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24
Scientists have revealed how some corals can quickly switch on or off certain genes in order to survive in warmer-than-average tidal waters. To most people, 86-degree Fahrenheit water is pleasant for bathing and swimming. To most sea creatures, however, it's deadly. As climate change heats up ocean temperatures, the future of species such as coral, which provides sustenance and livelihoods to a billion people, is threatened.

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24
Shark data collected by citizen scientists may be as reliable as data collected using automated tools. Shark populations are declining globally, and scientists lack data to estimate the conservation status of populations for many shark species. Citizen science may be a useful and cost-effective means to increase knowledge of shark populations on coral reefs, but scientists do not yet know enough about how data collected by untrained observers compares to results from traditional research methods. To better understand the reliability of datasets collected by citizen science initiatives, researchers in this study compared reef shark sightings counted by experienced dive guides (citizen scientists), with data collected from tagged reef sharks by an automated tracking tool (acoustic telemetry).

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14
Marine scientists working in the Western Indian Ocean have found that the corals of the Mozambique Channel should be a priority for protection as climate change continues to threaten these rainforests of the sea. The study -- generated from data gathered from nearly 300 marine sites over thousands of square miles of ocean -- is the latest attempt by scientists to improve efforts to first identify reefs that have survived the effects of higher temperatures and sometimes human pressures such as fishing, and then actions best suited to protecting less disturbed coral ecosystems.

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13
Research on the behavior of coral reef fish at naturally-occurring carbon dioxide seeps in Milne Bay in eastern Papua New Guinea has shown that continuous exposure to increased levels of carbon dioxide dramatically alters the way fish respond to predators. 

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11
A coral-eating flatworm has been identified as a potential threat for coral reefs. It is barely possible to see the parasitic worm Amakusaplana acroporae when it sits on its favorite hosts, the staghorn coral Acropora, thanks to its excellent camouflage. However, the researchers found that the small flatworm could cause significant damage to coral reefs.

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10
The world's reefs are hotbeds of biological diversity, including over 4,500 species of fish. A new study shows that the ancestors of these fish colonized reefs in two distinct waves, before and after the mass extinction event about 66 million years ago that wiped out the dinosaurs.

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01
Scientists have analyzed coral cores from the eastern Indian Ocean to understand how the unique coral reefs of Western Australia are affected by changing ocean currents and water temperatures. The findings give new insights into how La Niña, a climate swing in the tropical Pacific, affects the Leeuwin current and how our oceans are changing.

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14
Deep coral reefs in Papahanaumokakea Marine National Monument may contain the highest percentage of fish species found nowhere else on Earth, according to a study. In waters 100-300 feet deep, nearly 50 percent of fish observed over a two-year period were unique to Hawaii -- higher than any other marine ecosystem. The study also found that on some deeper reefs, more than 90 percent were endemic.

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