{"id":11528,"date":"2020-02-20T15:06:26","date_gmt":"2020-02-20T14:06:26","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=11528"},"modified":"2020-02-20T15:06:26","modified_gmt":"2020-02-20T14:06:26","slug":"joves-cientifics-investiguen-la-riera-de-vallvidrera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/joves-cientifics-investiguen-la-riera-de-vallvidrera\/","title":{"rendered":"Joves cient\u00edfics investiguen la riera de Vallvidrera"},"content":{"rendered":"<p>Els alumnes de Biologia de 2n de Batxillerat de l\u2019<strong>Institut Fort Pius<\/strong> de Barcelona i de l\u2019<strong>Institut Mart\u00ed i Dot <\/strong>\u00a0de Sant Feliu de Llobregat han fet un <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/dinamica-dels-ecosistemes\/introduccio-a-la-limnologia-cursos-fluvials\/\" target=\"_blank\" rel=\"noopener noreferrer\">estudi limnol\u00f2gic de la riera de Vallvidrera<\/a> a l\u2019al\u00e7ada de Can Castellv\u00ed.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/IMG_1076bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11531 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/IMG_1076bis.jpg\" alt=\"\" width=\"300\" height=\"218\" \/><\/a>Han comen\u00e7at posant en com\u00fa quins aspectes podien investigar per con\u00e8ixer la qualitat ecol\u00f2gica de la riera. En aquesta introducci\u00f3 han calculat la superf\u00edcie de la conca hidrogr\u00e0fica, han esbrinat la geologia del terreny i per grups han revisat l\u2019inventari del material\u00a0 de camp necessari.<\/p>\n<p>L\u2019estudi es completa a partir de diverses fonts d\u2019informaci\u00f3: dades ambientals i fisicoqu\u00edmiques, qualitat del bosc de ribera i qualitat de l\u2019aigua utilitzant els macroinvertebrats aqu\u00e0tics com a bioindicadors.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/safata.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11535 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/safata.jpg\" alt=\"\" width=\"225\" height=\"300\" \/><\/a>Un cop a la riera han recopilat diverses dades com coordenades UTM, temperatures, granulometria del substrat, velocitat, amplada, fond\u00e0ries, transpar\u00e8ncia, etc. \u00a0Posteriorment han pogut calcular el cabal amb l\u2019ajut del <a href=\"http:\/\/www.xtec.cat\/cda-cansantoi\/Cabalsec2.xls\" target=\"_blank\" rel=\"noopener noreferrer\">programa Cabalsec<\/a>. Han agafat mostres d\u2019aigua per analitzar-la al laboratori i obtenir par\u00e0metres com duresa, conductivitat, mineralitzaci\u00f3, concentraci\u00f3 de nitrits i fosfats. Amb els kits de valoraci\u00f3 del <a href=\"http:\/\/www.projecterius.cat\/\" target=\"_blank\" rel=\"noopener noreferrer\">Projecte Rius<\/a> han determinat el pH aix\u00ed com la concentraci\u00f3 de nitrats i oxigen dissolt.<\/p>\n<p>Seguidament, han observat la vegetaci\u00f3 de ribera i amb l\u2019ajut dels protocols QRISI han pogut valorar l\u2019\u00edndex de qualitat del bosc de ribera.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/IMG_1080bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11532 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/02\/IMG_1080bis.jpg\" alt=\"\" width=\"300\" height=\"214\" \/><\/a>Finalment els alumnes han agafat els salabrets per capturar macroinvertebrats aqu\u00e0tics. Els han portat al laboratori \u00a0i amb l\u2019ajut de lupes binoculars i fitxes de suport els han identificat i han obtingut els corresponents \u00edndexs biol\u00f2gics. A partir d\u2019aquestes dades han pogut determinar la qualitat de l\u2019aigua en base al <a href=\"http:\/\/www.xtec.cat\/cda-cansantoi\/index_bmwpc.xls\" target=\"_blank\" rel=\"noopener noreferrer\">protocol IBMWPC<\/a>. En aquest cas ha donat una qualitat mediocre.<\/p>\n<p>Posteriorment s\u2019han tornat a alliberat tots els animals a la riera sans i estalvis.<\/p>\n<p>Han demostrat que tenen molt bones maneres per fer ci\u00e8ncia i els agra\u00efm la seva implicaci\u00f3 en la recollida de deixalles de la riera que fem en col\u00b7laboraci\u00f3 amb\u00a0 el col\u00b7lectiu <a href=\"https:\/\/www.petjadaverda.org\/src\/controllers\/homeController.php\" target=\"_blank\" rel=\"noopener noreferrer\">Petjada Verda<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els alumnes de Biologia de 2n de Batxillerat de l\u2019Institut Fort Pius de Barcelona i de l\u2019Institut Mart\u00ed i Dot \u00a0de Sant Feliu de Llobregat han fet un estudi limnol\u00f2gic de la riera de Vallvidrera a l\u2019al\u00e7ada de Can Castellv\u00ed. Han comen\u00e7at posant en com\u00fa quins aspectes podien investigar per con\u00e8ixer la qualitat ecol\u00f2gica de [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11533,"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-11528","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\/11528","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=11528"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11528\/revisions"}],"predecessor-version":[{"id":11537,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11528\/revisions\/11537"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/11533"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=11528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=11528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=11528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}