{"id":29570,"date":"2024-02-24T04:55:13","date_gmt":"2024-02-24T04:55:13","guid":{"rendered":"https:\/\/edukemy.com\/blog\/?p=29570"},"modified":"2024-02-24T04:55:15","modified_gmt":"2024-02-24T04:55:15","slug":"coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes","status":"publish","type":"post","link":"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/","title":{"rendered":"Coral Reefs &#8211; Condition for Formation, Types, and Importance &#8211; UPSC World Geography Notes"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/edukemy.com\/upsc\/upsc-geography?utm_source=Blog&amp;utm_medium=Banner&amp;utm_campaign=Geography\" target=\"_blank\" rel=\"noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1280\" height=\"300\" src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/14.png\" alt=\"\" class=\"wp-image-42410\" srcset=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/14.png 1280w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/14-1170x274.png 1170w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/14-585x137.png 585w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/a><\/figure>\n\n\n\n<p><strong>Coral reefs <\/strong>represent vibrant underwater ecosystems, comprising the calcified skeletons of coral polyps, which are tiny marine invertebrates.\u00a0<\/p>\n\n\n\n<p>These colonies, constructed from calcium carbonate, rank among the most biologically diverse marine environments globally.\u00a0<\/p>\n\n\n\n<p>Essentially, coral reefs are formations formed by clusters of small living animals\u2014<strong>coral polyps<\/strong>\u2014that play a pivotal role in marine ecosystems by offering a habitat for various marine flora and fauna.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh7-us.googleusercontent.com\/epJAadNOJg0Kb2GPh_UvnlWnFYy0q-eYrZy3vYWJpvy9DcPPu9ufywd38uS_6WnWoMRazWgiFvkjM22emxTogUsONqf8katFGzTwSIlulXnm2JF834NP2IMJO-lKjOQGFPBNrjxzINATuAhBFzik2II\" alt=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a8ed05f041b7\" 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-6a8ed05f041b7\"  \/><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\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#IDEAL_CONDITIONS_FOR_CORAL_GROWTH\" >IDEAL CONDITIONS FOR CORAL GROWTH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#CLASSIFICATION_OF_CORAL_REEF\" >CLASSIFICATION OF CORAL REEF<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Fringing_Reefs_Shore_Reefs\" >Fringing Reefs (Shore Reefs)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Barrier_Reefs\" >Barrier Reefs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Patch_Reefs\" >Patch Reefs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Atoll_Reefs\" >Atoll Reefs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#IMPORTANCE_OF_CORAL_REEF\" >IMPORTANCE OF CORAL REEF<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Role_in_Ecosystem_Formation\" >Role in Ecosystem Formation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Coastal_Protection\" >Coastal Protection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Food_Resource\" >Food Resource<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Carbon_Sequestration\" >Carbon Sequestration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Medicinal_Importance\" >Medicinal Importance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Economic_Significance\" >Economic Significance<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Location_of_Coral_Reefs\" >Location of Coral Reefs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Absence_on_West_Coasts_of_Tropical_Continents\" >Absence on West Coasts of Tropical Continents<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Cold_Coastal_Currents\" >Cold Coastal Currents:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Impact_of_Cold_Currents\" >Impact of Cold Currents:<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#FAQs_%E2%80%93_Coral_Reefs_Formation_Types_and_Importance\" >FAQs &#8211; Coral Reefs: Formation, Types, and Importance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#1_What_are_coral_reefs_and_what_are_they_made_of\" >1. What are coral reefs, and what are they made of?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#2_What_are_the_key_conditions_required_for_the_formation_and_survival_of_coral_reefs\" >2. What are the key conditions required for the formation and survival of coral reefs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#3_Why_are_coral_reefs_absent_on_the_west_coast_of_tropical_continents\" >3. Why are coral reefs absent on the west coast of tropical continents?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#4_What_are_the_main_types_of_coral_reefs\" >4. What are the main types of coral reefs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#5_How_do_coral_reefs_contribute_to_the_formation_of_other_ecosystems\" >5. How do coral reefs contribute to the formation of other ecosystems?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#6_How_do_coral_reefs_protect_coastal_ecosystems_and_human_settlements\" >6. How do coral reefs protect coastal ecosystems and human settlements?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#7_Are_coral_reefs_important_for_food_resources\" >7. Are coral reefs important for food resources?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#8_What_is_the_role_of_coral_reefs_in_carbon_sequestration\" >8. What is the role of coral reefs in carbon sequestration?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#9_Are_there_any_potential_medicinal_uses_of_coral_organisms\" >9. Are there any potential medicinal uses of coral organisms?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#10_What_is_the_economic_significance_of_coral_reefs\" >10. What is the economic significance of coral reefs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#11_Where_are_coral_reefs_primarily_located\" >11. Where are coral reefs primarily located?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#12_Why_are_cold_coastal_currents_detrimental_to_coral_reefs\" >12. Why are cold coastal currents detrimental to coral reefs?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#In_case_you_still_have_your_doubts_contact_us_on_9811333901\" >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-32\" href=\"https:\/\/edukemy.com\/blog\/coral-reefs-condition-for-formation-types-and-importance-upsc-world-geography-notes\/#Visit_our_YouTube_Channel_%E2%80%93_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=\"IDEAL_CONDITIONS_FOR_CORAL_GROWTH\"><\/span><strong>IDEAL CONDITIONS FOR CORAL GROWTH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Coral reefs are delicate ecosystems with specific requirements for their growth and survival. <strong>Several key factors determine their presence and health<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Stable Climatic Conditions<\/strong>: Corals are highly sensitive to rapid environmental changes. They thrive in regions where the climate remains stable for extended periods. Sudden fluctuations in temperature or other conditions can harm them.<\/li><li><strong>Perpetually Warm Waters<\/strong>: Corals are predominantly found in tropical waters within the latitudes of approximately 30\u00b0N and 30\u00b0S. They prefer warm waters with narrow diurnal (daily) and annual temperature ranges, typically around 20\u00b0C.<\/li><li><strong>Shallow Water<\/strong>: Corals require a significant amount of sunlight to carry out photosynthesis, which is essential for their survival. They tend to grow optimally at depths ranging from 45 metres to 55 metres below the sea surface, where there is ample sunlight.<\/li><li><strong>Clear Salt Water<\/strong>: Clear and relatively low-salinity water is conducive to coral growth. Corals do not thrive in conditions of highly saline or freshwater. Water clarity is essential for efficient photosynthesis and light penetration.<\/li><li><strong>Abundant Plankton<\/strong>: Corals rely on a continuous supply of oxygen and small marine organisms called plankton, specifically phytoplankton, which serve as a primary food source. The seaward side of coral reefs typically offers a richer supply of plankton, promoting rapid coral growth.<\/li><li><strong>Minimal Pollution<\/strong>: Corals are incredibly fragile and susceptible to environmental stressors, including pollution. Even minor increases in marine pollution can have devastating effects on coral reefs. To ensure their health, it is essential to minimise pollution and maintain water quality.<\/li><\/ul>\n\n\n\n<p>These factors collectively shape the distribution and prosperity of coral reefs, highlighting the importance of preserving their delicate environment and the need for conservation efforts in the face of ongoing threats such as climate change and pollution.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CLASSIFICATION_OF_CORAL_REEF\"><\/span><strong>CLASSIFICATION OF CORAL REEF<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fringing_Reefs_Shore_Reefs\"><\/span>Fringing Reefs (Shore Reefs)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Fringing reefs are located near the continent, adjacent to the coastline, with small, shallow lagoons separating them from the land.&nbsp;<\/li><li>They are the most common type of coral reefs and can be found in areas such as the Andaman and Nicobar Islands, Gulf of Kutch, and Mannar and Palk Bay.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Barrier_Reefs\"><\/span>Barrier Reefs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Barrier reefs are the largest, highest, and widest among the coral reef types.&nbsp;<\/li><li>They form linear offshore structures, running parallel to the continental margin, with wide, deep non-navigable barriers separating them.&nbsp;<\/li><li>The water body between the reef and the shore is known as a lagoon.&nbsp;<\/li><li>The Great Barrier Reef, located on the eastern coast of Queensland, Australia, is the world&#8217;s largest coral reef and an example of a barrier reef.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Patch_Reefs\"><\/span>Patch Reefs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Patch reefs commonly develop on the island platform or continental shelf between fringing and barrier reefs.&nbsp;<\/li><li>They are often found in shallow lagoons within larger coral reef formations or atolls.&nbsp;<\/li><li>These types of reefs exist in waters with depths ranging from 10 to 20 feet and are typically located close to land.&nbsp;<\/li><li>Locations like the Caribbean, Bahamas, Bermuda, and the Pacific Islands exhibit patch reefs.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Atoll_Reefs\"><\/span>Atoll Reefs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Atolls are ring-shaped coral formations that typically develop in a horseshoe or elliptical pattern.&nbsp;<\/li><li>These coral structures grow around a submerged bench or platform, and no land is present within the central coral lagoon.<\/li><li>A group of various atolls collectively referred to as Faros. The Lakshadweep Islands are an example of atoll reefs.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IMPORTANCE_OF_CORAL_REEF\"><\/span><strong>IMPORTANCE OF CORAL REEF<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Role_in_Ecosystem_Formation\"><\/span><strong>Role in Ecosystem Formation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Sand Formation:<\/strong> Grazing of coral formations by parrotfish contributes to the formation of vast sandy areas. Through the action of currents, these sands lead to the creation of islands, shallows, and eventually the growth of mangroves and other coastal forests.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Coastal_Protection\"><\/span><strong>Coastal Protection<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Wave Absorption:<\/strong> Coral reefs, found along more than 150,000 km of coastline in over 100 countries and territories, act as barriers that absorb the force of waves, currents, storms, and hurricanes from the open sea. This helps to significantly reduce coastal erosion, thereby protecting ecosystems between the reefs and the coasts, including lagoons with seagrass beds, as well as human settlements along the coast.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Food_Resource\"><\/span><strong>Food Resource<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Protein Source: <\/strong>Reef animals are a crucial protein source, with coral reefs providing approximately 10% of the fish caught worldwide. Southeast Asian countries, in particular, depend on coral reefs for 70-90% of their fish catch.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Carbon_Sequestration\"><\/span><strong>Carbon Sequestration<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Reservoir of Carbon: <\/strong>Coral reefs, composed of calcium carbonate, are vital reservoirs for carbon and play a role in sequestering ocean carbon. They are an integral part of the carbon cycle.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Medicinal_Importance\"><\/span><strong>Medicinal Importance<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Potential Medicinal Properties<\/strong>: Coral organisms are being explored for their potential in treating certain cancers and cell aging. Additionally, coral skeletons have been used since the 1970s for bone grafts, showing promise in bone regeneration.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Economic_Significance\"><\/span><strong>Economic Significance<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><strong>Economic Value:<\/strong> Coral reefs contribute significantly to the global economy, estimated to provide a total annual net benefit of $29.8 billion. These reefs are the cornerstone of tropical regions&#8217; economies due to revenue generated from reef-related tourism and marine exports.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Location_of_Coral_Reefs\"><\/span><strong>Location of Coral Reefs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Tropical Belt<\/strong>: Most coral reefs are situated between the Tropics of Cancer and Capricorn, mainly in regions such as the Pacific Ocean, the Indian Ocean, the Caribbean Sea, the Red Sea, and the Persian Gulf.<\/li><li>Beyond Tropics: Warm currents extending out of the tropics allow coral presence in areas further from the equator, like Florida and southern Japan.<\/li><li><strong>Global Coverage:<\/strong> Coral reefs collectively span an estimated 110,000 square miles (284,300 square kilometres) around the world.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Absence_on_West_Coasts_of_Tropical_Continents\"><\/span><strong>Absence on West Coasts of Tropical Continents<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs are notably absent on the west coast of tropical continents, primarily due to:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cold_Coastal_Currents\"><\/span><strong>Cold Coastal Currents:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Peru Cold Current (West Coast of the Americas)<\/li><li>Benguela Cold Current and Canary Current (West Coast of Africa)<\/li><li>West Australian Cold Current (West Coast of Australia)<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Impact_of_Cold_Currents\"><\/span><strong>Impact of Cold Currents:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Cold-water upwelling from depths to the surface creates a cooling effect on the warm surface water, which is unsuitable for coral reef growth.<\/li><li>Corals are unable to thrive in cold waters, as their ideal temperature for growth is around 20 degrees Celsius.<\/li><li>The presence of these cold currents disrupts the warm, stable conditions required for coral survival, thus inhibiting the flourishing of coral reefs along the west coasts of tropical continents.<\/li><\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"https:\/\/lh7-us.googleusercontent.com\/NmuV2YvlSjH8b_Be8SyL9jgu3UgLfEqsPD7rpSw_Ry2-8YrqkQtcYnYBAgAsFNaOSW9YPkFkSNtgOD-0kToBF3CQxJ2--yE-34GIb5OvoHoV2wJZNfb8jk-wieZ4fLtFv6o0QGHMtHXClFxsYpg5dhc\" alt=\"Cold Coastal Currents\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" \/><figcaption><strong>Cold Coastal Currents<\/strong><\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs_%E2%80%93_Coral_Reefs_Formation_Types_and_Importance\"><\/span><strong>FAQs &#8211; Coral Reefs: Formation, Types, and Importance<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_What_are_coral_reefs_and_what_are_they_made_of\"><\/span>1. What are coral reefs, and what are they made of?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs are vibrant underwater ecosystems made up of the calcified skeletons of tiny marine invertebrates called coral polyps. These coral colonies are primarily composed of calcium carbonate.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_What_are_the_key_conditions_required_for_the_formation_and_survival_of_coral_reefs\"><\/span>2. What are the key conditions required for the formation and survival of coral reefs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs require stable climatic conditions, perpetually warm waters (around 20\u00b0C), shallow depths with ample sunlight, clear saltwater, abundant plankton, and minimal pollution. These factors collectively support coral growth.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Why_are_coral_reefs_absent_on_the_west_coast_of_tropical_continents\"><\/span>3. Why are coral reefs absent on the west coast of tropical continents?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The absence of coral reefs on the west coast of tropical continents can be attributed to the presence of cold coastal currents. These cold currents cause upwelling of cold water from the depths, cooling the warm surface water and making it unsuitable for coral survival.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_What_are_the_main_types_of_coral_reefs\"><\/span>4. What are the main types of coral reefs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>There are four main types of coral reefs:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Fringing Reefs: These reefs are located near the coast and are separated from the land by small, shallow lagoons.<\/li><li>Barrier Reefs: Barrier reefs are the largest and are separated from the land by wide, deep non-navigable barriers.<\/li><li>Patch Reefs: These smaller reefs are typically found between fringing and barrier reefs on continental shelves.<\/li><li>Atoll Reefs: Atolls are ring-shaped coral formations with no land within the central coral lagoon.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_How_do_coral_reefs_contribute_to_the_formation_of_other_ecosystems\"><\/span>5. How do coral reefs contribute to the formation of other ecosystems?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs play a crucial role in the formation of other ecosystems. For example, parrotfish graze on coral formations, leading to the creation of sandy areas. These sands, influenced by currents, contribute to the formation of islands, shallows, and eventually mangroves and coastal forests.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_How_do_coral_reefs_protect_coastal_ecosystems_and_human_settlements\"><\/span>6. How do coral reefs protect coastal ecosystems and human settlements?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs act as natural barriers that absorb the force of waves, currents, storms, and hurricanes coming from the open sea. This helps reduce coastal erosion and safeguards ecosystems such as lagoons with seagrass beds, as well as human settlements along the coast.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Are_coral_reefs_important_for_food_resources\"><\/span>7. Are coral reefs important for food resources?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes, coral reefs are a vital source of protein. They provide approximately 10% of the fish caught worldwide, with some Southeast Asian countries depending on reefs for 70-90% of their fish catch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_What_is_the_role_of_coral_reefs_in_carbon_sequestration\"><\/span>8. What is the role of coral reefs in carbon sequestration?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral reefs, composed of calcium carbonate, serve as important reservoirs of carbon. They play a crucial role in sequestering ocean carbon and are an integral part of the carbon cycle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Are_there_any_potential_medicinal_uses_of_coral_organisms\"><\/span>9. Are there any potential medicinal uses of coral organisms?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Coral organisms are being studied for potential medicinal applications, including treatments for certain cancers and cell ageing. Additionally, coral skeletons have been used for bone grafts and show promise in bone regeneration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_What_is_the_economic_significance_of_coral_reefs\"><\/span>10. What is the economic significance of coral reefs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>&#8211; Coral reefs contribute significantly to the global economy, estimated to provide a total annual net benefit of $29.8 billion. They are essential for the economies of tropical regions, thanks to revenue generated from reef-related tourism and marine exports.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Where_are_coral_reefs_primarily_located\"><\/span>11. Where are coral reefs primarily located?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>&#8211; Most coral reefs are found between the Tropics of Cancer and Capricorn, predominantly in regions like the Pacific Ocean, Indian Ocean, Caribbean Sea, Red Sea, and Persian Gulf. They can also be found beyond the tropics in areas where warm currents flow from the tropics.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Why_are_cold_coastal_currents_detrimental_to_coral_reefs\"><\/span>12. Why are cold coastal currents detrimental to coral reefs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>&#8211; Cold coastal currents disrupt the warm and stable conditions necessary for coral reef growth. These currents cause cold-water upwelling from the depths, which cools the warm surface water, making it unsuitable for corals, as they thrive in warm waters with temperatures around 20\u00b0C.<\/p>\n\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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