The Destruction Of Coral Reefs

Corals build colonies that secrete calcium carbonate to form ocean reefs. When they're healthy, coral reefs provide shelter and food for animals all along the food chain, including the top: us. Across the planet, half a billion people rely, directly and indirectly, on corals for their living. That's why what happens to the 9,000-year-old Great Barrier Reef, as well as to other reefs worldwide, is critical. The floods in Queensland have hurt the Great Barrier Reef by funnelling into the ocean vast plumes of freshwater and agricultural runoff that could severely damage the coral. Besides the extreme rain that sparked the floods, rising ocean temperatures, changes to the ocean's chemistry and the global trade in natural resources — all symptoms of our fossil-fuel economy — are waging a multiform war on the marine

A case study that was carried out a few years ago states that since 2005, the caribbean region has lost 50 percent of its corals, mainly due to the effects caused by the increase of temperatures. From 1997 to 1998, mass bleaching is estimated to have caused severe effects to 16 percent of the world’s coral reefs. Even though signs of recovery have been seen in

The ocean is two-thirds of our planet a vast blue landscape home to many biomes which according to Boyce Thorne-Miller “(ecosystem types) corresponding to sets of environmental conditions that vary with depth, latitude, and longitude” (16). However, the ocean and its biomes is under attack from the changing environment. We can see this through coral reef biomes as they make their home near the shores. Through coral reefs we can view the effects that these changes have on the ocean through how the coral reef biome is affected. Humans are a danger to the coral reefs and the wildlife that resides in the biome. The pollution being released into the environment is poisoning the coral and causes death and malformation to the wildlife. The ocean is changing due to global warming which is causing a change in the temperature and rising water levels leading to a change in the stabile areas coral can survive. The increasing acidification of the ocean is causing the coral reefs to die. I will be looking at the effects these issues cause to coral reefs biomes and the ocean to see the similarities in how they affect both.

"Coral reefs… are fragile structures living within a narrow range of temperature, clarity, salinity and chemistry. Even a slight increase in ocean temperature, or increased CO2… can cause stresses such as bleaching… These stresses slow the rate of growth of the corrals… With some 60 percent of the world’s coral reefs now losing productivity, it’s becoming a global crisis and a scientific mystery."

Bleached corals have reduced growth rates and have an elevated mortality rate. Coral bleaching also affects species such as fish and invertebrates that depend on living coral for food and shelter. Changes in the population and composition of reef fish occur when the corals they utilized are killed as a result of coral bleaching. Reefs affected by coral bleaching lose the aesthetic appeal that is fundamental to reef tourism. This aspect is highly relevant to the Great Barrier Reef because it is a popular tourist destination. It is estimated that the current bleached state of the Great Barrier Reef will cause Australia a loss of $1 billion in tourist income. Finally, coral reefs can be farmed for pharmaceutical compounds used to treat heart disease and cancer among other diseases. Bleached and dead corals are far less likely to provide these

This is an explanatory synthesis on the impacts of climate change on coral reefs. Climate change is affecting coral reefs in a negative way. Due to the increase of sea temperatures, coral reefs are becoming bleached. When a coral reef becomes it causes them to expel the algae, leaving the corals white1,2,3,4. In the essay, “A framework for understanding Climate Change Impacts on Coral Reefs” by Joshua Clinner (2016), he addresses that when coral reefs become bleached they have reduced growth rates. The article, “Five Species We Stand to Lose if Coral Reefs are Destroyed and What You Can Do About it” by Jenna Bardroof (2014), emphasizes that coral bleaching is a serious threat to coral colonies and specific mammals

Irreversible destruction is occurring to our coral reef system. The majority of this destruction is caused by the human race. It is important that the people of the world come together to determine how to keep our precious resources in tact for future generations.

Worldwide we are facing an epidemic of large-scale Coral Reefs bleaching themselves white. Although white coral is not dead it is likely to die shortly after bleaching. The main problem is global warming, this causes overfishing, pollution and rising ocean temperatures with more acidity. Global warming is an issue that affects our planet, especially in the ocean. This problem has also an economic and political impact because "If the reefs vanished, experts say, hunger, poverty and political instability could ensue."

The article, Warming Bleaches Two-Thirds of Great Barrier Reef , talks about how Coral reef ecosystems around the world are threatened by human and climate change. The waters of the ocean are raising due to global warming, in turn

The coral reef’s ecosystem are in major threat of the current bleaching events. Coral reefs are the main marine environment, which includes a variety of over 4,000 fish, and 800 different type of hard coral (“Corals”). Over 25 percent of marine animals are supported by the coral environment (“Coral Reefs”). The reefs are a key element of the ocean’s ecosystem (“Coral Reef Destruction”). Water temperatures are estimated to keep rising in the decades to come, which intensifies coral bleaching and other problems like black band disease, and white plague. These illnesses cause a majority of the coral to die, which will then lead to their ecosystem to plummet (“Global Warming”). Research as estimated that one to eight million organisms are yet unknown to scientists

“Coral reefs are extremely important for biodiversity, providing a home to over 25% of all marine life. They are also vital for people and business. They provide nurseries for many species of commercially important fish, protection of coastal areas from storm waves, and are a significant attraction for the tourism industry”

David Attenborough, a well-known naturalist, introduce us to our modern day “Darwin,” J.E.N. Veron, a former chief scientist whom is the world’s greatest scientific authorities on corals and coral reefs. Veron who has lived and worked on the Great Barrier Reef for most his life has discovered over 20 percent of the known coral species today. And today, he gives us an insight on why the earth’s reefs face a likely mass extinction within the lifespan of the younger generation. During his time as a scientist, he researched particularly on the diversity and evolution of the world’s corals and became aware of their troubles. He then began his studies on the analyses of previous reef extinctions and accrued more evidence of the effects of changing sea levels, temperature stresses, predation by crown of thorns starfish, and human influenced changes in nutrient levels. Veron had witnessed his first patch of coral bleaching off the Great Barrier Reef’s Palm Island in the early 1980s, a tiny clump of white skeleton. Everything started turning white and dies, it was the fast-growing branching corals, but some of the others were horrible to see. After witnessing the mass bleaching, the global damage confirmed a close connection with El Nino weather cycles. By being susceptible to increases in heat and light, corals were alerting scientists to climatic changes. When corals are exposed to temperatures two or three degrees hotter than their evolved maximum, along

Perhaps one of the most significant anthropogenic factors contributing to reef system collapse is not directly attributable to the practices of people within the Bahamas, but the people of the world as a whole. As industry grows stronger, fossil fuels continue to burn at exceedingly high rates, consumption reaches all time highs, and unsustainable livestock practices continue to emit high levels of methane, climate change has caused an increase in temperature worldwide. This increase in temperature has been largely absorbed by the Earth’s oceans, causing them to rise in temperature as well. Since 1880, ocean temperature has increased by 0.65 to 1.06°C. In the next 50 years, it is predicted that ocean temperatures could reach an increase up

There was a recent research expedition around the Coral Sea, which contains the Great Barrier Reef observing how much coral bleaching is happening. Coral bleaching is the process where the coral expels a symbiotic organism within its tissue, causing the coral to lose its color, stop growing and most likely die. This bleaching that is occurring as a result of rising global temperatures and has only started occurring in the late 20th century. Of the over 500 reefs analyzed during this expedition, only 4 showed no signs of bleaching, and the bleaching has close to a 50% mortality rate for the coral. The article I linked discussed the potential economic impacts this might have, relating primarily to tourism and fishing. With regards to tourism,

The deterioration of coral reefs is mainly linked to human activities – 88% of coral reefs are threatened through various reasons as