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The Great Barrier Reef Marine Park Authority considers the greatest threat to the Great Barrier Reef to be climate change, causing ocean warming which increases coral bleaching. [ 64 ] [ 65 ] Mass coral bleaching events due to marine heatwaves occurred in the summers of 1998, 2002, 2006, 2016, 2017 and 2020, [ 66 ] [ 13 ] [ 67 ] and coral ...
This contributes to the conditions which allow the Great Barrier Reef to thrive, keeping the east coast around 18 °C year round instead of dropping to 12 °C in the winter. [4] The current is very low in nutrients but remains important for the marine ecosystem. The EAC transfers heat from the tropics to the mid-latitude water and atmosphere. [5]
A major coral bleaching event took place on this part of the Great Barrier Reef. The Great Barrier Reef is the world's largest reef systems, stretching along the East coast of Australia from the northern tip down at Cape York to the town of Bundaberg, [1] [2] is composed of roughly 2,900 individual reefs and 940 islands and cays that stretch for 2,300 kilometres (1,616 mi) and cover an area of ...
During that time, between 2016 and 2024, the Great Barrier Reef, the world’s largest coral reef ecosystem and one of the most biodiverse, suffered mass coral bleaching events.
Since 1990, calcification rates of Porites, a common large reef-building coral in the Great Barrier Reef, have decreased by 14.2% annually. [10] Aragonite levels across the Great Barrier Reef itself are not equal; due to currents and circulation, some portions of the Great Barrier Reef can have half as much aragonite as others. [17]
Heron Island, Australia. A cay (/ ˈ k iː, ˈ k eɪ / KEE), also spelled caye or key, is a small, low-elevation, sandy island on the surface of a coral reef.Cays occur in tropical environments throughout the Pacific, Atlantic, and Indian oceans, including in the Caribbean and on the Great Barrier Reef and Belize Barrier Reef.
The Great Barrier Reef Marine Park Authority (GBRMPA) is responsible for the care and protection of the Great Barrier Reef Marine Park.It uses a range of tools to manage the marine park including Acts and Regulations, zoning plan, plans of management, traditional owner agreements, partnerships, stewardship and best practice, education, research and monitoring and reporting.
The Great Barrier Reef could be killed as a result of the rise in water temperature forecast by the IPCC. A UNESCO World Heritage Site, the reef has experienced unprecedented rates of bleaching over the past two decades, and additional [clarification needed] warming of only 1 °C is anticipated to cause considerable losses or contractions of ...