{"id":15040,"date":"2025-01-16T10:00:40","date_gmt":"2025-01-16T09:00:40","guid":{"rendered":"https:\/\/www.ceab.csic.es\/?p=15040"},"modified":"2025-01-15T11:48:06","modified_gmt":"2025-01-15T10:48:06","slug":"detectada-una-nova-especie-exotica-amb-potencial-invasor","status":"publish","type":"post","link":"https:\/\/www.ceab.csic.es\/en\/detectada-una-nova-especie-exotica-amb-potencial-invasor\/","title":{"rendered":"New exotic species with invasive potential detected"},"content":{"rendered":"

A study led by the CEAB-CSIC has identified individuals of the African-origin tunicate Pyura herdmani<\/em> in the waters of Galicia (. This is a species of ascidian capable of forming large aggregations, displacing native species, and altering marine ecosystems.<\/h4>\n

Researchers from the Centre d\u2019Estudis Avan\u00e7ats de Blanes (CEAB-CSIC), the Centro de Investigaci\u00f3n Mari\u00f1a da Universidade de Vigo, the Grupo de Estudo do Medio Mari\u00f1o (GEMM), the Instituto Espa\u00f1ol de Oceanograf\u00eda (IEO-CSIC), and the University of Johannesburg (South Africa) have documented the presence of a new exotic species with invasive potential in the waters of Galicia (in the north-west of the Iberian Peninsula). The species in question is Pyura herdmani<\/em>, a solitary tunicate of large dimensions originally from Africa.<\/p>\n

The study, published in the journal Biological Invasions<\/em><\/a><\/strong>, was possible thanks to the collaboration of the Hydronauta diving club, which observed and collected the first individuals of this species between 2015 and 2019 in the waters of the Ribeira marina, in the Arousa estuary. Subsequently, in 2022, the scientific team conducted a campaign throughout the estuary, as well as in the Vigo estuary, focusing particularly on marina and recreational port infrastructures where these ascidians tend to attach.<\/p>\n

\"ascidi-pyura-galicia\"
Imatge de l’ascidi. Individu disseccionat<\/figcaption><\/figure>\n

Pyura herdmani<\/em> is a species that can form large aggregations, displacing native species and altering marine ecosystems. Furthermore, similar species have caused economic problems, such as the excessive colonization of mussel farms, which are vital in the Arousa estuary.<\/p>\n

Based on the morphological and genetic analyses carried out during the research, it has been concluded that the specimens found in Galicia originated from the northern coasts of Africa. Given the limited dispersal capacity of the early life stages of such species, the introduction of these specimens can only be explained by transport mediated by human activities. Specifically, in this case, it is believed that the most likely introduction pathway could be associated with fishing fleets operating in the Canary-Saharan Bank that regularly dock in Galicia.<\/p>\n

\u201cResearch aimed at understanding the characteristics of the artificial introduction of non-native species, as well as their early detection, is crucial to determining whether these species will become invasive, potentially causing severe economic and ecological impacts<\/em>,\u201d says Marc Rius, researcher at the Centre d\u2019Estudis Avan\u00e7ats de Blanes (CEAB-CSIC) and lead author of the scientific article. \u201cThis information provides vital insights and guidance for the immediate management of the issue, enabling efforts to be more effectively directed towards eradicating or at least containing the spread of these species,<\/em>\u201d explain Xavier Turon and Elsa V\u00e1zquez, researchers from CEAB-CSIC and CIM respectively, and co-authors of this work.<\/p>\n

Bruno Alm\u00f3n, co-author of the article and researcher at the Centro Oceanogr\u00e1fico de Vigo of the IEO, emphasizes the importance of citizen collaboration: \u201cIt is a highly valuable source of information in this type of study, especially from groups that live in close contact with the sea, as it allows for the swift detection of changes occurring in the ecosystems they frequent<\/em>.\u201d The team notes that it was members of a local diving club who first observed and collected specimens of the ascidian.<\/p>\n

Ref. article<\/strong>: Rius, M., Turon, X., Mor\u00e1n, P. et al.<\/em> 2024. A morphogenetic characterisation of a potentially dominant African marine species in Europe<\/em>. Biol Invasions<\/em> 26<\/strong>, 2811-2818 https:\/\/doi.org\/10.1007\/s10530-024-03354-x<\/a><\/h6>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

A study led by the CEAB-CSIC has identified individuals of the African-origin tunicate Pyura herdmani in the waters of Galicia (. This is a species of ascidian capable of forming large aggregations, displacing native species, and altering marine ecosystems. Researchers from the Centre d\u2019Estudis Avan\u00e7ats de Blanes (CEAB-CSIC), the Centro de Investigaci\u00f3n Mari\u00f1a da Universidade… New exotic species with invasive potential detected<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":15034,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[468],"tags":[1486,1625,1100,1522,1114,1595,1512,1099,1166,1554,1521],"class_list":["post-15040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured","tag-africa-en","tag-atlantic-en","tag-climate-change","tag-fauna-en","tag-global-change","tag-human-impacts","tag-identificacio-especies","tag-invasive-species","tag-marine-biology","tag-marine-ecology","tag-species-identification"],"acf":[],"yoast_head":"\nNew exotic species with invasive potential detected | CEAB<\/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:\/\/www.ceab.csic.es\/en\/detectada-una-nova-especie-exotica-amb-potencial-invasor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New exotic species with invasive potential detected | CEAB\" \/>\n<meta property=\"og:description\" content=\"A study led by the CEAB-CSIC has identified individuals of the African-origin tunicate Pyura herdmani in the waters of Galicia (. 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