{"id":4847,"date":"2022-02-18T18:45:32","date_gmt":"2022-02-18T18:45:32","guid":{"rendered":"https:\/\/whatsappcancun.com\/?p=4847"},"modified":"2022-02-18T18:45:32","modified_gmt":"2022-02-18T18:45:32","slug":"hallan-microplasticos-de-origen-humano-en-oceano-austral-de-la-antartida","status":"publish","type":"post","link":"https:\/\/whatsappmexico.com\/?p=4847","title":{"rendered":"Hallan micropl\u00e1sticos de origen humano en oc\u00e9ano austral de la Ant\u00e1rtida"},"content":{"rendered":"

Cient\u00edficos alertan que los micropl\u00e1sticos podr\u00edan afectar al ecosistema ant\u00e1rtico y estiman un aumento ante la creciente en el turismo.<\/p>\n

Los micropl\u00e1sticos de origen humano han llegado al oc\u00e9ano austral que rodea la Ant\u00e1rtida, seg\u00fan un estudio conjunto del Instituto de Ciencias del Mar (ICM-CSIC) de Barcelona (Espa\u00f1a) y la Universidad Nacional de C\u00f3rdoba (Argentina) que apunta que estos contaminantes podr\u00edan haber llegado all\u00ed a trav\u00e9s del vertido de aguas de las lavadoras de las bases ant\u00e1rticas y de las embarcaciones tur\u00edsticas que visitan la zona.<\/p>\n

Los\u00a0bi\u00f3logos del ICM-CSIC han alertado de que la presencia de estas microfibras de origen antropog\u00e9nico podr\u00eda afectar a todo el ecosistema ant\u00e1rtico<\/strong>, uno de los enclaves m\u00e1s remotos de la Tierra.<\/p>\n

El estudio, que publica la revista \u201cMarine Pollution Bulletin\u201d, ha confirmado que el flujo de part\u00edculas que sedimenta en la costa ant\u00e1rtica contiene microfibras de origen antropog\u00e9nico.<\/p>\n

\u201cEl estudio constata que existe un flujo de microfibras de origen antropog\u00e9nico en la columna de agua de la costa ant\u00e1rtica, y que este flujo var\u00eda estacionalmente, siendo mayor cuando las bases ant\u00e1rticas est\u00e1n m\u00e1s llenas y hay m\u00e1s visitas de turistas, es decir, en verano\u201d, ha explicado en un comunicado el investigador de la Universidad Nacional de C\u00f3rdoba (Argentina) Gast\u00f3n Alurralde.<\/p>\n

Por su parte, el investigador del ICM-CSIC Enrique Isla, coautor del estudio, ha advertido de que \u201cla presencia de estas microfibras podr\u00eda afectar a todo el ecosistema ant\u00e1rtico en su conjunto, ya que los micropl\u00e1sticos son ingeridos por el zooplancton, del que se alimentan animales m\u00e1s grandes como los ping\u00fcinos, con lo que se van acumulando a lo largo de la cadena tr\u00f3fica marina\u201d.<\/p>\n

Micropl\u00e1sticos en aguas de la Ant\u00e1rtida y el Polo Sur<\/h2>\n

Adem\u00e1s, seg\u00fan el investigador, \u201clos micropl\u00e1sticos contienen aditivos que le confieren al pl\u00e1stico diferentes propiedades como el color y la resistencia y que tambi\u00e9n podr\u00edan tener efectos adversos para la biota ant\u00e1rtica\u201d.<\/p>\n

Para hacer el estudio, los bi\u00f3logos marinos analizaron, primero con una lupa y luego qu\u00edmicamente, varias muestras<\/strong>\u00a0de part\u00edculas en sedimentaci\u00f3n capturadas con trampas de sedimento entre los a\u00f1os 2012 y 2015 a 25 metros de profundidad en la Caleta Potter de la Isla Rey Jorge, tambi\u00e9n conocida como Isla 25 de Mayo, la mayor de las islas Shetland del Sur, situadas frente a la costa oeste de la Ant\u00e1rtida.<\/p>\n

Hace dos a\u00f1os, otro estudio publicado en la misma revista revel\u00f3 la presencia de microfibras de pl\u00e1stico en el hielo marino ant\u00e1rtico, si bien esta es la primera vez que se analiza el flujo de microfibras de origen antropog\u00e9nico en la columna de agua ant\u00e1rtica.<\/p>\n

Los cient\u00edficos auguran que habr\u00e1 un incremento de microfibras de pl\u00e1stico en la Ant\u00e1rtida por el aumento de turistas en la zona y conf\u00edan en que los resultados de este trabajo sirva para implantar una regulaci\u00f3n que controle este tipo de contaminaci\u00f3n.<\/p>\n

\u201cNuestro estudio abre un campo de investigaci\u00f3n y una l\u00ednea de inter\u00e9s sociopol\u00edtico sobre la conservaci\u00f3n del ambiente ant\u00e1rtico. Adem\u00e1s, aporta informaci\u00f3n para establecer nuevas normas de control de emisiones de agua dom\u00e9stica en ambientes ant\u00e1rticos y para la estimaci\u00f3n del impacto de los micropl\u00e1sticos sobre el ambiente marino a nivel global\u201d, ha argumentado Isla.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cient\u00edficos alertan que los micropl\u00e1sticos podr\u00edan afectar al ecosistema ant\u00e1rtico y estiman un aumento ante la creciente en el turismo. Los micropl\u00e1sticos de origen humano han llegado al oc\u00e9ano austral que rodea la Ant\u00e1rtida, seg\u00fan un estudio conjunto del Instituto…<\/p>\n","protected":false},"author":1,"featured_media":4849,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5,13],"tags":[],"class_list":["post-4847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espectaculos","category-internacional","category-tecnologia"],"yoast_head":"\nHallan micropl\u00e1sticos de origen humano en oc\u00e9ano austral de la Ant\u00e1rtida -<\/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:\/\/whatsappmexico.com\/?p=4847\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hallan micropl\u00e1sticos de origen humano en oc\u00e9ano austral de la Ant\u00e1rtida -\" \/>\n<meta property=\"og:description\" content=\"Cient\u00edficos alertan que los micropl\u00e1sticos podr\u00edan afectar al ecosistema ant\u00e1rtico y estiman un aumento ante la creciente en el turismo. 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