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The effect of global warming on coral reefs
Essay on why humans are damaging the coral reef
The effect of global warming on coral reefs
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Coral reefs are one of the most beautiful, and cherished ecosystems on Earth, and they are also highly threatened. Tourism, destructive fishing, climate change, coastal development, and other human activities, put our coral reefs in danger. Over a third of the world’s coral reefs will be gone within our lifetime. This means devastating loss in income, food, and scientific discoveries. There is still hope for the coral reefs, however bad the outlook may seem. Conservation projects in countries throughout the world have initiatives led to conserve the coral reefs. Coral reefs protection is being established worldwide and is considered one of the best ways to achieve reef protection. Human activity is directly and indirectly causing damage to the coral reefs.
There are three main types of reef, which includes fringing reef, barrier reef, and atoll reef. Fringing reef has either a completely shallow back reef zone (i.e. lagoon) or nothing at all. Barrier reef is reef that is separated from mainland or island shore by a deep channel, or lagoon. Atoll reef is more or less somewhat circular or continuous barrier reef that goes all the way around a lagoon, without a central island. Other types of reefs include patch reef, apron reef, bank reef, ribbon reef, table reef, habili, microatoll, cays, and seamount or guyot.
Many corals make up the coral reef. Some include hard corals, Elkhorn corals, sea fans, and sponges. Scleractinia, similarly known as stony or hard corals, are corals that create a hard skeleton. Much of the structure of modern coral reefs is made by Scleractinians. Stony or hard coral numbers are likely to drop, due to the effects of global warming. Elkhorn coral is believed to be one of the most vital reef-building corals. ...
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... the world's reefs died due to increased water temperature. Bleaching leaves corals susceptible to disease, while severe bleaching kills them. An estimated 10% of the world's coral reefs are dead, and 60% of the world’s coral reefs are at-risk, due to tourism.
There are many ways everyone can make a difference for our planet’s coral reefs. Ways to help are conserving water, reducing pollution (walk, bike, or ride the bus), and using organic or eco-friendly fertilizers. By not littering is another way to protect the reef. Any kind of trash can pollute the water and harm the reef and the fish living there. When diving, don’t touch the reef. If you’re boating, don’t anchor your boat to the reef. It’s all common sense, we are one of the reasons the coral reef is being destroyed. We impact it both knowingly and unknowingly. Why not start with protecting our coral reefs?
Coral reefs around the world are in danger. One of the causes is global warming, which has been increasing the temperature of the ocean water resulting in coral bleaching. This essay will focus on damage occurring to the Great Barrier Reef.
Believe it or not the current pop culture surrounding the reef is environmental protection. This mean that people are trying to protect and cleanse the reef of toxic waste and such. And the reason that comes to mind as to why they are protecting the reef is because they would want to preserve such a mythical place from the bottom of their
Earth, an endless source of wonder and beauty, produced the Great Barrier Reef. Hustling and bustling, the Reef thrives like a busy city, teeming with life. Sheltering thousands, corals, maintain the well-being of the Reef; however, the world threatens its nature and delicacy. Populations growing and technological advances increasing, the world becomes more and more disconnected with the natural world, posing an alarming risk for the planet we live on. Although many organizations try to keep the oceans clean, because of human interference and unnatural occurrences, the Great Barrier Reef needs scientific help to adapt corals to new conditions for means of survival, putting pressure on the Australian government to save their ocean environment.
This website gives a large historical overlook and possible conclusion to the issue of coral reef bleaching. Since the 1980’s episodes of coral reef bleaching and death have occurred almost every year in one or more of the world's tropical or subtropical seas. Bleaching happens in episodes, with the most severe typically accompanying coupled ocean–atmosphere phenomena. Bleaching episodes have resulted in loss of coral
Coral Reefs are said to be the “tropical rainforest” of the sea. They are home to over 25% of all marine life (http://coralreefalliance.org.stories/storyReader$77). Over the past few decades they have been subjected to destructive anthropogenic practices. Some of the major threats to coral reefs include sedimentation, water pollution, harmful recreational activities, and global warming. All of these things cause stress on corals and can potentially cause mortality. Corals are made up of two parts, a polyp and zooxanthellae. A polyp is a calcerous body that grows from a hard part of the ocean floor. Zooxanthellae is a photosynthetic algae which lives in the polyp and provide energy for themselves and the coral. In many cases, corals undergo “bleaching,” which is a process where corals lose the zooxantheallae or chlorophyll pigment, and turn white (Wilkinson et all). After bleaching corals can survive for several months. It is possible for corals to recover by hosting more zooxantheallae, but it can take between 5 and 50 years for them to recover completely (Wilkinson et all, 1999).
Coral bleaching is when the tiny algae that lives in the coral which causes it to be bright and colourful, gets so stressed out when the water temperature exceeds the limit that it can handle, which then makes the algae
Imagine a lush underwater place. Beautiful structures colorful animals and places that would never have been thought of before. In reality that's not what it really looks like, really the ocean is a desolate place that is barren like a desert. Many marine species have been lost by as much as 49%.(seeker) A big part of that reason is because of coral bleaching which causes as stated above a decline in species that depend on the coral as there home. Coral bleaching is a serious problem that could cause problems for everyone if we don’t fix it.
Bleaching is when the ocean water become too warm, “corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching. When a coral bleaches, it is not dead. Corals can survive a bleaching event, but they are under more stress and are subject to mortality.” (Cave and Gillis). When a coral bleaches, it is more of like a self defense mode, which makes it turn white. The coral loses its food source as well. The downfall of this is that without the cooler waters, the corals could die of starvation or disease. Cooler waters from below can help a bleached coral bounce back to its natural state. However, if the water stays too warm for an extended period of time, “the corals don't just bleach, they cook and they die very quickly,.” (Westcott). Throughout time, much of the corals near Cairns and northward have lost the most corals. Hughes states that, “near Cairns, the Great Barrier Reef has lost 47 percent to 83 percent of their coral and as you go northward, the Great Barrier Reef has lost 11percent to 35 percent of its corals.” (Cave and Gillis). In another report, “a study last year found the largest die off of corals ever recorded with about 67 per cent of shallow water coral found dead in a survey of a 700km stretch.” (Johnston). In 2016 and 2017, there were back to back bleaching events. According to CNN reports, “back to back bleaching events in 2016 and 2017 have devastated a 1,500 km (900 miles) stretch of the UNESCO World Heritage Site.” (Westcott). Before the 2016 bleaching event of the Great Barrier Reef, there have only been two bleaching events, 1998 and 2002. According the Hughes, “only 9 percent of the reef has avoided bleaching since 1998.” (Cave and Gillis). That means that over 90 percent of the Great Barrier Reef has been affected by coral bleaching at least once in the past 19 years.
Rates of coral calcification on the Great Barrier Reef and many other reef systems around the world have declined by 15-20% since 1990 due to increasing thermal stress (De’ath 2012). It has already been mentioned that the oceans absorb almost all of the excess heat from climate change. This affects coral reef systems in what is known as coral bleaching. The term bleaching refers to the loss of corals’ colors. A coral’s color is the result of the zooxanthellae present.
The coral reefs of the world need our help now. You do not have to be a marine biologist to have an effect on the reefs around the world. By simply conserving water, you can help limit the water runoff into the oceans. Limit the amount of emissions put off by vehicles by carpooling or taking a bus. Even though we may live thousands of miles away from a coral reef, we must use caution when adding chemicals to our lawns. Planting a tree not only reduces the amount of water runoff; it also lowers the earth’s temperature. Something as simple as spreading the word can have major
The leading natural cause of destruction among the coral reefs is global warming. Global warming causes the bleaching of coral reefs to occur. Bleaching is a response to stress by the coral reef that happens when the water becomes to warm. The coral then put out a brownish zooxanthelle which causes them to lose their color. Without the zooxanthelle, the corals cannot provide nourishment for itself and th...
The Great Barrier Reef is an exemplary model of the famous exotic coral reef seen in a copy of the National Geographic or the popular animated film Finding Nemo. Located on the coast of Australia, it is known as the “largest biological organism in the world” (“Human Impact on the Great Barrier Reef” par. 1). The idea bears that coral reefs are again not an assortment of organisms functioning separately but rather working together to thrive. The groups of coral that are seen in t...
Hard corals grow in colonies and are the architects of coral reefs. They include such species as brain coral and elkhorn coral. Their skeletons are made out of calcium carbonate (also known as limestone) which is hard and eventually becomes rock. Hard corals are hermatypes or reef-building corals and need tiny algae called zooxanthellae (pronounced zo-zan-THEL-ee) to survive. Generally, when we talk about "coral" we are referring to hard corals.
Coral reefs need to be preserved for many reasons. In this paper, I will discuss a few of them. First of all, they house a collection of diverse organisms, and contribute to fisheries which provide food items such as fish, crustaceans, and mollusks. Furthermore, coral skeletons are being used as bone substitutes in reconstructive bone surgery and may be able to provide important medicine, including anti-cancer drugs and a compound that blocks ultra-violet rays, they even help reduce global warming by taking carbon dioxide out of the air. These reefs provide a habitat for many species.
A coral reef is scientifically defined as limestone ridges that are created out of coral animals. These types of tiny animals are called coral polyps. Overtime, coral polys produce and accumulate into limestone. Inside the cracks and chinks of the limestone reside thousands of species. Since there are so many diverse species that live in the limestone, coral reefs make up some of the most diverse ecosystems on the Earth. These ecosystems can only function in clear, warm salt water, which is usually located in tropical regions. These reefs are usually located in shallow waters so that they are close to the surface. They are situated in this environment so that there is enough sunlight for photosynthesis which is important for the growth and development of the reefs.