Coral reefs are found in warm, shallow waters of the ocean. They are home to many sea animals, such as clown fish, parrotfish, jellyfish, anemones, sea stars, and a host of other creatures. These beautiful structures are formed when coral polyps die and leave behind a limestone structure. The Great Barrier Reef in Australia, reefs in Central America, the Red Sea, Florida, and many others like them face the same threat. Human activity endangers these beautiful habitats.
Human pollution causes major damage to coral reefs. Fishermen that use cyanide to stun and capture tropical fish for aquariums poison the reefs and invertebrate species in the ocean community. Also the overdevelopment of coastal properties causes sewage and fertilizer runoff. The high concentration of pollutants kill coral and expose it to deadly disease. To a lesser extent, oil spills caused by tankers which run into the rocks in the shallow water further contribute to coral destruction.
Ten percent of coral reefs in the world have already disappeared, and without stricter regulations, these beautiful yet delicate reefs will continue to be damaged along with the animals that call them home.
Besides pollution, global warming and recreational damage also contribute to coral reef destruction. Global warming causes the earth's temperature to increase, which melts icebergs and causes the sea level to rise. Since coral reefs grow slower than the rising ocean, the water may become too deep for the sunlight to penetrate. This causes coral life that depends on the sunlight for photosynthesis to starve and die. Destruction caused by recreational activity by tourist also damages these reefs. Tourists buy from tourist shops as souvenirs. When tourists boat, they sometimes anchor in these reefs, thus causing damage. These factors will slowly deteriorate tese natural structures.
Coral reefs are fragile, natural wonders that support...
Destruction Of Coral Reefs Essay
Destruction of Coral Reefs
Coral reefs are marine organisms, which are made up of animals, plants and other creatures. The animal part of the coral reef is called the "polyps. " Polyps are calcium and the outer part of polyp is hard. Coral reefs are one of the most significant diverse ecosystems. About 25% of the marine organisms depend on the coral reefs. The largest coral reef in the world is located in northeast coast of Australia, The Great Barrier Reef. Coral reefs are quite important because they are the habitat of many marine lives and they maintain the quality of ocean water. (Duchesne)
For the measurements of the coral reefs, biologists use the computers to measure the pH level of the water flow. It is really important to measure the response of the corals reefs to the ocean acidification. This is one of the biggest threats to the marine ecosystem. Human activities like producing carbon dioxide can contribute to the destruction of coral reefs. Carbon dioxide is largely absorbed by ocean water and it makes the water more acidic. This change for the coral is not suitable because the skeleton of the corals can easily breakdown when there are natural disasters like cyclone. The level of carbon dioxide has increased by 40% because of the emission of carbon dioxide from the industries. The level of carbon dioxide rose from 280p.p.m (parts per million) to about 385p.p.m till now. The scientists speculate that coral reefs will survive up to 400p.p.m but they will face extinction if they hit 500p.p.m and the reefs all around the will start eroding and will get affected. For collecting coral cores and preparing the data, Australian Institute of Marine Science (AIMS) uses specialized equipment. The equipment luminometere and densitometer are used for non-destructive coral skeletal. (Clarke)
The existing monitoring organizations for preventing the destruction of coral reefs are National Oceanic and Atmospheric Administration (NOAA), AIMS, Coral Reef Early Warning System (CREWS) and others. NOAA organization does campaign to increase the awareness among people not to use chemical pesticides and fertilizers because these are harmful for the coral reefs. It also suggests not littering the waste materials in the water. A non-governmental organization, The Global Coral Reef Monitoring Network, raises awareness and promotes the protection of the coral reefs. The scientists all around the world are well informed about the bleaching of coral reefs and the NOAA Coral Reef Watch (CRW) is using satellite under water to check the temperature of the sea surface. (Nixon) The AIMS Longer Term Monitoring Program (LTMP) has been determining the condition of the 47 reefs in the Great Barrier Reef for the last 20 years. Some trained divers examine the fish and the...
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