April 20, 2010 was the explosion and sinking of the Deepwater Horizon oil rig in the Gulf of Mexico that killed 11 people. Underwater cameras revealed the BP pipe was leaking oil and gas on the ocean floor about 42 miles off the coast of Louisiana. An estimated 3.19 million barrels of oil had leaked into the Gulf. Immediately after the explosion workers from BP, Transocean and government agencies tried to control the spread of the oil to the beaches and other costal ecosystems using floating boom to contain surface oil. Many scientists and researchers descended upon the Gulf region to gather data.
For example, there was an enormous amount of mercury being dumped in the ocean in the past when people were not aware about the impact the mercury would have to the marine life (Oceanus Magazine). Coastal sediments tend to have levels of mercury that was dumped years ago (ibid). Some mercury in the ocean can come from natural resources such as volcanic eruptions (ibid). On the other hand two-thirds of mercury in the ocean are from human activities (ibid). Also, according to, “How Did Toxic Mercury Get Into Fish?” it states that, “The biggest single source is the burning of fossil fuels, especially coal, which releases 160 tons of mercury a year into the air in the United States alone.
Still to this day, the Gulf War oil spill remains the worst disaster of its kind. This spill resulted in the death of over 10 thousand sea birds and threatened sea turtles and marine mammals in the surrounding areas (Baumann, 2001). The second largest oil spill was the Deepwater Horizon oil spill, also known as the Gulf of Mexico, or BP Oil Spill that occurred more recently in 2010. This oil spill was caused by a surge of natural gases resulting in the explosion of the Deepwater Horizon rig. The explosion occurred while workers were at the rig attempting to activate the blow-out preventer, this BOP malfunctioned and the rig exploded killing 11 workers and injuring 17.
Chemicals from industries and agricultural sites can run-off into the ocean. When the toxic chemicals from this and sewage get into the ocean’s ecosystem; it leads to reduction in oxygen levels, decay of oceanic plant life, and severe decline of the quality of the sea water. Toxic chemicals that get into the ocean raise the temperature drastically, this is known as thermal pollution. Marine animals that cannot survive in these higher temperatures will eventually
Oil spills cause many different issues to animals, food chains, and people. We need to help prevent oil spills. Oil spills have many effects on all kinds of animals. Oil destroys important features on animals. The NOAA states, “Oil destroys the insulating ability of fur-bearing mammals, such as sea otters, and the water repellency of a bird 's feathers, thus exposing these creatures to the harsh elements,” (https://oceanservice.noaa.gov).
Sediment erosion can affect coral reefs and oyster beds causing even more deaths. They also cause erosion on land, destroying most animal’s habitats and even leaving some islands underwater. Forests become destroyed and force animals to relocate, if they were able to survive the hurricane.
This is common for those that reside amongst red tides because they are constantly inhaling the brevetoxins in the atmosphere. Furthermore, neurological and gastrointestinal problems occur as a result of ingesting toxic shellfish, fish, molluscs, clams, and other marine life that have become infested by the brevetoxins. This leads to the different types of poisonings caused by fish, including PSP, ASP, DSP, and NSP, each having distinct symptoms according to the toxin they were produced by. Marine life has also been impacted by red tides, specifically by the harmful toxins that HABs produce, which has lead to the deaths of manatees, bottlenose dolphins,
The ocean is nowadays undergoing numerous environmental issues that further lead to marine pollution. Marine pollution is a very serious environmental issue that most of the countries of the world encounter. Aquatic littering is considered as one of the major causes of marine environment. The misleading use of the marine environment is extremely impacting the marine life and ecosystems. Moreover, the total amount of toxins and debris discharged by human beings is incredibly increasing in today 's world.
The morning of March 19th 1849, the news of an oil spill in the coast of Alaska spread through the United States like a wild fire. The damage caused by this horrific accident has said to be unfixable. This resulted in the spill of 260,000 to 750,000 barrels of oil. The vessel was going a route that was outside of the normal lanes in order to avoid ice. In the six hours of grounding, the Exxon Valdez spilled 10.9 million gallons of its 53 million gallon cargo of Prudhoe Bay Crude, 8 out of the 11 tanks on board were damaged.
The coastal margins are seen to be potential sources of hazardous trace elements, as the effluents are discharged into waterbodies and finally flushed out to the open ocean. About 17104 m3/day of effluents reach the Sea from various small and large scale industries situated along the southwest coast (Udayakumar et al., 2014). The symptoms are there to show considerable impact of deterioration of estuarine waters on the coastal ecosystem (Jayakumar et al., 2001). Hence, determining the level of metals in the coastal margins could provide a better understanding of possible sources, ecological risk, and transport
You all have been hearing don’t pollute your whole life, but it still happens. Pollution is a huge problem especially in the ocean, the ocean plays a vital role to our survival and with all polluting it, it causes problems for us in the long run. Pollution causes a lot of damage to the ecosystems that live in the ocean and the ocean itself. When the oil spill happened in the Gulf of Mexico that was a bad disaster, that was man made that hurt an ecosystem in ocean. All that oil spread throughout the ocean causing a lack of sunlight to penetrate through the water deep making it hard for plants to grow and or prosper.
Overfishing is certainly an environmental issue because it affects the planets ecosystem due to human interference. One example of this is when a marine species is exploited, other species are also affected directly. According to the article, ‘Global Consequences of Overfishing’ states that, “...recent studies suggest that overfishing of large shark species has had a ripple effect in the shark 's food chain, increasing the number of species, such as rays, that are usual prey for large sharks, which result in declining stocks of smaller fish and shellfish favored by these species” It is also important to mention that overfishing often leads to the killing of other animals unintentionally. This is called bycatching. Some marine species that are affected by bycatching are juvenile fish, bottom feeding organisms, sharks, whales, sea turtles, and birds.