Another thing that effects the blue crab 's ecosystem is its environmental threats. To begin, one of the environmental threats that blue crabs face is pollution. In the text, it states, “Approximately 6.4 million tons of plastic and other debris enter the oceans each year. And every year., more than 1 million marine animals die from eating or getting caught in this debris,” (Dignan 13). This shows that an environmental threat that blue crabs face is pollution because if about 1 million animals are dying each year because of pollution, we have a serious problem.
The indirect death is a crop-duster ran into a power line, a traffic accident and two heart attacks. The Toutle River was flooded by snow. About twelve million feet of stocked lumber was in the river. There were eight bridges destroyed. About 200 homes are either destroyed or damage.
Coral reefs are dying at an alarming rate thanks to many factors, mostly caused by humans. For instance, when we pollute the earth and our oceans by burning greenhouse gases, we cause climate change. This affects the coral as they can’t withstand the water raising by only a few degrees. This often causes coral bleaching, which kills these animals. Also, storms can destroy reefs, also often caused by humans affecting the environment.
Ocean Pollution DBQ Did you know that every year, eight million metric tons of plastic is dumped or somehow ends up in the ocean (Doc. 1)? The following sentences will talk about what people are doing to pollute the oceans and how they are making the pollution better. Humans are the biggest threat to animals in the ocean because they litter so much (OI). Sometimes, people litter without even knowing they're littering.
Destructive fishing methods cause harm to the reefs because the dynamite and cyanide or other methods used because they break up the fragile coral reef are highly unsustainable. Unsustainable tourism generates a lot of income for the host countries, the tourists damage the coral reefs by careless swimmers and divers, and poorly placed boat anchors. Then there is also the problem with the hotels and resorts have a tendency to discharge untreated sewage and waste water into the ocean, which pollutes the water and helps the growth of algae, which makes it harder for the coral reefs to grow and expand. The growth of coastal cities and towns that generate multiple threats to the coral reefs that are nearby because with the expansion of the cities or towns there is limited space airports and other constructions projects are taking up the space that the reefs need to survive. “Coral reefs are biological assemblages adapted to waters with low nutrient content, and the addition of nutrients favours species that disrupt the balance of the reef communities” ( The International Coral Reef Initiative).
This causes heavy disease to spread around the environment due to unwholesome and unnatural confinement of living creatures. As US farming industries kill more than 30 millions bird each day and 10 billions bird in a year, this animal carnage can pollutes a land, air, and water that contains variety of diseases including bacteria, chemicals and viruses. Also, poisoned well water is a major issue on the Delmarva Peninsula which kills about 600 million chickens per year and it results 3.2 billion pounds of raw waste, 14 million pounds of phosphorous and 49 million pounds of nitrogen. Another situation happened in southeastern part of us which areas are being turned into fly-infested places by the poultry industry. The wildlife habitat is destroyed to erect new poultry houses, slaughtering plants and worker’s trailer parks.
The Black Death, over a span of five years, killed 25 million people and it was almost impossible to survive. First, the Plague was just an outbreak of the bubonic plague, which is a disease, created by the bacteria Yersinia Pestis. The first known case of the Black Plague was recorded in China, 224 B.C.E. In 1348, twelve Genoese boats docked at the Sicilian port of Messina, Italy, after they had finished sailing the Black Sea. Rats that lived on the ships spread the Plague to Britain in 1348.
Ocean acidification is killing off the oyster population, which is also affecting the jobs in Washington. Initially, ocean acidification is when acidic gases are emitted into the air and absorbed into the ocean. According to the video Ocean Acidification by NOAA, ¼ of all the carbon dioxide release into the air is absorbed into the oceans. Some major contributors to carbon emissions are automobile gas and factory emissions. This is a problem in the Pacific Northwest because acid sinks to the bottom, but Pacific winds bring acidic water up from the bottom near the shore by the shellfish.
If you could save your mothers life by walking a couple yards to the nearest trash can would you? Of course you would! Dumping plastics into our oceans is a huge problem for our environment and the people that live in it. Plastics are killing our marine life. According to a Biological Diversity website (https://www.biologicaldiversity.org/campaigns/ocean_plastics/), the author states that “Thousands of seabirds and sea turtles, seals and other marine mammals are killed each year after ingesting plastic.” People keep littering and that littering is killing precious marine life.
The operations have raised troubling questions about water quality and threat to public health. “Manure from factory farms often contains majority of heavy metals, lake-choking nutrients and deadly pathogens such as E. coli. In fact, wherever factory farms have concentrated industrial piles of manure in small space, big trouble follows” (Dr. Paul Hasselback). Local citizens are concerned about the amount of untreated waste it creates. According to a U.S. survey, people living downwind from hog farms, where such factories originate experience more headaches, runny noses, sore throats, excessive coughing, diarrhea and burning eyes than residents of communities without hog factories.
When the Bubonic plague hit Marseilles, France, it killed 50,000 people (Dobson 16). Even with the Bubonic plague beginning in multiple continents and killing people all around the world, experts believe that one can acquire the disease from similar