Effects Of Marine Pollution

Filed Under (Marine Pollution) by admin on 03-06-2010

Marine pollution is a diversified term. Several factors have bent the present dilapidated state of the sea. Sources are numerous but the solutions are hardly any. Because oceans are part of the food chain, marine pollution affects wide spectrum of species, including humans. Ocean and human life is so inextricably interwoven that the special effects of marine pollution are severely able to be seen on human life.
Untreated or in part treated sewage waste matter, or in nature rich industrial waste matter such as that from fish dealing out plants, present a number of problems. Decompose of organic matter causes a drop in dissolved oxygen, particularly in calm weather and secluded bays. This can cause the death of marine plants and animals, and possibly will lead to changes in biodiversity.

Effluent, well-off in nitrogen and phosphorus, results in over fertilization, which may cause algal blooms. These blooms can discolour the water, choke fish gills, or even be poisonous. Pathogenic microorganisms cause gastric, ear-nose- throat infections, hepatitis, and even cholera and typhoid. Filter feeding flora and fauna like clams and oysters concentrate pathogens in their gut, so eating shellfish from polluted waters is a fitness risk.

Oil spills choke plants and animals, preventing respiration. In seabirds and mammals it can be a major cause of a breakdown in their thermal padding. Chemical toxicity can reason behavioral changes, physiological damage, or impair reproduction. Oil pollution is an eyesore, and cleanup and consequent disposal of oily wastes is complicated. Tar balls formed due to the coagulation of oil, water, and other wreckage is washed onto the shore, causing harm to human and coastal life that relies on the water and beaches for food.

Pesticides, such as DDT, and other persistent chemicals build up in the full of fat tissue of animals. These chemicals can cause reproductive breakdown in marine mammals and birds. These substances percolate into water and, in high traffic areas such as harbors and marinas, can have an effect on animal life.

Plastics kill many marine animals. Turtles, for example, often gulp down floating plastic bags, mistaking them for jelly- fish. Animals are often strangled when they become entangled with plastic debris. Different parts of the oceans have different inhabitants. Thousands of gallons of water, along with any local species in the water, are transported by ships in their weight tanks. When the water is on the loose in a different area, the foreign group in the transported water can take life off local species.

Marine pollution is a well-known problem to most, but the long-lasting effects it creates is a little beyond doubt to be considered soon.

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