{"id":10191,"date":"2022-10-11T16:07:33","date_gmt":"2022-10-11T16:07:33","guid":{"rendered":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters"},"modified":"2022-10-11T16:24:27","modified_gmt":"2022-10-11T16:24:27","slug":"1-million-year-old-dna-found-in-antarctica-waters","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters","title":{"rendered":"1 Million-Year-Old DNA Found in Antarctica Waters"},"content":{"rendered":"

Africa-Press – Sierra-Leone. <\/strong><\/span>Sedimentary ancient DNA (sedaDNA) analysis is a technique that deciphers what organisms have lived in the ocean and when. Researchers claim that learning about the history of oceanic organisms can help us make predictions about the future of marine life in the face of climate change.<\/p>\n

Antarctica is one of the regions that\u2019s most vulnerable to climate change, which makes it a priority of study for scientists interested in polar marine ecosystems. A new study led by the University of Tasmania recently discovered the oldest marine DNA ever found in deep-sea sediments of the Scotia Sea\u2013which sits north of Antarctica.<\/p>\n

SedaDNA, or sedimentary ancient DNA, is found in many environments, including subarctic permafrost and terrestrial caves, where scientists have found material dating back up to 650,000 years. The study is evidence that sedaDNA techniques can help to reconstruct ecosystems across thousands of years, giving us better insight into the oceans\u2019 changing ecospheres.<\/p>\n

According to the study, which can be found in Nature Communications, the researchers discovered single-celled organisms called diotoms, which are creatures that roamed around 540,000 years ago, when the arctic was much warmer than it is now. The information gleaned points to diatom abundance in warmer periods around 14,500 years ago, which led to an increase in marine life activity across the entirety of the Antarctic region.<\/p>\n

The researchers feel that learning more about the past is \u201ca matter of urgency\u201d that may help us predict what will happen to marine ecosystems as the oceans warm once again.<\/p>\n

For More News And Analysis About Sierra-Leone<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Sierra-Leone. Sedimentary ancient DNA (sedaDNA) analysis is a technique that deciphers what organisms have lived in the ocean and when. Researchers claim that learning about the history of oceanic organisms can help us make predictions about the future of marine life in the face of climate change. Antarctica is one of the regions […]<\/p>\n","protected":false},"author":84,"featured_media":10190,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[291,293,292],"class_list":["post-10191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-africa-press","tag-africa-press-sierra-leone","tag-sierra-leone"],"yoast_head":"\n1 Million-Year-Old DNA Found in Antarctica Waters - Sierra Leone<\/title>\n<meta name=\"description\" content=\"Sedimentary ancient DNA (sedaDNA) analysis is a technique that deciphers what organisms have lived in the ocean and when ...\" \/>\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.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1 Million-Year-Old DNA Found in Antarctica Waters\" \/>\n<meta property=\"og:description\" content=\"Sedimentary ancient DNA (sedaDNA) analysis is a technique that deciphers what organisms have lived in the ocean and when ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\" \/>\n<meta property=\"og:site_name\" content=\"Sierra Leone\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AfricaPressTunisiaa\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-11T16:07:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-11T16:24:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/sierra-leone\/sites\/16\/2022\/10\/postQueueImg_22-6345989062ada.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1079\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditoren\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditoren\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"1 Million-Year-Old DNA Found in Antarctica Waters\",\"datePublished\":\"2022-10-11T16:07:33+00:00\",\"dateModified\":\"2022-10-11T16:24:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\"},\"wordCount\":267,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/sierra-leone\/sites\/16\/2022\/10\/postQueueImg_22-6345989062ada.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Sierra-Leone\",\"Sierra-Leone\"],\"articleSection\":[\"all news\",\"miscellaneous\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\",\"url\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/1-million-year-old-dna-found-in-antarctica-waters\",\"name\":\"1 Million-Year-Old DNA Found in Antarctica Waters - 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