Preview

The Role Of Coral Bleaching In The Great Barrier Reef

Satisfactory Essays
Open Document
Open Document
129 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Role Of Coral Bleaching In The Great Barrier Reef
During an El Nino, sea surface temperate (SST) rises, and right now we are in a very strong El Nino. This El Nino is playing a role in making this coral bleaching event so long and its effects will show in Australia. A new study was conducted and its results were not good: Coral bleaching in the Great Barrier Reef may be worse than what was originally expected. In this study, scientists looked at 27 years of NOAA satellite data for SST. In previous years, corals have become more resilient and tolerant to coral bleaching if they experienced short times of somewhat hotter temperatures. But now water temperatures are rising to a temperature that that would destroy the tolerance the corals have built up and would cause harsh bleaching.

You May Also Find These Documents Helpful

  • Good Essays

    The atmospheric processes encountered within the Great Barrier Reef are ultimately responsible for shaping the reef ecosystem. The reef, which lies within Australia’s cyclone zone, is subject to the impacts of cyclones throughout the Australian tropical cyclone season, which extends from the months of November to April. The intensity and duration of these intense low-pressure systems ultimately determines the level of damage inflicted upon the coral. These cyclones are not only associated with strong winds that generate large storm waves that rip apart the softer corals and chip the hard corals, but also bring with them large volumes of rain, which alter the salinity and turbidity levels within the waters. This ecosystem experiences relatively warm temperatures, which range from an average maximum of 30˚C in January and 23˚C in July, and an average minimum of 24˚C in January and 18˚C in July, and an increase of even just a few degrees Celsius can have detrimental impacts on this environment. It is understood that Tropical Cyclone Larry, which crossed the reef on March 2006, surprisingly benefited the reef ecosystem as it led to a reduction in water temperature, which in turn prevented a coral bleaching event that was predicted due to a rise in sea surface temperatures. Hence, the climate and weather systems present…

    • 948 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The Leeuwin Current

    • 1194 Words
    • 5 Pages

    References: The lower southwest of Australia. [Video]. (1999). Mann, K.H., & Lazier, J.R.N. (1996). Dynamics of marine ecosystems: Biological-physical interactions in the oceans. Nova Scotia: Blackwell Science. Skinner, B.J., Porter, S.C., & Botkin, D.B. (1999). The blue planet: An introduction to earth system science. New York: John Wiley & Sons, INC. Wells, N. (1986). The atmosphere and ocean: A physical introduction. London and Philadelphia: Taylor & Francis. http://www.marine.csiro.au/Leafletsfolder/oceansneed.html http://www.marine.csiro.au/Leafletsfolder/44leuwin/44.html http://www.per.marine.csiro.au/public/oceanography/regional/currents.html…

    • 1194 Words
    • 5 Pages
    Good Essays
  • Good Essays

    With the global climate changing so are the coral like many other things and sadly they are dying off because of the temperature changing. Which is causing coral reef bleaching which is when the whitening of diverse invertebrate taxa it is caused by when zooxanthellae decline and or the concentration of photosynthetic pigments within the zooxanthellae…

    • 1178 Words
    • 5 Pages
    Good Essays
  • Good Essays

    wrecked to have an effect on the Great Barrier Reef, however, as larger vessels passing…

    • 529 Words
    • 3 Pages
    Good Essays
  • Good Essays

    On-going climate change will have and has already caused many consequences for the Great Barrier Reef. This change will and has directly impacted many species of fish, invertebrate, mammals and birds along with many aquatic and terrestrial plants. There are also substantial impacts on the functioning of the reef. The biggest concern about climate change and the Great Barrier Reef is the rise in sea temperature which will affect the movement of water around the reef and the nutrient cycle on the reef which also means the chemical structure which will be altered because of the increased amount of CO2 dissolved into the water. With…

    • 1355 Words
    • 6 Pages
    Good Essays
  • Better Essays

    This is currently the largest and most biodiverse ecosystem in the world, spanning across 348 000 square kilometres of Australia’s Northeast coast. Starting from the top of Cape York (10 degrees 41’ S, 145 degrees E) 2300km down to just north of Bundaberg. Billions of coral polyps form the basis of this intricate biodiverse marine ecosystem, relying heavily on complex biophysical interactions resulting in its vulnerability. There a number of factors leading up to stresses placed upon this ecosystem in particular, human induced…

    • 1912 Words
    • 8 Pages
    Better Essays
  • Good Essays

    This sea is predicted as how the oceans of the planet will look like within the next century. The acidification that might happen throughout the oceans of the world is mostly caused by the carbon dioxide emitted from smokestacks and tailpipes. (527) Thirty percent of the carbon dioxide released by man has been soaked in the oceans. Many marine organisms cannot survive in these high carbon dioxide concentrated conditions. The evidence from Castello Aragonese proves that this polluted sea is missing thirty-three percent of marine organisms that live outside the vent system. Another significant organism of the chemistry of the ocean is the coral reef. Coral reefs are essential for the ecosystem of the ocean. Ocean acidification is a threat to their existence. According to Jane Lubchenco, ocean acidification is global warming’s “equally evil twin.” (qtd. in…

    • 1197 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Climate change has widespread effects. It doesn't just affect weather and temperature. It will also have lasting effects on the ocean and the ecosystems within it. Coral reefs get hit hard by the temperature of the water getting warmer. “Warming of as little as 1°C causes coral bleaching, a state in which the tissues of the coral become colorless because of the loss of the zooxanthellae”(Hoegh-Guldberg,Donner,pg. 9, par 3). This bleaching can stress the reefs and this can effect important functions of the coral. “Moderate bleaching results in stress that causes reduced growth rates and reproductive output, whereas severe bleaching results in coral death. Bleaching also appears to make corals more vulnerable…

    • 678 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Essay On Coral Reef

    • 693 Words
    • 3 Pages

    The coral reef normally has temperatures between 73 and 84 degrees Fahrenheit. The desert ecosystems temperatures range between 24.95 and 100.4 degrees Fahrenheit. These average temperatures are very different in many ways. Like the desert ecosystems lowest average is 24.95 degrees Fahrenheit and the coral reef ecosystems lowest average is 73 degrees Fahrenheit. Similarities in climate A similarity in climate is that they both have a pretty stable average throughout the day. These are all similarities and differences of the coral reef ecosystem.…

    • 693 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Coral reef systems cover approximately 284,300 sq. km and just under 0.1% of the ocean’s surface area yet they provide habitats for approximately 25% of all marine species (UNEP, 2001). Whilst the Great Barrier Reef is the largest coral reef system in the world, it is followed by other large coral reef systems including the ‘Mesoamerican barrier reef’ which stretches 1000km from the Yutacan Peninsula in south-east Mexico to the Bay Islands of the Honduras as well as the ‘New-Caledonia Barrier Reef’ which is the second largest duble barrier reef in the world (UNEP, 2001). Other large coral reef systems are also found the Bahamas, Philippines, United States as well various islands around the world. Whilst corals are found extensively across the coastlines of many countries they can also exist in deep water however very little is known about them.…

    • 1911 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    work cited

    • 976 Words
    • 4 Pages

    Warmer ocean temperatures are also now understood to cause coral bleaching. Rising levels of carbon dioxide (greenhouse gas emissions) are also decreasing the pH level of the ocean, known as ocean acidification. Evidence suggests that this will have a profound effect on the entire marine ecosystem.…

    • 976 Words
    • 4 Pages
    Good Essays
  • Good Essays

    In the article “ The Great Barrier Reef: a catastrophe laid bare “ by Michael Slezak talks about how global warming impacts The Great Barrier Reef. “Bleaching caused by climate change has killed almost a quarter of its coral this year and many scientists believe it could be too late for the rest.Bleaching caused by climate change has killed almost a quarter of its coral this year and many scientists believe it could be too late for the rest.” In 1929 thermal bleaching was recorded for the first time on the reef, throughout the next 87 years the reef was hit on numerous other occasions. “When the coral dies, the entire ecosystem around it transforms. Fish that feed on the coral, use it as shelter, or nibble on the algae that grows among it die…

    • 497 Words
    • 2 Pages
    Good Essays
  • Good Essays

    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 would be left without food or shelter. For these reasons and numerous others, it is vital that we protect coral reefs.…

    • 614 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Coral Reef Climate Change

    • 1291 Words
    • 6 Pages

    One of the most evident examples of climate change seen within nature can be seen the coral reefs. Coral reefs are one of the most divers ecosystems on earth, but are also impacted greatly by climate change. An excellent example of these can be seen by examining the dying coral in Great Barrier Reef. There have been multiple reports on the amount of dead coral, and these reported amounts depend on the regions reported, and vary from 35-93% of the coral is dead. Looking at the entire Great Barrier Reef as an entire system, over 22% of the reef has died, and this percentage is expected to rise further. Marine biologist and climate scientist have nailed down the cause of dying coral reefs to multiple causes, but the two most significant causes have been nailed down to the increase in ocean water temperatures, and the rise of ocean water levels. The NASA data analysis have calculated that global temperatures have increased by a global average of 0.8 ℃ since 1880 resulting in average ocean temperatures to rise. Due to this increase of global temperature, and a change of weather patterns, the polar ice caps have been melting at a rapid rate and have decreased significantly in size. This has caused the average ocean water levels to rise, which in turn increasing the level water above the coral reefs. When the water level increases above the coral reefs, less sunlight makes it down to the coral reef ecosystem. This greatly impacts the coral reef ecosystem, because much of this ecosystem is dependent on sunlight in the form of photosynthesis. Not only does warmer waters directly impact the health of the coral reefs, but it also increases the rate that algae can grow. A common example of rapid growing algae can be seen in the form of Red Tides. Red tides primarily consist of phytoplankton called dinoflagellates, which thrive in warm waters that are rich in nitrogen. These dinoflagellates are known to…

    • 1291 Words
    • 6 Pages
    Good Essays
  • Better Essays

    Coral Reef Research Paper

    • 1846 Words
    • 8 Pages

    Wilkinson, C. 2008. Status of the Coral Reefs of the World: 2008. Townsville, Australia. Global Coral Reef Monitoring Network and Reef and Rainforest Research Centre. http://coralreef.noaa.gov/aboutcorals/facts/coral_dependence.html (accessed April 2nd, 2011)…

    • 1846 Words
    • 8 Pages
    Better Essays