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- The Great Barrier Reef is the world's largest reef systems, stretching along the East coast of Australia from the northern tip down to the town of Bundaberg, 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 approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland in northeast Australia. A large part of the reef is protected by the Great Barrier Reef Marine Park. According to the 2014 report of the Australian Government's Great Barrier Reef Marine Park Authority (GBRMPA), says that climate change is the most significant environmental threat to the Great Barrier Reef, while the other major environmental pressures are listed as decreased water quality from land-based runoff, impacts from coastal development and some persistent impacts from fishing activities. The reef is also threatened by storms, coral bleaching and ocean acidification. The 2014 report also shows that, while numerous marine life species have recovered after previous declines, the strength of the dugong population is continuing to decline. Terry Hughes, Federation Fellow, ARC Centre of Excellence for Coral Reef Studies at James Cook University, wrote in a 14 August 2014 Conversation piece that harmful government policies and ongoing conflicts of interest over mining royalties are risks of an equivalent magnitude. The GBRMPA consider climate change, poor water quality, coastal development, and some impacts from fishing to be the area's major threats, but reef scientists Jon Day, Bob Pressey, Jon Brodie and Hughes stated that the "cumulative effects of many combined impacts" is the real issue. In a Conversation article, Mathieu Mongin, a biogeochemical modeller at CSIRO and colleagues mapped parts of the Great Barrier Reef that are most exposed to ocean acidification. This map of pH on the Great Barrier Reef presents the exposure to ocean acidification on each of the 3,581 reefs, providing managers with the information they need to tailor management to individual reefs. The Great Barrier Reef is not a singular reef nor a physical barrier that prevents exchange between reefs; it is a mixture of thousands of productive reefs and shallow areas lying on a continental shelf with complex oceanic circulation. (en)
- La Gran Barrera de Coral es el arrecife de coral más grande del mundo, compuesto por alrededor de tres mil arrecifes individuales y novecientas islas a lo largo de 2600 kilómetros, con un área de 344 400 km². Se encuentra en el Mar de Coral, cerca de la costa de Queensland, al noreste de Australia. Una gran porción del arrecife está bajo protección del Parque Marino de la Gran Barrera de Coral. Las amenazas medioambientales que sufre la Gran Barrera de Coral son varias: la más predominante es la baja calidad del agua, contaminada por escorrentía con sedimentos, exceso de nutrientes y pesticidas y con fluctuaciones en el nivel de salinidad. Los efectos del cambio climático, como el aumento de la temperatura, las tormentas y el blanqueo de coral también influyen. Otras amenazas son el crecimiento en las poblaciones de acantáster púrpura, la pesca (que modifica la cadena alimenticia) y el transporte marítimo, que puede causar derrames de petróleo o manejo inadecuado de las aguas de lastre, ambos componentes muy dañinos para el arrecife. (es)
- 大堡礁是世界上最大的珊瑚礁群，由大约3000个礁体和900个岛屿组成，绵延2,600公里（1,616英里），覆盖约344,400平方公里。大堡礁位於澳大利亚东北部昆士兰州的珊瑚海上，其中很大一部分是由负责保护的。 大堡礁受到的环境压力包括：来自径流的低劣水质，其中含有悬浮沉积物、过剩营养物、杀虫剂，且盐度波动不定；气候变化的影响，例如气温上升、风暴天气以及现象；此外棘冠海星的周期性大量出现，过度捕捞导致食物链破坏，以及运输航线上的的石油泄漏或不当的压载水排放都会影响大堡礁的生态环境。 (zh)
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- 大堡礁是世界上最大的珊瑚礁群，由大约3000个礁体和900个岛屿组成，绵延2,600公里（1,616英里），覆盖约344,400平方公里。大堡礁位於澳大利亚东北部昆士兰州的珊瑚海上，其中很大一部分是由负责保护的。 大堡礁受到的环境压力包括：来自径流的低劣水质，其中含有悬浮沉积物、过剩营养物、杀虫剂，且盐度波动不定；气候变化的影响，例如气温上升、风暴天气以及现象；此外棘冠海星的周期性大量出现，过度捕捞导致食物链破坏，以及运输航线上的的石油泄漏或不当的压载水排放都会影响大堡礁的生态环境。 (zh)
- The Great Barrier Reef is the world's largest reef systems, stretching along the East coast of Australia from the northern tip down to the town of Bundaberg, 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 approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland in northeast Australia. A large part of the reef is protected by the Great Barrier Reef Marine Park. (en)
- La Gran Barrera de Coral es el arrecife de coral más grande del mundo, compuesto por alrededor de tres mil arrecifes individuales y novecientas islas a lo largo de 2600 kilómetros, con un área de 344 400 km². Se encuentra en el Mar de Coral, cerca de la costa de Queensland, al noreste de Australia. Una gran porción del arrecife está bajo protección del Parque Marino de la Gran Barrera de Coral. (es)
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