...The Coral Reefs Ecosystem Hidden beneath the ocean water, is the coral reefs team of life. Fish, corals, lobsters, clams, sponges, seahorses, sea turtles are only a few of hundreds of thousands of creatures that rely on reefs for their survival. I think that coral reefs are beautiful and I find that ecosystem of a reef is fascinating. Despite the fact that Corals look like rock or plants they are definitely marine animals. Corals life begins in tropical water as floating larvae. After a short period of time the larvae attaches itself to a hard surface and becomes a polyp. Corals are related to the jellyfish some people say that a coral looks like a jelly fish upside down due to a coral having a lot of tiny polyps. A single coral polyp may be as large as a saucer or small as the top of a pinhead. There are billions of polyps working together in a cooperative colony. Generation after generation creating a limestone skeleton that forms the framework of the beautiful coral reefs. Coral Reefs grow very slowly. It could take up to a hundred years for a reef to grow 3ft. (Best&Bornbusch, 2001) Coral Reefs have been in existence for over 215 million years and located in tropical waters. The earths ocean floors cover more than 70% of our planet's surface and 97% of that water is found in the ocean. As everyone knows ocean water is salty and the reason being is due to the salinity in the water. The two ions found in seawater are chloride and sodium. The salt in the ocean's water has...
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...The coral bleaching from different perspectives Introduction Coral reefs are highly productive ecosystem that also habitats for coastal animals and offer services to human communities (Kubicek, Muhando and Reuter 2012, p. 1). Coral reefs are places for many fishes and other living creatures in the sea to hide and live. Coral reefs also have a huge impact to human communities. Coral reefs and the beauty of living creatures that live within them have become major attraction for tourist and income for local communities. Unfortunately, human activities have caused coral reefs destroyed because of activities such as overfishing, diving, chemical pollution, reef mining and many other things (Carey 2000, p. 147). This activities lead to coral bleaching, which will become danger for many creatures that live in it. The Great Barrier Reef has lost half of its half coral reef in the last 27 years, and 10 per cent of the damage is caused by coral bleaching (De'ath 2012). Coral bleaching however impact many perspectives. From science perspective, coral bleaching has been a threat for many coral species and fishes that lives in it for they are becoming extinct and destroyed (Kubicek, Muhando and Reuter 2012, p. 1). This will leads to the less variety of the coastal ecosystem riches and incur social and economic loss to its social community. Coral bleaching also have impacts to the indigenous people. Indigenous people have used coral reef and its resources as dependence for their food supply...
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...Coral reefs are biologically diverse marine ecosystems, but are also the most fragile and endangered of them all. Covering 0.1 percent of the earth, coral reefs provide crucial habitat for over a quarter of marine species, many of which are endangered and threatened. For centuries, people have depended on reefs not only for food but also protection from storms and sand for beaches. More recently, with the development of the SCUBA, reefs help to provide communities with income and employment through tourism and recreation. They are also crucial to pharmaceutical development, providing scientists with certain chemicals compounds. Despite this, they are constantly being destroyed by human activities such as overfishing, mass collection of coral and coral species and pollution. Although the United States government is involved in the conservation of these ecosystems, an estimated 25% of reefs have been destroyed beyond restoration. They, along with other organizations, are working to preserve the estimated...
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...Coral reefs occupy only 0.2% of the ocean floor, yet they are the most biologically diverse marine ecosystems known today, and support over 25% of all marine organisms (Yip). Due to the massive amount of marine species that populate coral reef habitats, maintaining healthy reefs is crucial for the continuation of marine biodiversity. In past years, the increase of mortality rates in coral has been caused by a number of factors, including wide-spread stress and disease. In the Indo-Pacific, coral reefs have been declining at a rate of approximately 2% per year for the last 20 years (Yip). Coral reef fish biodiversity is crucial for the sustainability of the coral reef ecosystem, as well as for the ability of the coral reefs to provide services...
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...Coral reefs form some of the most diverse ecosystems on earth. They occupy less than 1% of the worlds ocean surface, about half the area of France, yet they provide a home for 25% of all marine species, including fishes, molluscs, echinoderms and sponges. They are most commonly found at shallow depths in tropical waters, particularly in the Pacific Ocean. Coral reefs deliver ecosystem services to tourism, fisheries and shoreline protection. The annual global economic value of coral reefs has been estimated at $375 billion. It is believed to have emerged more than 540 million years ago. New species originate 50% faster in coral reefs than in any other habitats. The fossil records show that reefs have been remarkably successful in surviving through large environmental disturbances. However the combination of drastic environmental changes that we're seeing today, such as degraded water quality, depleted fish stocks, coral bleaching, ocean acidification and loss of habitat causes them to be under great threat. Coral reefs are perhaps one of the greatest but, least known of wonders of our world. There are three different kinds of coral reefs. There are fringing, barrier, and atoll. Fringing reefs are attached to margins of an island or continent, rough, table like surface, as much as 1 kilometer wide. On their seaward side they slope steeply to the ocean floor. Fringing reefs grow in shallow water near the shore and prefer dry climates with limited river runoff. There are...
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...Keys and not seeing the pristine coral reefs with thousands of fish forming a kaleidoscope of colors surrounding the reef. Then going about 150 miles northwest and just finding a monument telling the story of once,” great river of slow moving grass,” which used to flow in this semi-arid condominium filled part of Florida. These are not just part of concerned citizens and groups conservation active imagination these are ecological problems two of the greatest ecosystems in the world are facing today. Unless the United States and the State of Florida take steps to conserve coral reefs in the Florida Keys and restore the Florida Everglades today this is the reality of future generations. Coral Reefs Threats to coral reef are many, and the solution must be cohesive not scattered when addressing these threats. Implementing a cohesive ecosystem-based management approach is the key protecting the coral reefs from these threats. Ensuring a holistic and combined approach will support a healthy, living, resilient, coral reef. The methods used the Pacific Island coral reefs to preserve their ecosystems might not be the methods needed to meet the needs of the Florida Keys coral reef’s ecosystem. The different approaches necessary to maintain the varying community needs and address the local coral reef ecosystem is called a multidisciplinary approach. Multidisciplinary Approach The importance of a multidisciplinary approach to conserving the coral reefs of the Florida Keys cannot be under...
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...threats to one named global ecosystem – 15 Coral Reefs are a unique ecosystem, which usually grow in conditions where the temperate is around 24c and in less than 25m depth of water. Coral reefs are homes to over 25% of known sea creatures and are an invaluable service for the local population as a source of food and income. Coral Reefs are under huge stress due to the impact that human activities are having and in fact already 1/5 of the world’s coral reefs are so damaged that they are beyond repair. A global threat, which is affecting all fragile ecosystems, including coral reefs, is global warming. Firstly, the average increase in global temperatures is leading to an increased rate of ice cap melting. The melting of the ice caps releases more fresh water into the oceans, reducing salinity. The increased water volume is also increasing sea level rise; coral reefs find it difficult to survive in over 27m depth of water. The increase in sea temperatures can also change the nutrient flow. Coral bleaching is a devastating side effect of global warming which affects the corals. Coral bleaching is permanent damage and is occurring globally. The effects of the bleaching are worsened during El Nino years; in 1990 almost 50% of the worlds coral reefs were severely damaged. The most damaged reefs were in the Persian Gulf where 65% had been destroyed, followed by reefs in South Asia where 45% and 38% respectively, were considered destroyed. The Great Barrier Reef in Australia also witnessed...
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...recommends) steps that could help to build a stronger support system for the reef management and also advance the efficiency of the already existing conservation techniques. International researchers and scientists – Shankar Aswani, Rhodes University (Africa), Peter J. Mumby, University of Queensland (Australia), Andrew C. Baker, University of Miami (USA), Patrick Christie, University of Washington (USA), Laurence J. McCook, Great Barrier Reef Marine Park Authority (Australia), Robert S. Steneck, University of Maine (USA) and Robert H. Richmond, University...
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...oil. We need to burn these fuels because they're part of our daily lives. We use these fuels to have electricity, drive our cars, and fuel businesses. The trapped heat in the atmosphere is causing climate change which causes massive storms. The effects of these killer and dangerous storms is that we have to adapt to the new environment and because of killer storms there is a higher death rate. Secondly, global warming is affecting our coral reef because of the increased temperature and ocean acidification in the water the coral reef post as a threat to our oceans. Many species depend on the coral reef for basic needs such as food sources, habitat or shelter. Without the coral reef many species will die because they don't have a shelter or food supply. Without these species the ecosystem would fall apart. The worst case scenario will be the coral population collapsing by 2100 due to the bleaching of corals. Sadly the coral reef would be “the first global ecosystem to disappear”- Times Online: 21st century Noah’s ark needed to save coral reefs from extinction. Thirdly we are being affected by wild spread extinction. Rising temperatures make it harder for species to adapt to new climate, which can lead to massive extinction of many species. We depend on animals and plant life, if they were to go extinct we would not be able to function and live our daily lives. The climate change is also affecting...
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...The rainforest of the sea, also known as the coral reefs, has a significant amount of marine species and organisms living in a small fraction of the ocean. They cover about 0.1 percent of the ocean’s surface and support more than 4,000 species of fish, 800 species of hard corals and hundred of other species (National Oceanic and Atmospheric Administration, NOAA). This estimation of numbers does not include the unexplored parts of the coral reefs, and many scientists are trying to further explore this area. Based on research, scientists concluded that coral reefs are very sensitive to the type of environment they live in and due to natural occurrences and human activity the coral reefs are slowly dying. The dying of coral reefs detrimentally affects many of the species that rely on this area for food and shelter, which includes humans as well. However, who or what can we blame for this happening? The coral reefs for being too sensitive or humans for polluting the oceans? Coral reefs are highly sensitive to the...
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...Coral bleaching is caused by the changing temperatures of the ocean. Ninety-three percent of climate change heat is absorbed by the ocean. This means that as the temperatures rises from global warming, so does the ocean. Coral are unable to adapt to the changing heat at the rate that it is changing. Under normal conditions, the algae perform photosynthesis and provide nutrients that provide the coral with energy to continue to build. However, with the rising temperature this makes it difficult for the algae to photosynthesize. Bleaching is caused by a response from the changing temperatures in the ocean. As the temperatures rise, this causes the relationship between the coral and algae to break down. The algae are unable to process the sun’s...
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...Protect Coral Reefs Those who love to snorkel or dive know how beautiful coral reefs are up close. These vibrant ecosystems are the homes and breeding grounds of multiple sea creatures. However, due to pollution and human activity, about 20% of coral reefs in the world have been damaged beyond repair. The bright side is, if we all take action today, we can still protect the remaining reefs in our oceans. Scientists and conservation groups are working double time to use their expertise in saving our seas and coral reefs. Even if you aren't an expert, you can still do a lot to join the movement. 1. Cut your carbon footprint. Climate change is a leading cause of coral reef deaths. Lessen your amount of carbon emissions by walking,...
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...Recipe for rescuing our reefs The colourful world supported by coral reefs is under threat as oceans absorb greater quantities of carbon dioxide, says Rod Salm. In this week's Green Room, he says we must accept that we are going to lose many of these valuable ecosystems, but adds that not all hope is lost. I've been privileged to see many of the world's finest and least disturbed reefs. Mine were the first human eyes to see many of the remotest reefs at a time when we really could describe them as pristine. I would never have dreamed that they were at risk from people, far less than from something as remote then as climate change. Today, despite the doom and gloom one reads so much about, one can still find reefs that are vibrant, thriving ecosystems. But sadly, too, there are more and more that look like something from the dark side of the Moon. These degraded reefs have been ravaged by destructive fishing, bad land use practices that smother them with silt, and pollutants that foster disease and overgrowth by seaweeds. More alarmingly, there are large areas that are killed off and degraded by warming seas linked to climate change. We've all read that global warming poses a tremendous threat to our planet, and that coral reefs will face an uphill battle to survive in warmer waters. Yet the greatest threat to our oceans and to all of its wonders is little known, nearly impossible to see, and potentially devastating. This is not climate change, but does stem from the excess...
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...Climate change implications for the Pacific Islands Across the planet now we see ever more flood, ever more drought, ever more storms. People are dying, communities are being wrecked and local plants and species are being wiped away — the impacts we’re already witnessing from climate change are unlike anything we have ever seen before. There is report that identifies small island states as being the most vulnerable countries of the world to the adverse impacts of climate change. The Pacific is in fact without a doubt one of the world’s most vulnerable regions when it comes to risk of disaster due to climate change, particularly several of the low-lying coral islands. Climate change is already affecting Pacific Islands with dramatic revenue loss across sectors such as agriculture, water resources, forestry, tourism and other industry-related sectors. Some of the projected impacts of climate change on main sectors that specifically apply to the Pacific Islands are listed below. (reference here) Agriculture is extremely vulnerable to climate change, with high temperature levels reducing yields of desirable crops and changes in precipitation patterns increasing crop failures (reference here). Pacific islands are constantly being exposed to these threats of climate change and we have already witnessed the effects of these threats. For example the different weather variations occurring in different parts of the pacific islands, low levels of our crops and forestry production...
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...220 Coral Reefs vs. Climate Change Corals reefs around the world have been fighting climate change for just over two centuries. This problem hasn’t caught much attention to the average human eye, but it’s about time everybody realizes how this is affecting their everyday lives as well. Coral bleaching is one of the main concerns with coral reefs around the world. Coral bleaching can be fatal to coral reefs, which in return could hurt us in the future. Ocean acidification is another problem that coral reefs are facing around the world. Not only is it harmful to the coral reefs but harmful to marine life as well. Although these are all negative actions towards coral reefs there can be a bright...
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