[checker]

Plastic pollution causes a threat to marine ecosystems. Species, both plants and animals, adapt to their environment. A new natural balance is created time and time again. Plastic in the environment upsets that balance. Plastic pollution has arisen in just a few decades and is increasing rapidly. Animal species simply haven’t had the chance to learn how to deal with it, for example by avoiding plastic or by living on it. A species may also be more vulnerable to plastic than another, which disrupts their interdependence.

[susisusan]

The common periwinkle, a sea snail, is on the menu of the crab. Normally the periwinkles defend themselves by withdrawing into their shell as soon as they detect the presence of a crab. Research has now shown that this defence mechanism is impaired or no longer works because of toxic substances from microplastics, due to the pollution of its ecosystem. The chemical substances that bind with plastic in seawater, or that leak out of the plastic, paralyze the defence mechanism of the periwinkle. This means that attacking crabs can no longer be detected in time.

[Drifter]

Another study into the threats on marine ecosystems looks at the threads of mussels. Mussels attach themselves to the ground, rock or rope, using thin threads. These byssal threads are exceptionally strong and elastic and can withstand currents and waves. The mussels are also attached to each other with these threads, creating mussel beds. Mussel beds are of great ecological importance. Blue mussels that had been exposed to polyethylene microplastics for almost two months lost their grip. In fact, the strength of their byssal threads decreased by half. These exposed mussels also produced significantly fewer threads. When, as a result, the mussels are washed away, it has a negative effect on the biodiversity of the beds and causes a threat to the marine ecosystem.

[johnsmith01]

[scepticus]

Global warming is alarmingly increasing seawater levels, threatening the marine ecosystem. According to reports, the annual rate of seawater rise during the past two decades has been 0.13 inches a year, which is around twice the average speed of rising over the preceding 80 years. Thus, it is high time that we educate ourselves about the causes and effects of seawater level rising to save the marine environment and biodiversity. The rise in seawater level means more wetland flooding, destructive erosion and agricultural land contamination and more importantly a serious threat to the habitat of several plants, fishes and birds. here

[lillykira]

5. Ocean Acidification here

[stbri]

In this world of ever expanding industrial activities, dredging is an important activity that enhances marine transportation and other related activities. However, dredging has been a major cause of disturbance in the marine ecosystem for many years. As dredging is to remove the deposits submerged underwater, the activity alters the pre-disposed composition of soil, leading to the destruction habitat of creatures and organisms. Similarly, dredging of contaminated materials will result in the regrouping of harmful particles and contaminate large of areas of water bodies. Though steps have been taken to mitigate the effects of dredging on the marine environment, several cases involving the destruction of underwater lives are still extensively heard about. more

[destine]

Dumping of waste materials from industries, ships and sewage plants into oceans has polluted the marine ecosystem to a great extent. As mentioned earlier, for years the oceans have been targeted as a dumping site of sewage, chemicals, industrial waste, garbage, and other debris from the land. According to reports, only mining companies across the world dump 220 million tonnes hazardous waste directly into our waterbodies every year. Similarly, it is important to note that around two-thirds of the marine lives in the world have been under threat from the chemicals we use every day, including household cleaners. Since we depend on the marine ecosystem extensively, the adverse effects of ocean dumping have not only been felt by marine life but by humans as it poses health risks.

[Anaxagoras]

No discussion on marine environment can come to a conclusion without mentioning the biggest cause of marine pollution – oil spills. The world has witnessed several oil spill disasters that have been one of the major concerns of pollution to the marine environment. Disasters such as the Exxon Valdez Oil Spill and Deepwater Horizon etc. have resulted in the extreme pollution of the marine ecosystem, killing thousands of marine species. The oil spilt destroys the insulating ability of several marine species and also the water repellency of bird’s feathers, exposing these creatures to life-threatening risks.

[marketmaker]

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[Nevezen]

Tourism can cause pollution as any other industry; air pollution, noise, emission, littering and many more. Noise pollution from airplanes, cruise ship, cars or buses causing annoyance, stress and even hearing loss to marine mammals, especially in sensitive areas. [links]

[bitcoin]

Besides it also can have damaging effects on marine habitats, such as coral reef and seagrass destruction. The impacts of marine debris are not only for ocean ecosystems. The impacts go through to human health, consume fishes that contamination marine debris that make the threat to a human. here

[eugene2k]

Fishermen are one of the livelihoods that until now still in demand. However, some of them in catching their fish do things that even destroying marine ecosystems, such as using trawlers or fishing by boat with large nets that lead to overfishing. Do overfishing will have an impact on humans and marine ecosystems. What will happen? If humans do overfishing with certain species, this will make the fish is a threat of extinction.

[tfoote]

So, what else threats to ocean ecosystems? Our behavior in daily life can make threats to ocean systems, below here is activity in our daily life and it can be threats to our ocean ecosystem. They are :

[Nevezen]

Coral bleaching is one effect of ocean acidification or global warming. If this happens, it does not only have negative impacts on coral communities but also fish and human communities. Coral changes also affect the species that depend on fish and invertebrates that rely on live coral for food, shelter or habitat. The coral changes make species killed and increases mortality rates. You may want to know about Causes of Coral Bleaching.

[MartinaIgnatius]

Where plankton plays an important role in the food chain and oceanic carbon cycles. Several studies have shown that ozone depletion is more likely to change the composition of living organisms at sea level rather than reducing their overall mass. In addition to plankton, a number of young fish, shrimp, and crabs are also threatened due to ozone depletion.