Coral bleaching is not just a national problem that Australia faces alone. In the last year (2015), 12 percent of the world’s coral reefs have bleached (Howard). Since the Great Barrier Reef is the world’s largest reef, covering 133,000 square miles, and stretching 1,200 miles along the coast of Australia, it poses an incredible threat to Australia’s economy and environment (Howard). Coral bleaching is not an issue that is often plastered all over the news or brought to people’s attention often. Coral Reefs, especially the Great Barrier Reef are seen as the perfect tourist destination because reefs are known for their wide variety of marine life and beautiful bright corals one would see on brochures. However, when a coral is bleached, it loses
Temperatures reaching highs of 30 degrees Celsius, we expected nothing less, summers have been getting unbearable and winters are nothing to what they used to be. Today started with a warm, gentle breeze with off and on rainfalls this type of weather was typical.
The population of the largest and most significant vertebrate plants feeds, including sea turtles, dugongs, have been severely decimated by the impacts of humans on the reef. The loss of these vital animals has and will more severely disturb the coral reef food web in a significant manner, although the specific impacts are not clear
Pollution, tourism, and mining have all had a huge negative impact on the reef. Coral reefs in the Caribbean have also been significantly affected by human interaction due to the growth of population and more people living closer to the reef. This is causing many impacts such as loss of fish and coral etc. Coral reefs in the Caribbean are slowly disintegrating due to coastal development which increases fishing, pollution, agriculture use and
“In 2005, the U.S lost half of its coral reefs in the Caribbean in one year due to a massive bleaching event”(National Ocean Service). Another article states that in January 2010, cold-water temperatures in the Florida Keys caused a coral bleaching event that resulted in some coral death. Researchers have evaluated the cold-stress of the water will make coral more susceptible to disease, in the same way warmer water impact coral. Luckily there are things that we can do to help stop this
The Great Barrier Reef is actually the largest living thing on Earth. In fact, it can even be seen from space. The only problem with reefs is that they can only survive under a certain temperature range. If the temperature is too low or too high for the reefs, this causes the algae, which gives the coral their beautiful and bright colors, to leave the coral, and therefore causing the coral to become bleached (National Ocean Service). This is exactly what has happened this year.
Although the impact on reef fish is still uncertain. It is however, known that reef fish are losing habitats due to the impacts on corals. The wellbeing, reproduction and overall health of fish due to chemical runoff over time, is still being investigated (Amelia S. Wenger, 2015). Research has identified that chemical runoff is increasing nutrient levels in the water. It is believed that this increase in nutrients is connected to the increase in crown of thorns starfish population, which poses another threat to the reef by impacting coral cover (Amelia S. Wenger, 2015).
Therefore, the impact of overfishing and illegal collecting of coral may destroyed the social and economic well-being of the coastal communities who depend on fish for their way of life. Beside, it is also direct overexploitation of fish, intertebrates, and algae for food and the aquarium trade, removal of a species or group of species impacting multiple trophic levels, bycatch and mortality of nontarget species, and change from coral to algal dominance due to reduction in herbivores (Reef Resilience Organisation,
When the water of the sea becomes warmer due to higher temperatures which diminishes the oxygen content, the coral expels the algae that exists within their tissues causing it to turn completely white. This results in coral bleaching. Thus, the elevating heat stress which results from high sea temperatures serves as the main factor that induced damage to the coral reefs. If the heat prevails, the reef may even die instead of recovering. Coral reefs provide home to a significant number of sea species and coral bleaching causes their habitats to destroy completely and effect the marine life adversely.
These banks contain coral rubble, seagrass and macroalgae with other invertebrate taxa, which play a key part in the ecosystem. The bank systems contain essential fish habitats, which provide sheltering and foraging grounds. Past studies have indicated these fish assemblages showed a high diversity and biomass of coral reefs. Most of the biomass in the Florida Keys ecosystem is made up of species that stay in channels for most of the day. These signs show that the bank systems are important for the FKNMS for providing a structural support and high productivity for the biodiversity.
In this research paper we will explore more about coral reefs and their importance. Coral reefs are communities of living organisms. They are made up of fishes, plants, and many other creatures. They have been around for millions of years: less than the 0.1% of the world’s ocean floor Is covered by coral reefs, however they grow very slowly, from 0.3 cm to 10 cm per year.
The first Scientific Method step used was observing. In paragraph 2 in"Coral killer on the loose" it states, "“Between 1996 and 2012, more than half of all corals in the Florida Keys alone had died,” says Porter". This means that Scientist observed that the corals were dying because more than half died alone. In paragraph 2 of "Coral killer on the loose" it states,"The species has disappeared from more than 90 percent of its former habitat".
The cell death leads to the expulsion of the zooxanthellae from the corals, which eventually will lead to coral bleaching. Zooxanthellae give corals their color. Symbiodinium are responsible for the majority of coral’s energy (Berkelmans 2006). A coevolutionary relationship is necessary for coral reefs to thrive. This symbiotic relationship is effective in recycling nutrients and using light (Berkelmans 2006).
Growing up, I often found inspiration snorkeling in the Florida Keys. Each trip, I entered an ever-changing resilient ecosystem of vibrant, vivacious sea life. However, in recent years, nonnative lionfish have invaded the entire East Coast devastating our coral reefs. Because they have no natural predators in the Atlantic Ocean, lionfish have almost completely depleted our oceans of juvenile fish, creating a major food shortage for native fish. If no action is taken, the future of our coral reefs over the next 50 years looks alarmingly grim