The oceans today are 30 percent more acidic than they were at the time of the Industrial Revolution. This interferes with the way that corals produce calcium carbonate‚ and it becomes difficult to build reefs. Oil spills are a major issue‚ and in recent accidents; ships hit coral reefs off India and spilt oil‚ causing reef damage. Surface currents are more rapid than the currents of the deep sea‚ limiting the ability of the deeper plumes (oil) to spread widely; oil and chemicals will diffuse as
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I. Attention Getter Coral reefs are the most diverse of all marine ecosystems. They teem with life‚ with perhaps one quarter of all ocean species depending on reefs for food and shelter. II. Credibility Statement Coral reefs are also very important to people. The value of coral reefs has been estimated at 30 billion U.S. dollars and perhaps as much as 172 billion U.S. dollars each year‚ providing food‚ protection of shorelines‚ jobs based on tourism‚ and even medicines (Knowlton‚ 2015). III. Relevance
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Coral Reefs‚ Our Disappearing Beauty Coral reefs are one of nature’s riches ecosystems with a diverse existence of life which is ultimately quite complex. They are a colorful ecosystem that plays an important role in the marine world and the human world as well. They are home to countless plants and animals‚ a source of food‚ medicines and one of the unique wonders of our world. While they might bring the image of life near a tropical paradise‚ there is much more to the coral reef than
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is a piece of expository writing about coral reefs. I taught it fitting to write on coral reefs because they are so important and are getting destroyed every day. Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals‚ which in turn consist of polyps that cluster in groups. Living coral reefs are the foundation for many marine species
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Coral reefs have existed on this planet for approximately 450 million years. They provide an extremely diverse marine ecosystem. (Bellwood and Wainwirght2002) Coral reefs are the largest natural structures in the world and occur in over 100 countries. They are the result of a remarkable relationship between coral animals and microscopic algae. The microscopic algae (zooxanthellae) coverts sunlight and carbon dioxide into oxygen (photosynthesis) and carbohydrates for the coral animals (polyps)
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ocean‚ we will find an equally dynamic environment in the depths of our world ’s coral reefs. As a Zoology major‚ I quickly decided to explore this biological component of the ocean environment. In the following paper‚ I will provide a general overview of coral reefs and examine the alarming depletion of coral and their ecological symbionts in a process known as coral bleaching. As mentioned earlier‚ coral reefs are among the most diverse and productive of all communities on Earth. They are
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atmospheric heat‚ the Arabian/Persian Gulf was inflicted with coral bleaching (caused by detachment of algae from coral due to increased ocean temperature) and disease‚ as studied by Bernhard Riegl and Sam Purkis. This is a large-scale issue that could have been prevented by a limitation of greenhouse gas emissions. Riegl and
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people. The multi-colors of the corals‚ the unique sea creatures and many more have been candy for the eyes and inspiring to the people. But if people like it so much‚ why do they let it slowly disappear? Right now Indonesia’s Coral Reefs are decreasing in a rapid pace. The main causes are dynamite fishing and demands of reef products. According to the Oceanology Study and Development Centre of the Indonesian Institute of Sciences (LIPI)‚ 70% of Indonesia’s coral reefs are in a very bad condition.
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CHANGE CORAL BLEACHING and the FUTURE of the WORLDÕS CORAL REEFS by O V E H O E G H Ð G U L D B E R G ASSOCIATE PROFESSOR‚ SCHOOL OF BIOLOGICAL SCIENCES‚ UNIVERSITY OF SYDNEY DIRECTOR‚ THE CORAL REEF RESEARCH INSTITUTE‚ UNIVERSITY OF SYDNEY ISBN 90-73361-52-4 Sea temperatures in the tropics have increased by almost 1oC over the past 100 years and are currently increasing at the rate of approximately 1-2oC per century. Reefbuilding corals‚ which are central to healthy coral reefs
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the Beauty of Coral Reefs Pretend you are about to go scuba diving in the ocean. You jump in the water and begin to sink down. As you start surveying the coral reefs around you‚ something catches your eye. The coral has turned white‚ and no longer moves with life. This whiteness seems to have spread over a large area of the reef. You no longer see the colorful branches swaying in the current‚ or the schools of tropical fish swimming through the leaves. This death-ridden reef will never have
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