Course, Fresher - Class Today, the reef is a Marine Park and World Heritage Area and supports a range of activities and contributes over AUD $5.6 billion each year to the Australian economy and is also responsible for creating over 70,000 jobs. According to the United Nations Environment Programme, there are more cold-water coral reefs worldwide than tropical reefs. (Judicial), Power Mind Institute The Gulf of Kutch is situated in the northern part of Saurashtra Peninsula and is located between 22°15′-23°40′ N Latitude and 68°20′-70°40′ East Longitude having an area of about 7350 sq km. Admit Card, SSC the most difficult exams, Live Online. These 21 islands fall between latitude 8°47′ N and 9° 15′ N and longitude 78° 12′ E and 79° 14’E and form a part of the Mannar Barrier Reef which is 140 km long and 25 km wide. Prelims Syllabus, UPSC GS Want to help us with remote island clean-ups during critical bird habitat seasons? Several new species have already been discovered during the project. Coral reef bleaching is caused by various anthropogenic (overexploitation, overfishing, increased sedimentation, nutrient overload) and natural variations in reef environment like violent storms, high and low temperature extremes, flooding, El-Nino, sub … Answer Key, GPSC CORAL provided the most extensive picture to date of the condition of a large portion of the world’s coral reefs from a uniform dataset. It is a world heritage site. - Coral reefs are formed by shell over shell accumulation. A survey has found record sea temperatures had caused the third mass bleaching of the 2,300-kilometre Great Barrier Reef system in just five years. Donate Become a Member. These islands extend southward from the Irrawaddy Delta of Burma to the Arakan Yoma Range. Academy, Success Mantra IAS The concentration of photosynthetic pigments within the zooxanthellae fall. PSC, Andhra Pradesh - ‘Coral polyp’ cannot live above the water level and hence below it. AIIMS, IIT, IIM Alumni and aims to revolutionize test preparation PSC, Uttar Pradesh Under favourable conditions, the colony of corals grows in profusion just below the water level. through GATE, GATE Previous Year PSC Exam Pattern, Sikkim Coral reef bleaching is a reaction to the stress applied on the coral polyps. It is very important for the UPSC CSE … Latest Current Affairs in about Coral bleaching. Pradesh MPPSC, Rajasthan cum Mains, Bihar The surface water temperature of the ocean must not be less than 20 degrees Celsius. Details, CSIR UGC Exam Previous Year Question Papers, UPSC Exam Pattern, UKPSC NEET It is possible but has not been demonstrated, that sediment loading could make zooxanthellae species more likely to bleach. Course, Target - XII Answer Key, KPSC Materials, Answer Prelims Result, UPSC Mains If the stress-causing bleaching is not too severe and if it decreases with time, the affected corals usually regain their symbiotic algae within several weeks or a few months. International conference on status and protection of coral reef also held to spread awareness about the security of the coral reef According to a study, since 1982, three mass bleaching events occurred in 1998, 2010, and 2016 have occurred in India. Salary, IES - ESE Insights has redefined the way preparation is done in UPSC civil service exam Contact Nanda Ashirwad Complex, 3rd Floor, Above Answer Key, GATE Application form, RRB JE Admit Ecologically, coral reefs are important because they are the counterpart to the tropical rain forest in terms of species diversity and biological productivity in the Ocean. Engineers Career Group, Current 70% of the Earth's coral reefs are threatened, 20% have been destroyed with no hope for recovery, 24% are under imminent risk of collapse, and an additional 26% are at … Pattern, CDS Among all these coral reefs, the Lakshadweep reef is an example of atoll while the rest are all fringing reefs. Group 1 Answer Key, TPSC Crisp news summaries and articles on current events about Coral bleaching for IBPS, Banking, UPSC, Civil services. Enginners Zone, Practice UPSC Previous Years' Prelims Paper. Again they will not flourish where cold current flows and around the cold upwelling zones, as the surface temperature of the water is below the ideal requirement. Studies Foundation Course by Lukmaan IAS, Geography It occurs when. Pattern and Syllabus, TNPSC Civil Prep Strategy, IES When I joined Ocean Quest Global, I was introduced to a completely new technique of growing corals.This method is based on an entirely organic approach without introducing any artificial structures, like plastic pipes, tires or metal structures, to the marine environment. Coral reefs are found all around the world in tropical and subtropical oceans. The Andaman and Nicobar Islands fall between 6°-14° N lat and 91 °-94° E longitude. When the bleaching of corals occurs, they usually lose around 60-90 percent of their zooxanthellae, and each zooxanthella may lose around 50-80 percent of its photosynthetic pigments. Card, GATE As a result, the white calcium-carbonate exoskeleton is visible through its transparent tissue leading to a condition known as Coral Bleaching. One-quarter of all marine life depends on coral reefs for food and shelter. 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