This year, scientists are making extra efforts to teach people about coral reefs and what threatens them. Why are experts concerned? Coral reefs are delicate. Overfishing and pollution can harm them. They can also be affected by changes in water temperature caused by occurrences like global warming.
Hence, overfishing threatens coastal nations down to the local level, devastating communities whose dominant sources of labor and revenue hinges on healthy, plentiful stocks of fish. Also, marine life imbalance may affect the targeted fishing of top predators such as billfish, sharks and tuna that eventually disturbs marine communities. In fact, it is causing increased abundance of smaller marine animals at the bottom of the food chain. This in turn has impacts on the rest of the marine ecosystem, such as the increased growth of algae and threats to coral reef health. Overfishing is also closely tied to by catch, another serious marine threat that causes the needless loss of billions of fish, along with marine turtles and
This proves that another environmental threat that blue crabs faces are fishing because they may not be a type of fish, but, like most crabs, they are fished, caught and sold. This allows overfishing to be a problem. Not to mention, another environmental threat that this fascinating animal, the blue crab, faces is climate change. Corresponding with the text, “Climate change is another major threat to life in the oceans. Warming ocean waters, rising sea levels, and violent storms disrupt the lives of many species and affect fragile marine ecosystems,” (Digan 14).
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.
Coral bleaching is when the animals that build the coral shed the algae that give them their color and is necessary for survival. Coral bleaching is suspected to happen by two different ways. The first is due to warmer water. The coral needs to be in certain temperature in order to maintain its life. The second way is due to pollution.
Ocean acidification leads to a reduction in the amount of carbonate ions in the water. Many marine animals essential carbonate ions for the calcium carbonate essential to form skeletons and shells. This will disturb their development and ability to reproduce – ultimately threatening their populations.. Falling numbers of less well-known species, like pteropods – tiny swimming snails – have important effects further up the food chain. Pteropods are important sources of nutrition for many types of fish, whales and birds in polar and sub-polar regions.
Bleaching is a generalized term for the loss of symbiotic dinoflagellates, or their pigments, in stony corals and is typically associated with sustained, unusually warm water temperatures (Hoegh-Guldberg, 1999), particularly when it occurs over a large geographic scale. Bleaching events can change colorful vibrant coral reefs into pale rocky graveyards, ominous shadows of possible future
The topic of this research paper will cover over Ocean Acidification and the effects on marine ecosystems. Ocean acidification is the decrease in pH levels of the Earth 's oceans, due to overbearing carbon dioxide being brought by the atmosphere. The carbon dioxide is drawn by seawater, where the chemical reactions take place, which minimize the pH levels in the ocean, the carbonate levels and the important calcium carbonate which these sea creatures need. When carbon dioxide disperses in this ocean, it causes the levels of acidity to rise towards the the surface, where most shell growth in marine animals have been stopped and has created the cause of reproductive disorders in multiple fish. Part of the problem with ocean acidification is human activity.
Moreover, the total amount of toxins and debris discharged by human beings is incredibly increasing in today 's world. Most of the waste produced on land is either intentionally or unconsciously discharged into the oceans. Marine pollution and aquatic debris can utterly destroy the oceans causing extinction of the marine creatures. Innovative techniques should be implemented in the law to prevent the marine environment from any further damage. In order to improve the marine environment, the government and the Environment Public Authority of Kuwait should take immediate actions that can influence the society and help in minimizing aquatic debris and pollution.
In November, Hurricane Mitch, blew in and tore away part of the reef leaving behind some corals, known as the “standing dead”. After that, El Niño came along and brought warmer water than usual which parched the reef to death. This led to coral bleaching and a 48% decline in coral cover. Introduction Coral reefs are an island’s protective mechanism, and are one of the most diversified ecosystems in the aquatic system. Its richness is comparable to tropical