{"id":728843,"date":"2026-08-06T01:26:13","date_gmt":"2026-08-06T01:26:13","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/728843\/"},"modified":"2026-08-06T01:26:13","modified_gmt":"2026-08-06T01:26:13","slug":"corals-spin-tiny-vortices-to-get-oxygen-but-not-if-its-too-hot","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/728843\/","title":{"rendered":"Corals Spin Tiny Vortices to Get Oxygen, but Not if It\u2019s Too Hot"},"content":{"rendered":"<p>The cilia on each polyp, they found, are arranged in hexagonal units that keep ciliary movement streamlined, which helps explain how cilia can coordinate their movement to produce predictable swirls. \u201cIt demonstrates that coral skeletal architecture and living tissue are functionally integrated,\u201d Pacherres said.<\/p>\n<p>Combined, the studies recontextualize how ciliary movement, previously overlooked, gives corals some stability and buffers them against environmental change, he said.<\/p>\n<p>The relationship between cilia and bleaching remains ambiguous, said Alderdice, who was not involved in the studies. But testing cilia under bleaching conditions without heat \u2014 by using red light, for example, which can also trigger bleaching \u2014 would help answer this question.<\/p>\n<p>Playing Catch-Up\u00a0\u00a0<\/p>\n<p>Scientists knew from the 2014 work that cilia help corals self-ventilate when water flow is low, said <a href=\"https:\/\/www.kaust.edu.sa\/en\/study\/faculty\/david-suggett\" rel=\"nofollow noopener\" target=\"_blank\">David Suggett<\/a>, a marine biologist at King Abdullah University of Science and Technology who wasn\u2019t involved in the research. \u201cBut until this point, we had been focusing on molecular and metabolic machinery\u201d to understand how corals evolved to deal with low-oxygen conditions, he said. \u201cWe hadn\u2019t really appreciated that there are these behavioral-physiological mechanisms at play.\u201d<\/p>\n<p>For Suggett, the research raises a critical question: What does this say about how corals will deal with future climates?<\/p>\n<p>Sometimes, corals of a single reef don\u2019t bleach evenly, with some individuals dying off while their neighbors persist. In new research led by Suggett\u2019s colleague Tadd Truscott, marine biologists are finding that these patchy bleaching patterns are correlated with areas of reduced water flow \u2014 areas therefore receiving less oxygen.<\/p>\n<p>Next, K\u00fchl and Pacherres\u2019 team wants to test corals under different conditions \u2014 especially under normal light-dark cycles \u2014 and to better understand the mechanism driving ciliary beating. Is it a molecular process that activates their movement? The physics of warmer seawater? A bit of both, or something else?<\/p>\n<p>It\u2019s only in the past decade that scientists have realized the role of deoxygenation in coral health, Suggett said. Ocean acidification took center stage as the primary concern for corals in the early 2000s. In hindsight, deoxygenation was a much bigger issue, he said. The new research suggests that deoxygenation, not just bleaching, is a fatal threat to corals resulting from a hotter climate.<\/p>\n<p>\u201cWe\u2019re playing massive catch-up,\u201d Suggett said. \u201cThe amount of information we\u2019re gathering quickly is demonstrating just what a problem for corals it is \u2014 so much so that we\u2019re starting to really revisit long-standing paradigms of the role of other environmental factors, like temperature and light, where in fact, it could be oxygen that\u2019s been the smoking gun all along.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"The cilia on each polyp, they found, are arranged in hexagonal units that keep ciliary movement streamlined, which&hellip;\n","protected":false},"author":2,"featured_media":728844,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[59,90,56,54,55],"class_list":["post-728843","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-gb","tag-science","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/728843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=728843"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/728843\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/728844"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=728843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=728843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=728843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}