{"id":24319,"date":"2024-01-30T08:10:15","date_gmt":"2024-01-30T08:10:15","guid":{"rendered":"https:\/\/edukemy.com\/blog\/?p=24319"},"modified":"2024-01-30T08:10:17","modified_gmt":"2024-01-30T08:10:17","slug":"when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022","status":"publish","type":"post","link":"https:\/\/edukemy.com\/blog\/when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022\/","title":{"rendered":"When corals are affected by stress causes them to turn completely white. Explain the reasons for such an occurrence &#8211; UPSC Geography Optional Mains &#8211; 2022"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/edukemy.com\/upsc\/upsc-prelims-support-program-with-test-series?type=classroom\" target=\"_blank\" rel=\"noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"300\" src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/10\/GS-Foundation-Course-for-UPSC-1280-x-300-px-1-1024x300.png\" alt=\"\" class=\"wp-image-46623\"\/><\/a><\/figure>\n\n\n\n<p>When corals face environmental stress, a remarkable phenomenon known as coral bleaching occurs, causing these vibrant marine organisms to undergo a visually striking transformation\u2014turning completely white. This occurrence is a consequence of various stressors that disrupt the delicate balance within coral ecosystems. Corals, which form intricate symbiotic relationships with photosynthetic algae called zooxanthellae, depend on optimal environmental conditions for their survival. Factors such as elevated sea temperatures, pollution, and changes in water chemistry can induce stress, prompting the expulsion of the symbiotic algae from the coral tissues. As a result, the loss of these colorful algae exposes the underlying calcium carbonate skeleton, leaving the corals visibly bleached. Understanding the reasons behind this phenomenon is crucial for addressing the threats to coral reefs and implementing conservation measures to protect these vital ecosystems.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-69ff4e6f7a065\" class=\"ez-toc-cssicon-toggle-label\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69ff4e6f7a065\"  \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/edukemy.com\/blog\/when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022\/#Answers\" title=\"Answers\">Answers<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/edukemy.com\/blog\/when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022\/#Various_reasons_behind_coral_bleaching_are_as_follows\" title=\"Various reasons behind coral bleaching are as follows:\">Various reasons behind coral bleaching are as follows:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/edukemy.com\/blog\/when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022\/#In_case_you_still_have_your_doubts_contact_us_on_9811333901\" title=\"In case you still have your doubts, contact us on 9811333901.&nbsp;\">In case you still have your doubts, contact us on 9811333901.&nbsp;<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/edukemy.com\/blog\/when-corals-are-affected-by-stress-causes-them-to-turn-completely-white-explain-the-reasons-for-such-an-occurrence-upsc-geography-optional-mains-2022\/#Visit_our_YouTube_Channel_%E2%80%93_here\" title=\"Visit our YouTube Channel &#8211;&nbsp;here\">Visit our YouTube Channel &#8211;&nbsp;here<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Answers\"><\/span>Answers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Corals, also known as the evergreen forests of the ocean, occupy less than 1% of the ocean floor but support approximately 25% of the marine biodiversity. Under stress they expel the symbiotic algae called zooxanthellae that live within their tissues and turn completely white this phenomenon is called coral bleaching.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Various_reasons_behind_coral_bleaching_are_as_follows\"><\/span>Various reasons behind coral bleaching are as follows:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>High Ocean Water Temperature and Marine Heat Wave<ul><li>High ocean temperatures, caused by climate change, primary trigger for coral bleaching; even a rise of 1 degree Celsius can cause coral polyps to expel the heat-sensitive zooxanthellae.<\/li><\/ul><\/li><li>Pollution and Runoff<ul><li>Pollutants, including agricultural runoff and sewage, can disrupt the balance of nutrients and microbes in the water, affecting coral health.<\/li><\/ul><\/li><li>Ocean Acidification<ul><li>Increasing carbon dioxide (CO2) levels in the atmosphere due to global warming lead to ocean acidification. More acidic waters can harm coral calcification and weaken coral skeletons, making them more susceptible to bleaching.<\/li><\/ul><\/li><\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"971\" height=\"113\" data-src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133652.png\" alt=\"\" class=\"wp-image-24320 lazyload\" data-srcset=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133652.png 971w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133652-585x68.png 585w\" data-sizes=\"(max-width: 971px) 100vw, 971px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 971px; --smush-placeholder-aspect-ratio: 971\/113;\" \/><\/figure><\/div>\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/edukemy.com\/upsc\/upsc-essay?utm_source=Blog&amp;utm_medium=Banner&amp;utm_campaign=Essay\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1280\" height=\"300\" data-src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/10.png\" alt=\"\" class=\"wp-image-42412 lazyload\" data-srcset=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/10.png 1280w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/10-1170x274.png 1170w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/10-585x137.png 585w\" data-sizes=\"(max-width: 1280px) 100vw, 1280px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1280px; --smush-placeholder-aspect-ratio: 1280\/300;\" \/><\/a><figcaption><a href=\"https:\/\/edukemy.com\/upsc\/upsc-essay?utm_source=Blog&amp;utm_medium=Link&amp;utm_campaign=Essay\">UPSC Essay Course<\/a><\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Extreme Weather Events<ul><li>Storms and hurricanes can physically damage corals, disrupt their symbiotic relationships, and expose them to stressors that lead to bleaching.<\/li><\/ul><\/li><li>Disease Outbreaks<ul><li>Outbreaks of coral diseases, often linked to environmental stressors and changes in water quality, can weaken corals and make them more prone to bleaching. Reducing carbon emissions, protecting marine ecosystems, and promoting sustainable fishing and tourism practices are essential steps in mitigating the stressors that lead to coral bleaching and in helping these fragile ecosystems recover.<\/li><\/ul><\/li><\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"922\" height=\"325\" data-src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133819.png\" alt=\"Coral Bleaching\" class=\"wp-image-24321 lazyload\" data-srcset=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133819.png 922w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/01\/Screenshot-2024-01-30-133819-585x206.png 585w\" data-sizes=\"(max-width: 922px) 100vw, 922px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 922px; --smush-placeholder-aspect-ratio: 922\/325;\" \/><figcaption>Coral Bleaching<\/figcaption><\/figure><\/div>\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/edukemy.com\/upsc\/upsc-essay?utm_source=Blog&amp;utm_medium=Banner&amp;utm_campaign=Essay\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" data-src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/UPSC-Essay-Course-1280\u00d7300-1-3.svg\" alt=\"\" class=\"wp-image-42688 lazyload\" width=\"781\" height=\"182\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 781px; --smush-placeholder-aspect-ratio: 781\/182;\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"In_case_you_still_have_your_doubts_contact_us_on_9811333901\"><\/span><strong>In case you still have your doubts, contact us on 9811333901.<\/strong>&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>For UPSC Prelims Resources,&nbsp;<a href=\"https:\/\/edukemy.com\/upsc-cse-prelims-resource-centre\" target=\"_blank\" rel=\"noreferrer noopener\">Click here<\/a><\/p>\n\n\n\n<p>For Daily Updates and Study Material:<\/p>\n\n\n\n<p>Join our Telegram Channel &#8211;&nbsp;<a href=\"https:\/\/t.me\/WithEdukemy4IAS\" target=\"_blank\" rel=\"noreferrer noopener\">Edukemy for IAS<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>1. 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Mains Answer Writing Practice &#8211;&nbsp;<a href=\"https:\/\/bit.ly\/3mZuVxl\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Visit_our_YouTube_Channel_%E2%80%93_here\"><\/span>Visit our YouTube Channel &#8211;&nbsp;<a href=\"https:\/\/www.youtube.com\/@ShabbirsEduKemyforIAS\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a><span class=\"ez-toc-section-end\"><\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>When corals face environmental stress, a remarkable phenomenon known as coral bleaching occurs, causing these vibrant marine organisms to undergo a visually striking transformation\u2014turning completely white.<\/p>\n","protected":false},"author":17,"featured_media":24322,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1557],"tags":[1596,143,142,232,145,140],"class_list":["post-24319","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-upsc-geography-optional-mains-solved-paper-2022","tag-corals","tag-geography_optional","tag-previous_year_questions","tag-upsc","tag-upsc-mains-question-paper","tag-upsc_preparation_strategy"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/posts\/24319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/comments?post=24319"}],"version-history":[{"count":1,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/posts\/24319\/revisions"}],"predecessor-version":[{"id":24323,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/posts\/24319\/revisions\/24323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/media\/24322"}],"wp:attachment":[{"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/media?parent=24319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/categories?post=24319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edukemy.com\/blog\/wp-json\/wp\/v2\/tags?post=24319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}