THE CONTAMINATIONhttp://slowfood.com/slowfish/pagine/esp/pagina.lasso?-id_pg=46
Our oceans are contaminated by an enormous amount of trash the we, humans make. Most of these substances did not exist 50 years ago. When farmers use fertilizer or pesticide, the emissions from cars... they all end up in the ocean. The emissions that go to the atmosphere come from the earth and all of these emissions end up in the ocean damaging plants and animals. Marine activities like fishing have had a lot of problems lately because they catch more trash or infected fish than healthy fish. The Program of the United Nations for the environment reported that, plastic bags and bottles are the most residue found in our oceans. Plastic is distribute all around our oceans. They discompose very slowly. And they turn up in small pieces of really toxic material that smaller fish will end up eating and they will either die or humans will catch them but they are all sick. For example turtles eat plastic bags because they thing that they are eating jellyfish. Five years ago someone did an study about birds and they said that 95% of birds have plastic in their stomach. Trash is a really big deal in our world. There is a island made of trash, it's bigger than Texas, it is calles Trash Vortex.
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After 33 years in captivity, exploitation and being tortured Tilikum has finally found freedom in death. All across the country animals are being abused, maltreated, and humans are exploiting them. Tilikum was an orcs in captivity, weighed 12,500 pounds and measurement over 22 feet in length. He was captured for the first time when he was only 2 years old in 1983. They found him near Iceland. After his capture, he was kept in a cement holding tank for a year and then he was transferred to a zoo in Iceland. The only thing he could do was swim in small circles and float aimlessly at the surface of the water. Finally he was transferred to the rundown Sealand of the Pacific in British Columbia, Canada. He was forced to live in a 100-foot-by-50-foot pool, just 35 feet deep. They trained him using food, he regularly endured painful. Attacks by two dominant female orcas. He was forced to perform every hour, seven hours per day, 7 days per week. Because of his constant stress and exhaustion gave him stomach ulcers. In 1991, Sealand trainer Keltie Byrne fell into the pool containing 3 orcas. She was pulled to the bottom of the enclosure by Tilikum. She drowned. Sealand put Tilikum up for sale and when Sea World heard about him the bought him. They use his sperm and 54% of the orcas in Sea World have his genes. He kept living in a small tank. He has been involved in multiple incidents of aggression. The stress of living there caused him abnormal repetitive behavior, including chewing on metal... The stress also caused aggression toward humans, which has cost two more lives. Tilikum scalped and dismembered Dawn as well as breaking bones trough out her body before drowning her. His punishment after this was that he was kept in a tiny enclosure that limited his ability to swim or communicate with other orcas, for a year. Then he went back to performing. SeaWorld causes them to lash out, posing a danger both to other whales and to employees alike. In my opinion what SeaWorld and other places do to those beautiful animals is not fair. No one would like to live in those conditions that can cause a serious damage on them. Someone should do something about it and treat those animals the way they deserve. They should be living in the ocean with their families. We all knew that there has been a lot of talk and consequences about climate change. We have been told that it is affecting our world but humans do not care at all.
This article explains how climate change it is a slow but constant process and that we will see its consequences in a few years. We get used to hear that this year will be the hottest on record. The glaciers are melting. A few years ago, predictions hat our warming climate would cook the Artic ice cap until it melted came true. Photos of a lake near the North Pole went viral, then quickly faded from view. Now the Canadian Coast Guard can publish images of open sea at the North Pole and it can pass unnoticed. the thing is people know that climate change is a problem. But there are so many other things going on in their lives that they do not care enough to do something to change this tragedy. Sweden'sOskarshamn nuclear plant, which supplies 10% of the country's energy had to shut down one of the reactors after a jelly fish invasion clogged the piping of its cooling system. The invader its known as moon jellyfish swarm, it's 95% of water and it does not have a brain. They had to shut down one of the reactors in 2005 because an other invasion occurred. Costal areas around the world have struggled with similar jellyfish blooms. These blooms are increasing in intensity.
Jellyfish have caused power plant outages, destroyed fisheries and cluttered the beaches of holiday destinations. The proliferation of jellyfish appears in large part to be related to humans impact on the oceans. Throns of jellyfish have disrupted power generation everywhere from Muscat to Maryland, from South Korea to Scotland. Things are worst in the fishing business, where blooms have wiped out billions of dollars earning over the last few decades. Tourism has taken a hit too. This summer a pileup of a million jellyfish along 300 kilometer swatch of Mediterranean coastline shortened swimming season for hundreds of thousands of tourists on beach holidays. This article talks about how hundreds of animal die because the pollution of the ocean and ingestion or entanglement in marine debris. The 80% of the trash that we find on the ocean comes from landfills and other urban sources. This trash is consumed by fish and can strangle sharks and damage coral reefs. In the North of the Pacific Gyre we found the "Great PacificGarbage Patch" it's a large area (almost the size of Texas". It contains 3.5 million tons of trash.
A lot of turtles are dying because they eat plastic bags thinking that they are eating jelly fish. That can harm our world and we do not want turtles to disappear. We have talked in class about this and we know all the consequences that trash does. People do not know much about this because we are not well informed. I think a good way to inform people is showing them what is trash doing to the ocean (like the Pacific Garbage Patch). If people are informed we would change the way we do things. We would probably reuse plastic bags, use paper bags or reusable cloth bags. We can recycle out trash so it can be reusable. We should not litter. Almost all green areas are dirty because people leave their trash there. So, as we talked in class we should change this if we want to have our world nice and pretty as it is now. Last Friday, we went to the Aquarium with all the class. We looked at all the fishes and spices. When I was little I used to go to the aquarium a lot of times because I was obsessed with the ocean and with the animals that live there. So when we went the other day it felt like I was back home. We've learned about a lot of organisms that live in the ocean, how they live, how the feed, how they reproduce and all kinds of intresting things. It was so much fun to spent the day with the class doing something else than being in class, taking notes. We saw: jellyfishes, seahorses... The life circle of a typical jellyfish involves an alteration of generations. The animal passes through two different body forms. The dominant and conspicuous medusa form, while the smaller polyp form is restricted to the larval stage. Jellyfish can either be a male or female and they reproduce by sexual reproduction. The male releases sperm through his mouth. The sperm swims into the mouth of the female where fertilization occurs. Normally jellyfish live three to six months.
Jellyfish are very important part of the marine food web. They mostly feed on zooplankton, comb jellies and other jellyfish. Venom Apparatus They are equipped with a specialized venom apparatus called cnidoblast to defense and feeding. It is found on the tentacles or oral arms. 300 million years ago all the continents in the earth were together. It was a supercontinent called Pangaea (sometimes called Pangea), surrounded by a single ocean called Panthalassa. The explanation of Pangea is explained by the theory of the tectonic plates. As time goes by some continents have been created and some others have been broken up. Alfred Wegener proposed the notion of an ancient supercontinent and said that "continents fit together like a tongue and groove". Another fact that can prove this theory is that there has been found fossils that are the same from the same period of time and in different parts of the world. For example there has been found Coal deposits in Pennsylvania and Germany. This proves that North America and Europe must have been a single landmass.
As we learned in class, Pangaea was divided by a shear boundary. After Pangaea was divided five oceans were created: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean and Artic Ocean. Right now the continents are moving eastwards. They have found that Australia is inching towards Asia and the eastern portion of Africa is peeling off from the rest of the continent. Within the creation of new continents there has been other problems with the plate tectonics. There are different types as Mid-ocean ridges, this happens when hot water goes up to 350, and a lot of chemicals with the heated water comes up. Subduction zones is then an accumulation of hot material is under the plate and suddenly it starts raising up. Hot spot Islands as Hawaii and the Galapagos, were created because a hot rock was accomulated under the water, when it explotes it creates new islands. This article was written by Tia Ghose, she is a senio written, she is a researcher and reporter at the Center for Investigative Reporting and California Watch. Before she joined the organization in 2010, she was a Kaiser healt reporting intern at Milwaukee Journal Senrinel. All her work has been published at Wired.com, Scientific American, the Salinas California, Science News and other places. She earned a graduate degree in science writing from the University of California Santa Cruz. http://www.livescience.com/38218-facts-about-pangaea.html In this article it says how a turtle named Yawkey was found in the beach of Norht Carolina. A group of people who work at the aquarium of South Carolina took the turtle to the hospital and they saw that he had a issue with his temperature. They made him all kind of tests to know what was wrong with him. They found out that he ate a plastic bag thinking that it was a jelly-fish. The turtle stayed for a few days at the aquarium and then the doctors released him to the ocean again.
Personally, I think the doctors and the people that work at the Aquarium made a great job saving the turtle's live. They took care of him making all king of tests and they did not stop until they found out what was wrong. They took care of him making his temperature adequate again. Finally when he was fine they took him to the ocean again where we restarted his life. On one hand, I admire people that try to help the animals and do the best that they can. On the other hand, O cannot understand how humans can be this disrespectful with their own planet. A lot of animals die every year because of what the humans do. I do not understand how we can leave the trash on the floor, or in the ocean, or damage or own planet. "A happy ending for an endangered leatherback turtle." Washingtonpost.com 13 Mar. 2015. Student Resources in Context. Web. 19 Oct. 2016. It talks about the consequences and how they found out the signs of contamination from the Fukushima nuclear accident. They found out that the US West Coast has a higher detected level of radioactive cesium isotopes. The marine radiochemist Ken Busseler, is using sophisticated sensors to look for minute levels of ocean-borne radioactive from Fukushima. He also has collected some sampling of fish in British Columbia to know if they have Fukushima censium but he has not seen any.
I think what this marine radiochemist and his mates are doing a great job. Trying to figure it out the level of contamination water around the worl because of Fukusima's. Also he is studying if any kind of organism in the ocean (fish) are contaminated of it. Layers nowadays are so much lower in Japan that in 2011, so that means that marine radiochemist are doing well their work. Everything is going better and they are trying to hel the worl and make our world saver. |
My name is Blanca, I'm from Spain and I'm a studying in Tampa Perp.
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