The sea animal cannot adjust to these changes in the ocean due to global warming. Pollution is another big problem that is threatening our ocean. The ocean has become a dumping ground. These toxins are affecting the ocean in a harmful way. This is also hurting sea life.
The ocean dwellers are virtually helpless, and they will ultimately have to suffer the consequences that have been created mainly by humans. Over the past few years there has been a significant change in marine life. Coral reefs are becoming endangered due to high carbon dioxide levels and effects of warming. Large predators, small fish, and other organisms make their homes in coral reefs. A process called mass bleaching has also become a danger to coral reefs.
The release of a liquid petroleum hydrocarbon also known as an oil spill has a large negative effect on the ocean. Oil is commonly used by individuals however often oil can be a problem to organisms and their inhabitants. Oils spills are a form of pollution and there are various sources of oil in bodies of water. There are several scientific solutions for oil spills, as well as possible ways to prevent this harmful pollution. In 2010 ,172 million gallons of oil spilled from a whole on the ocean bed in the Gulf of Mexico.
Besides global warming there is another problem with this beautiful structure and that is the result of several local natural and human factors such as over fishing. Silt from deforested lands and pollution from crowded coastlines choke them, and overuse and destroy coral reefs. There are many other factors which if they are not stopped it will destroy all coral reefs. Corals are animals, not plants; sunlight is the key to their survival. They need it to power the millions of microscopic algae, called zooxanthellae, that live in their tissues.
October 9, 2012 “Great Pacific Garbage Patch” Today’s society is facing a big problem with pollution, probably when we talk about pollution you just think about air pollution. But Captain. Charles Moore of the Algalita Marine Research Foundation discovered the Great Pacific Garbage Patch. The Pacific Garbage is an endless floating waste of plastic trash, that is killing many sea animals and underwater vegetation, but Captain Moore mission is to draw attention to the growing, and choking problem of plastic debris in our seas. The Great Pacific Patch stretch for hundreds of miles across the Pacific Ocean, basically the North part is forming a floating junkyard.
The production of these toxic-filled substances continues to lead the human race on a path of natural destruction; with thousands of animal sea-life dying annually from plastic consumption. It's time we wake up to the fact that our oceans are in need of critical help. How did the plastic get into our oceans to begin with? The oceans are enormous but they are not infinite. Today, as in the past, oceans are being treated as giant disposal areas for all types of refuse (plastics, tins, bottles etc.)
Humans have been known for destroying coral reefs through unlawful fishing habits. Cyanide fishing has been classified as a destructive fishing practice, yet is still being used in our oceans today. The destruction of coral reefs is greatly due to the fact that many people are unaware of a number of things. Such as the what coral reefs are, the key role they play, what cyanide fishing really is as well as the negative effects the fishing will cause. Occupying less than one percent of the ocean floor, coral reefs are home to over 25% of all marine life.
The large population centres near coasts has led to silting of reefs, pollution by nutrients that lead to algal growth that smothers the coral, and overfishing that has led to increase in number of predators that eat corals. Warming of the ocean causes corals to sicken and die. Even a rise of one degree in the average water
Since fish is the main target of mercury contamination, humans are at a lifethreatening risk by toxic effects mercury. Thus, production of toxic methyl-mercury in the upper ocean due to bio-accumulation and build-up of this poisonous compound in marine food web due to bio-magnification is of a vital concern for the humans. Study of marine biochemical cycle of mercury with its potential sources and sinks is really necessary to find effective remedies to diminish the dangerous effects of this shiny-white metal. This review presents biological and physical processes that drive biochemical cycle of mercury in the global oceans with the potential sources (such as river, atmosphere, sediments, and hydrothermal vents) and sinks (such as bioaccumulation in marine fish, and scavenging due to sinking particles). Spatial, vertical and temporal variations of elemental mercury and human exposure to deadly effects of methyl-mercury are also presented in this study.
The Consequences of Overfishing Overfishing has been identified across the world as a prominent environmental issue. Fish and other marine animals, such as sharks, sea turtles and dolphin, are retrieved from the oceans through indiscriminate fishing practices at a rate that cannot be sustained by natural reproduction (Jackson, 2001). Systematic overfishing with bottom trawling, dredges, and drift nets depletes the ocean of innumerable species at an alarming rate and alters the ecological balance in marine environments. The actions of shortsighted commercial fishermen have brought tremendous adverse environmental and economic consequences upon the entire world. The continuation of unrestricted fishing will worsen world hunger among impoverished coastal communities, many of whom depend on the abundance of fish to feed themselves and their families, and result in ultimate environmental chaos and the extinction of thousands of In recent years, the demand for fish, a healthy food rich in omega-3 fatty acids and lean protein, has sky-rocketed.