They break down dead biological matter and waste products and convert them into useable energy; returning important materials to the environment. Decomposers are a particular important feature in the Great Barrier Reef considering the heavy bio-load. Main decomposers inside the reef include bacteria, sea cucumbers, some species of snails, crabs and bristle worms. Bacteria sis not only vital for the Great Barrier Reef’s food web, but is also said by scientists that it could be the key to keeping the coral healthy and able to withstand the impacts of global warming. Dr Tracy Ainsworth stated “it is very likely that these microorganisms play a vital role in the capacity of coral to recovering from bouts of bleaching caused by rising temperatures.” Corals rely on these good bacteria’s crucially although we don’t yet understand these microbe’s ell enough to know how they influence coral survival, which is vital in maintaining the food web of the Great Barrier Reef.
From the sociological perspective, it was a huge social, cultural, economic and psychological threat for the communities living across the coastlines, cleanup workers, and especially children. Firstly, oil was released into the sea; it spread out on the surface of the water and contaminated the sea and coastlines. Statistics had shown that the Gulf oil spill killed 3,902 birds, 517 turtles, 71 marine mammals and more than thousands of other wildlife animals under the sea are covered by oil during or after the disaster (Merchant, 2010). Besides, the contaminated
Debbie was the most harmful of these storms killing 14 residents of Australia. Cyclone Debbie packed very strong winds as well as a very large amounts of rain smashing down towards the Australian coast. The Great Barrier Reef suffered massive amounts of damage as a result of Cyclone Debbie. Much of the corals were broken and marine life had been harmed. Cyclone Debbie left deep holes in the nations pockets.
As people have to be hired to clean up, and people not wanting to go to dirty beaches. Cost money to people working at the beach.This problem doesn’t just occur in the Persian Gulf, it occurs world wide. A study from the university of Georgia, February 3rd 2015, claims that about 8 million metric tons of plastic trash enters the ocean every year. Pollution in the Persian gulf is negatively impacting marine life, as oils spills occur, and ocean mining is at it’s peak, but most importantly sewage dumping. Believe it or not we are all a witness of watching someone litter, or us littering.
Natural disasters such as earthquakes and tsunamis can have a devastating effect on the coral in that area. The 2004 tsunami in south East Asia completely obliterated everything in its path, destroyed hundreds of ancient coral reefs (anthozoa) in these tropical waters. Many species of coral, such as the stag horn coral; a hard species of coral that branches out to look like deer antlers, are today classed as an endangered species due to the severe decrease in the corals range. How viable are the artificial coral reefs (anthozoa) in replacing the natural reef environment? What are its advantages and disadvantages?
Historical View of Coral Bleaching Coral bleaching events have become severe issue in the past twenty years. The increase in water temperatures due to climate change and the increased pollution by humans are some of the main causes of increased coral bleaching events. Coral bleaching is the whitening of the coral due to increased stress. The bleaching process causes the coral to have an increased susceptibility to infections and other external factors. This leads to the ultimate death of the coral and the homes of many sea creatures.
Negative Effects of Ocean Pollution “Each day, oil used to lubricate engines and to power the vessel leaks into the ocean” (Wroble 44). When the residue enters the ocean, it begins to affect the environment and animals. This is just one of the many problems from ocean pollution. “According to Worldwatch research associate Peter Weber, 80 to 90 percent of all of the materials dumped at sea are dredgings...dredgings are rich in toxic chemicals...from nonpoint sources” (Wroble 49). One particular chemical that affects the oceans are Polychlorinated Biphenyls, or PCBs.
Loss of coral reefs would be devastating to one of the most grand pools of biodiversity in the whole world They help seed the oceans and provide food to a complex web of organisms that lead all the way to man. They act as natural barriers to shorelines, and as they die, coastlines become more susceptible to damage and flooding; tropical storms and high waves would be the ones that could make the most damage if coral reefs were to disappear. Of course, not only we are the ones to be damaged by this, but other animals in the marine ecosystem too, like sharks. Sharks work in the ocean and in coral reefs by cycling nutrients between it and the open ocean, removing invasive species, and getting rid of weak fish carrying disease; if coral reefs were to disappear, then sharks would lose one of their main ways to obtain food and nutrients. And as we all know, if one animal disappears in an ecosystem, the organisms that consumed them would die and affect the food chain so
One difference was in the movie “The Lorax” the Once-ler was using technology. He polluted the air with gases which caused the animals to leave. The Once-ler also polluted the waters which caused the humming fish to leave also. As for the Polynesians on Easter island did not have technology so the used trees. Since the Polynesians deforested their island they ate all of the birds and fish on the island later moving to cannibalism.
Grazer species Grazer species are especially important in coral reefs. Their principal tasks include the modification of primary production to fish-based trophic pathways, the mediation of competition between corals and microalgae, and the provision of an appropriate settlement base for new corals (Hughes 1994). Thus, coral reefs without grazer species often end up covered by algae. Due to the degradation of coral reefs, populations of reef fish that perform key ecological functions such as grazer species decline, which then initiates a positive feedback and causes more coral reef degradation (Pratchett et al. 2014).