{"id":64274,"date":"2026-04-23T12:17:52","date_gmt":"2026-04-23T10:17:52","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/?post_type=noticia-proyecto&#038;p=64274"},"modified":"2026-04-23T12:26:41","modified_gmt":"2026-04-23T10:26:41","slug":"aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor","status":"publish","type":"noticia-proyecto","link":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/","title":{"rendered":"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk"},"content":{"rendered":"<p>The <strong>Aguieira reservoir<\/strong>, one of the most important aquatic ecosystems in central Portugal, both for its role in the energy sector and for its environmental and recreational significance, faces a worrying situation following decades of the presence of potentially toxic cyanobacteria. Analyses carried out since 1989 reveal high and persistent levels of chlorophyll-a, as well as the recurring presence of toxin-producing species.<\/p>\n<p>In recent years, species such as <strong>Microcystis aeruginosa, Aphanizomenon flos-aquae and Anabaena flos-aquae have been detected<\/strong> during the summer and autumn months, coinciding with the conditions most favourable for their proliferation. Some episodes far exceeded the risk reference values established by the WHO, and the most recent studies confirm that some strains present in the reservoir contain genes associated with the production of microcystins.<\/p>\n<p>The increase in nutrients in the water, particularly phosphorus and nitrogen, linked to agricultural practices and urban discharges, is emerging as one of the most significant factors. Similarly, heavy rainfall, prolonged droughts and rising temperatures are creating conditions that encourage repeated cycles of proliferation.<\/p>\n<p>The ecological and social consequences are already being felt. In 2024, swimming was discouraged at several river beaches, <strong>and experts warn that the situation could worsen unless strategies are put in place for continuous monitoring and reducing pollutant inputs.<\/strong><\/p>\n<p>The Aguieira reservoir has become a clear example of how human pressure and climate change are reshaping the functioning of Portugal\u2019s aquatic ecosystems and highlights the urgency of moving towards more sustainable models of water management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Aguieira reservoir, one of the most important aquatic ecosystems in central Portugal, both for its role in the energy sector and for its environmental and recreational significance, faces a worrying situation following decades of the presence of potentially toxic cyanobacteria. Analyses carried out since 1989 reveal high and persistent levels of chlorophyll-a, as well [&hellip;]<\/p>\n","protected":false},"author":6548,"featured_media":64273,"parent":0,"template":"","meta":{"_acf_changed":false,"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"class_list":["post-64274","noticia-proyecto","type-noticia-proyecto","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe\" \/>\n<meta property=\"og:description\" content=\"The Aguieira reservoir, one of the most important aquatic ecosystems in central Portugal, both for its role in the energy sector and for its environmental and recreational significance, faces a worrying situation following decades of the presence of potentially toxic cyanobacteria. Analyses carried out since 1989 reveal high and persistent levels of chlorophyll-a, as well [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/\" \/>\n<meta property=\"og:site_name\" content=\"Interreg Sudoe\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/interregsudoe\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-23T10:26:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@Sudoe5\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/\",\"url\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/\",\"name\":\"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe\",\"isPartOf\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg\",\"datePublished\":\"2026-04-23T10:17:52+00:00\",\"dateModified\":\"2026-04-23T10:26:41+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage\",\"url\":\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg\",\"contentUrl\":\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg\",\"width\":1600,\"height\":900,\"caption\":\"Albufeira de Aguieira\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/interreg-sudoe.eu\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#website\",\"url\":\"https:\/\/interreg-sudoe.eu\/en\/\",\"name\":\"Interreg Sudoe\",\"description\":\"Interreg Sudoe\",\"publisher\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#organization\"},\"alternateName\":\"Interreg Sudoe\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/interreg-sudoe.eu\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#organization\",\"name\":\"Interreg Sudoe\",\"alternateName\":\"Interreg Sudoe\",\"url\":\"https:\/\/interreg-sudoe.eu\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2024\/03\/logo-interreg.png\",\"contentUrl\":\"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2024\/03\/logo-interreg.png\",\"width\":1200,\"height\":675,\"caption\":\"Interreg Sudoe\"},\"image\":{\"@id\":\"https:\/\/interreg-sudoe.eu\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/interregsudoe\",\"https:\/\/x.com\/Sudoe5\",\"https:\/\/www.youtube.com\/channel\/UCeGx2edoB32beRc9dbKA2vw\",\"https:\/\/www.linkedin.com\/company\/interreg-sudoe-programme\/\",\"https:\/\/www.flickr.com\/photos\/148704685@N06\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/","og_locale":"en_US","og_type":"article","og_title":"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe","og_description":"The Aguieira reservoir, one of the most important aquatic ecosystems in central Portugal, both for its role in the energy sector and for its environmental and recreational significance, faces a worrying situation following decades of the presence of potentially toxic cyanobacteria. Analyses carried out since 1989 reveal high and persistent levels of chlorophyll-a, as well [&hellip;]","og_url":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/","og_site_name":"Interreg Sudoe","article_publisher":"https:\/\/www.facebook.com\/interregsudoe","article_modified_time":"2026-04-23T10:26:41+00:00","og_image":[{"width":1600,"height":900,"url":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@Sudoe5","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/","url":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/","name":"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk - Interreg Sudoe","isPartOf":{"@id":"https:\/\/interreg-sudoe.eu\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage"},"image":{"@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage"},"thumbnailUrl":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg","datePublished":"2026-04-23T10:17:52+00:00","dateModified":"2026-04-23T10:26:41+00:00","breadcrumb":{"@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#primaryimage","url":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg","contentUrl":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2026\/04\/Foto-embalse-Aguieira.jpg","width":1600,"height":900,"caption":"Albufeira de Aguieira"},{"@type":"BreadcrumbList","@id":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/aguieira-advierte-de-un-aumento-constante-de-las-cianobacterias-toxicas-y-de-un-riesgo-ecologico-cada-vez-mayor\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/interreg-sudoe.eu\/en\/"},{"@type":"ListItem","position":2,"name":"Aguieira warns of a steady increase in toxic cyanobacteria and a growing ecological risk"}]},{"@type":"WebSite","@id":"https:\/\/interreg-sudoe.eu\/en\/#website","url":"https:\/\/interreg-sudoe.eu\/en\/","name":"Interreg Sudoe","description":"Interreg Sudoe","publisher":{"@id":"https:\/\/interreg-sudoe.eu\/en\/#organization"},"alternateName":"Interreg Sudoe","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/interreg-sudoe.eu\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/interreg-sudoe.eu\/en\/#organization","name":"Interreg Sudoe","alternateName":"Interreg Sudoe","url":"https:\/\/interreg-sudoe.eu\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/interreg-sudoe.eu\/en\/#\/schema\/logo\/image\/","url":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2024\/03\/logo-interreg.png","contentUrl":"https:\/\/interreg-sudoe.eu\/wp-content\/uploads\/2024\/03\/logo-interreg.png","width":1200,"height":675,"caption":"Interreg Sudoe"},"image":{"@id":"https:\/\/interreg-sudoe.eu\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/interregsudoe","https:\/\/x.com\/Sudoe5","https:\/\/www.youtube.com\/channel\/UCeGx2edoB32beRc9dbKA2vw","https:\/\/www.linkedin.com\/company\/interreg-sudoe-programme\/","https:\/\/www.flickr.com\/photos\/148704685@N06\/"]}]}},"_links":{"self":[{"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/noticia-proyecto\/64274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/noticia-proyecto"}],"about":[{"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/types\/noticia-proyecto"}],"author":[{"embeddable":true,"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/users\/6548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/media\/64273"}],"wp:attachment":[{"href":"https:\/\/interreg-sudoe.eu\/en\/wp-json\/wp\/v2\/media?parent=64274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}