vegetaci\u00f3 del bosc de ribera. I finalment s\u2019han dedicat a capturar macroinvertebrats aqu\u00e0tics que posteriorment farien servir com a bioindicadors. Han sigut bons ca\u00e7adors i han aconseguit atrapar una bona diversitat d\u2019organismes com ef\u00edmeres, espiadimonis, cargols aqu\u00e0tics,\u00a0 sabaters i altres. Incl\u00fas han enxampat un\u00a0 barb cua roja.<\/p>\n

\"\"Al laboratori han pogut acabar de calcular par\u00e0metres com la duresa, conductivitat, mineralitzaci\u00f3, concentraci\u00f3 de nitrits i fosfats, pH i oxigen dissolt amb l\u2019ajuda dels kits de valoraci\u00f3 del Projecte Rius<\/a>.<\/p>\n

Han estudiat els macroinvertebrats capturats amb l\u2019ajut de lupes binoculars i fitxes identificatives per determinar el seu \u00edndex biol\u00f2gic. Amb tota aquesta informaci\u00f3 fisicoqu\u00edmica i biol\u00f2gica han determinat la qualitat de l\u2019aigua en base al protocol IBMWPC, que ha donat com a resultat un estat mediocre.<\/p>\n

Per acabar s\u2019han tornat a alliberar sans i estalvis tots els animals capturats al seu h\u00e0bitat, on seguiran el seu cicle de vida!<\/p>\n

Felicitats, han sigut un grup molt aplicat i que tamb\u00e9 ha col\u00b7laborat en recollir la brossa que han trobat a\u00a0 la riera.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dijous 29 d’abril hem rebut la visita de l\u2019alumnat de 1r de Batxillerat de l\u2019Institut Francesc Ferrer i Gu\u00e0rdia de Sant Joan Desp\u00ed per fer un estudi limnol\u00f2gic de la Riera de Vallvidrera a la zona de Can Castellv\u00ed. Primer han contextualitzat l\u2019\u00e0rea a estudiar calculant la superf\u00edcie de la conca hidrogr\u00e0fica i esbrinant de […]<\/p>\n","protected":false},"author":3,"featured_media":12843,"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":[288,1,29],"tags":[],"class_list":["post-12840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecosistemes","category-general","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12840","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=12840"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12840\/revisions"}],"predecessor-version":[{"id":12846,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12840\/revisions\/12846"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/12843"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=12840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=12840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=12840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}