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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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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Topic: Ecosystem Focused topic: Decline of Coral Reefs Thesis Statement: Caribbean waters which contains coral reefs‚ one of the world’s most stunning‚ interesting and dynamic ecosystems‚ is diminishing rapidly due to pollution‚ overfishing and climate change. I. Pollution has greatly led to the decline in coral reefs. * Sources of pollution to coral reefs. 1. Land based pollution that runs into the sea is a major threat to coral reefs. 2. Marine debris which is made up of objects
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The Decrease of Coral Reefs Taylah Bruce Science 10.3 The Decrease of Coral Reefs In Australia‚ particularly‚ the rapid decrease of coral is becoming a vast issue. Our most prominent body of coral‚ The Great Barrier Reef‚ is facing annual bleaching within the next twenty years due to warmer‚ more acidic seas. It has alerted scientists all over the world of the future we face and many have come together in hope of conserving this amazing natural wonder and the millions of marine life that
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The coral reef structure also buffers shorelines against waves‚ storms‚ and floods‚ helping to prevent loss of life‚ property damage‚ and erosion. Several million people live in U.S. coastal areas adjacent to or near coral reefs‚ and the well-being of their communities and economies is directly dependent on the health of nearby coral reefs. Reefs also protect the highly productive mangrove fisheries and wetlands along the coast‚ as well as ports and harbors and the economies they support. Globally
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Coral reefs are one of the world’s hidden treasures. In a coral reef‚ you can find anything from plants to certain types of animals. Some of the coral that you might see can be dangerous and fatal to humans. While some coral reefs are dangerous‚ others aren’t. There are a lot of things in a coral reef and many topics worth being discussed‚ but only three topics will be touched on throughout this paper. The first topic is the food web within the coral reefs; the second topic being discussed will be
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Coral reefs have been dubbed the “rainforests of the oceans”‚ because of the rich diversity of life they support‚ as more than one quarter of all marine animals depend upon coral reefs. Coral reefs are also a source of food and income for millions of people. The coral reef ecosystems benefit humans commercially‚ recreationally and environmentally. Without them many tourism based industries would collapse‚ treatments or cures for some illnesses would disappear‚ and the countless organisms they support
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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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