{"id":90277,"date":"2025-06-05T21:14:23","date_gmt":"2025-06-06T02:14:23","guid":{"rendered":"https:\/\/thecitizenfortheworld.com\/?p=90277"},"modified":"2025-06-05T21:14:23","modified_gmt":"2025-06-06T02:14:23","slug":"por-que-los-oceanos-se-estan-oscureciendo-y-las-consecuencias-que-esto-puede-tener-para-animales-y-humanos","status":"publish","type":"post","link":"https:\/\/thecitizenfortheworld.com\/?p=90277","title":{"rendered":"Por qu\u00e9 los oc\u00e9anos se est\u00e1n oscureciendo (y las consecuencias que esto puede tener para animales y humanos)"},"content":{"rendered":"<div class=\"bbc-1151pbn ebmt73l0\" dir=\"ltr\">\n<h1 id=\"content\" class=\"article-heading bbc-14gqcmb e1p3vdyi0\" tabindex=\"-1\"><\/h1>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-j1srjl\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/69a0\/live\/5491e5c0-3d49-11f0-af00-f94ff1cabcc0.jpg.webp 800w\" alt=\"luz en el oc\u00e9ano \" width=\"2335\" height=\"1284\" \/><\/div>\n<\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\"><b>M\u00e1s de una quinta parte del oc\u00e9ano global se ha oscurecido en las \u00faltimas dos d\u00e9cadas reduciendo las zonas de luz que son vitales para la vida en el mar, seg\u00fan una investigaci\u00f3n de la Universidad de Plymouth, Inglaterra.<\/b><\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El proceso, conocido como &#8220;oscurecimiento oce\u00e1nico&#8221;, ocurre cuando los cambios en el nivel superior del oc\u00e9ano reducen la profundidad a la que puede viajar la luz solar.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El estudio, publicado en Global Change Biology, es la primera evaluaci\u00f3n a escala global de los cambios a largo plazo en la llamada zona f\u00f3tica del oc\u00e9ano, la capa superior iluminada por el sol que sustenta m\u00e1s del 90% de la vida marina y mantiene procesos planetarios clave como la producci\u00f3n de ox\u00edgeno y el ciclo del carbono.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">La investigaci\u00f3n revel\u00f3 que el 21% del oc\u00e9ano global -un \u00e1rea de m\u00e1s de 75 millones de km2\u2013 se oscureci\u00f3 entre 2003 y 2022.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Se cree que las razones del oscurecimiento oce\u00e1nico se deben a factores como cambios en la din\u00e1mica de la floraci\u00f3n de algas, variaciones en la temperatura superficial del mar y la luz artificial, seg\u00fan los investigadores.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El estudio revel\u00f3 que m\u00e1s del 9% del oc\u00e9ano \u2014un \u00e1rea de tama\u00f1o similar a \u00c1frica\u2014 experiment\u00f3 una reducci\u00f3n de luz de m\u00e1s de 50m.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Un 2,6% adicional del oc\u00e9ano experiment\u00f3 una reducci\u00f3n de m\u00e1s de 100m, indic\u00f3.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;El oc\u00e9ano es mucho m\u00e1s din\u00e1mico de lo que se suele creer&#8221;, explic\u00f3 el profesor Tim Smyth, jefe de Ciencias de Biogeoqu\u00edmica Marina y Observaciones del Laboratorio Marino de Plymouth.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Por ejemplo, sabemos que los niveles de luz en la columna de agua var\u00edan enormemente a lo largo de un per\u00edodo de 24 horas \u2014con el cambio entre la noche y el d\u00eda\u2014, y los animales cuyo comportamiento se ve directamente influenciado por la luz son mucho m\u00e1s sensibles a sus procesos y cambios &#8220;, agreg\u00f3.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-18ywsw9\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/e7b4\/live\/d5b1c670-3d49-11f0-9672-b5f8c6868c1c.jpg.webp 800w\" alt=\"luz en el oc\u00e9ano\" width=\"2105\" height=\"1184\" \/><\/p>\n<p class=\"bbc-by8ykd\" role=\"text\"><span class=\"bbc-m04vo2\">Fuente de la imagen, <\/span><span lang=\"en-GB\">Getty Images<\/span><\/p>\n<\/div><figcaption class=\"bbc-15f1ujd\" dir=\"ltr\"><span role=\"text\"><span class=\"bbc-m04vo2\">Pie de foto, <\/span><span data-testid=\"caption-paragraph\">La investigaci\u00f3n revel\u00f3 que el 21% del oc\u00e9ano global -un \u00e1rea de m\u00e1s de 75 millones de km2\u2013 se oscureci\u00f3 entre 2003 y 2022.<\/span><\/span><\/figcaption><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Las causas del oscurecimiento del oc\u00e9ano var\u00edan seg\u00fan la regi\u00f3n, dicen los investigadores.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">En aguas costeras, el aumento de las precipitaciones, la escorrent\u00eda agr\u00edcola y la carga de sedimentos son causas probables, mientras que en mar abierto, los cambios en la din\u00e1mica de la floraci\u00f3n de algas y el aumento de la temperatura superficial del mar est\u00e1n reduciendo la penetraci\u00f3n de la luz.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<h2 id=\"Cambios-fundamentales\" class=\"bbc-1lgzob2 eglt09e0\" tabindex=\"-1\">Cambios fundamentales<\/h2>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Aunque las implicaciones precisas de los cambios no est\u00e1n del todo claras, los investigadores afirmaron que un gran n\u00famero de especies marinas y servicios ecosist\u00e9micos del planeta podr\u00edan verse afectados.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El doctor Thomas Davies, profesor asociado de Conservaci\u00f3n Marina en la universidad, y principal autor del estudio, afirm\u00f3: &#8220;Se han realizado investigaciones que demuestran c\u00f3mo la superficie del oc\u00e9ano ha cambiado de color en los \u00faltimos 20 a\u00f1os, posiblemente como resultado de cambios en las comunidades de plancton&#8221;.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Pero nuestros resultados proporcionan evidencia de que dichos cambios causan un oscurecimiento generalizado que reduce la cantidad de oc\u00e9ano disponible para los animales que dependen del Sol y la Luna para su supervivencia y reproducci\u00f3n&#8221;.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Las disminuciones m\u00e1s pronunciadas de la zona f\u00f3tica se observaron en la Corriente del Golfo, las regiones polares y mares costeros cerrados como el B\u00e1ltico, regiones que ya experimentan cambios r\u00e1pidos debido a la alteraci\u00f3n clim\u00e1tica.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El doctor Davies afirm\u00f3 que el oscurecimiento del oc\u00e9ano podr\u00eda afectar el aire que respiramos, los peces que consumimos y la capacidad del mundo para combatir el cambio clim\u00e1tico.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Nuestros hallazgos son motivo de verdadera preocupaci\u00f3n&#8221;, declar\u00f3.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El profesor Tim Smyth se\u00f1al\u00f3 que algunos animales marinos que necesitan luz podr\u00edan llegar m\u00e1s cerca de la superficie como resultado de los cambios.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Si la zona f\u00f3tica se reduce en unos 50m en grandes extensiones del oc\u00e9ano, los animales que necesitan luz se ver\u00e1n obligados a acercarse a la superficie, donde tendr\u00e1n que competir por el alimento y otros recursos que necesitan&#8221;, afirm\u00f3.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Esto podr\u00eda provocar cambios fundamentales en todo el ecosistema marino&#8221;.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\"><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Con informaci\u00f3n de la bbc.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>M\u00e1s de una quinta parte del oc\u00e9ano global se ha oscurecido en las \u00faltimas dos d\u00e9cadas reduciendo las zonas de luz que son vitales para la vida en el mar, seg\u00fan una investigaci\u00f3n de la Universidad de Plymouth, Inglaterra. El proceso, conocido como &#8220;oscurecimiento oce\u00e1nico&#8221;, ocurre cuando los cambios en el nivel superior del oc\u00e9ano [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":90278,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false},"categories":[5],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Por qu\u00e9 los oc\u00e9anos se est\u00e1n oscureciendo (y las consecuencias que esto puede tener para animales y humanos) - The citizen for the world<\/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:\/\/thecitizenfortheworld.com\/?p=90277\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Por qu\u00e9 los oc\u00e9anos se est\u00e1n oscureciendo (y las consecuencias que esto puede tener para animales y humanos) - The citizen for the world\" \/>\n<meta property=\"og:description\" content=\"M\u00e1s de una quinta parte del oc\u00e9ano global se ha oscurecido en las \u00faltimas dos d\u00e9cadas reduciendo las zonas de luz que son vitales para la vida en el mar, seg\u00fan una investigaci\u00f3n de la Universidad de Plymouth, Inglaterra. 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