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Camera for the first time to take the whole process of coral bleaching coral reef cruel drive algae e3300

The first camera photographed the whole process of coral bleaching: coral reef algae source: cruel drive in the Great Barrier Reef tadpole stave has been destroyed 93% of the world, from Hawaii to India ocean, about 12000 square kilometers of coral reefs are predicted to be destroyed at the end of the year. The problem of coral bleaching has become so serious that we can’t ignore it. Now, for the first time, scientists have been able to see the process of coral reef bleaching, which is faster and more serious than previously thought. For laymen, coral reef bleaching is often attributed to environmental changes, such as rising temperatures and increased pollution. Coral reef itself does not grow to make them colorful "hat" – thanks to live in coral tissue in algae. They provide a rich source of nutrients for coral reefs in exchange for a safe place to live and reproduce. The mutually beneficial relationship between coral reefs and algae, also known as symbiotic relationships, is perfect for both parties. But when the situation worse when coral reefs will brutally drive algae in order to protect themselves, in this process, the coral reefs will become white. If the conditions of life do not recover as soon as possible so that new algae can take root, coral reefs will die. "What’s really interesting is that the coral reef is always very fast and furious when it comes to the expulsion of symbiotic people," said Bret, of the Queensland University of Technology, australia. Lewis said. Lewis’s team has been looking at the coral reef in the process of albinism species, especially in the case of Shi Shanhu. After controlling for the environmental variables of stone corals and symbiotic algae, the researchers were able to observe and record their responses to elevated temperatures. In the first twelve hours, the team raised the water temperature from 26 degrees Celsius to about degrees Celsius (78-89 degrees Fahrenheit) and kept the temperature constant for the next eight days. In this water temperature, the coral reef within a few hours to fade the color of the body. In the two hours after the rise in water temperature, the stone coral starts to repel the symbiotic algae that live in their bodies." Lewis said. "Our coral is a pulse expansion way to expel the symbiotic algae coral let their expansion to 340 times the original, and then open the mouth, through the rapid contraction and injection method of the symbiotic algae from. Fourth days to eighth days of the experiment, the coral reef has been repeating this process." Luke, another researcher in the team. Ford added that. More disturbing, the researchers said they chose Shi Shanhu because it was the best and most tenacious coral reef in Great Barrier Reef. Maturity of coral approximately about 20 cm in diameter, about 7 cm (corresponding to the 7.8 and 2.7 inches), which is a unique mushroom coral, they rely on a lot of sugar produced by symbiotic algae for food. The algae also use their fearsome tentacles to catch plankton from the surrounding waters. Symbiotic algae with colorful appearance, from dark brown to green velvet soft, bright beautiful rainbow)相关的主题文章: