Tuesday, May 25, 2010
FAQs
Case Studies
Saturday, May 22, 2010
Article Summary 5
| Record Beach Litter Threatens Marine Wildlife | Seals, turtles, whales, dolphins, and seabirds are being endangered from pollution in Britain’s beaches. In this article, the increase in litter like cigarettes and plastic drink bottles is explained. It is becoming almost impossible to walk on a beach and not find some kind of litter. Around 4,000 volunteers took part in cleaning up 350 beaches in Britain in September of 2007, and found 2,054 items of litter per kilometer. Although some of the pollution that ended up on these beaches was not from Britain, it is still their responsibility to clean it up. |
| Peter Griffiths | |
| April 9, 2008 | |
| ENN.com- Enviornmental News Network | |
Article Summary 4
| Marine Pollution: Centuries of Abuse Have Taken a Heavy Toll | This article is about how the man made pollutants are reaching the oceans and affecting the animals in them. It also points out that the pollution in the ocean also affects humans- since the fish we eat are ingesting pollutants, we are as well, but ingesting the fish. The pollutions don’t always start in the ocean though. Some of the pollution that ends up in the ocean is because it started in a stream by a farm, where pesticides and fertilizers got into it, and eventually flowed into the ocean. Pollution also occurs with boats dumping solids like plastic and Styrofoam into the ocean, where animals mistake it for food. Proof of this is the big “Pacific Trash Vortex” in the North Pacific- a big floating pile of trash the size of Texas in the middle of the ocean. This article also mentions noise pollution- sound waves from above water that confuse animals and mess up their natural patterns, like migration. |
| Unknown Author | |
| 2010 | |
| National Geographic Magazine | |
| http://ocean.nationalgeographic.com/ ocean/critical-issues-marine-pollution/ |
Friday, May 21, 2010
Article Summary 3
| Plastic Breaks Down in the Ocean, After All-- and Fast | This article is about the newly discovered dangers of plastic degrading and releasing chemicals into the ocean. Scientists didn’t know that plastic is dissolving so fast and at such low temperatures, which although is less of a threat for chocking and strangling, the chemical toxins released into the waters is just as harmful to marine animals as the solid form of plastic. Marine animals are faced with another problem with plastic because of how sometimes it will sink to the bottom of the ocean if it’s heavier then the water, making the areas of dangerous plastic to be much greater then it would be if it was just on the surface, or if it all sunk. |
| Carolyn Barry | |
| August 20, 2009 | |
| National Geographic Magazine | |
Article Summary 2
| Earth Day: Are We Destroying the Oceans? | This article is about many problems humans have created for the animals in the ocean. Problems like overfishing, habitat destruction, global warming, acidifying, pollution from land like sewage, fertilizer toxins, and litter. Only a small fraction of the philanthropic money donated to green cause goes to conservation of the seas. Although only 0.7% of the ocean is protected areas, these areas can make a huge difference in the marine life. “…the damage that humans are causing miles beneath the surface must be addressed as well. This is our life support system,’" …"’We take care of the ocean, and we take care of ourselves.’"[1] |
| Bryan Walsh | |
| April 14, 2010 | |
| Time Magazine | |
Tuesday, May 18, 2010
Article Summary 1
| Environment: The Perils of Plastic Pollution | This article is about the island of Laysan, an island in the Pacific that has practically become a huge, floating garbage dump. Not only is Laysan home to 14 million birds, but also the possessor of “…thousands of pellets as well as toy soldiers, disposable lighters and one toy Godzilla--all made of plastic.”[1] This plastic is mistaken for food like jellyfish by many animals like turtles, sea lions, seals, and sea birds. Much of the plastic that appears on the island of Laysan is from washing up on shore from the Pacific ocean because boats “…dump at least 6.6 million tons of trash overboard every year. Some 639,000 plastic containers and bags are tossed into the oceans every day… Estimates of the plastic fishing gear lost or discarded at sea every year range as high as 150,000 tons.” 1 |
| Jamie Murphy, Andrea Dorfman, and John D. Hull | |
| June 02, 1982 | |
| Time Magazine | |
Friday, May 14, 2010
Multi-Media List
Websites:
1. http://www.adoptabeach.org.uk/pages/page.php?cust_id=8
a. Effects of marine litter on wildlife, marine ecosystems, human communities, health, and economics.
2. http://seapics.com/feature-subject/environment/ocean-pollution-pictures-001.html
a. Picture of litter in the ocean that effects sea animals. Also talks about toxins that flow into the ocean and where it starts.
3. http://www.dbw.ca.gov/Pubs/Pollute/MarinePollution.pdf
a. Laws and requirements of marine pollution. Talks about litter, toxins, and oil spills and how to prevent it.
4. http://news.bbc.co.uk/2/hi/uk_news/scotland/highlands_and_islands/6248366.stm
a. Statistics and primary source for “ghost fishing.” Old fishing nets lost at sea are killing animals.
5. http://www.seagrantfish.lsu.edu/resources/factsheets/litter_mess.htm
a. Fact sheet on marine litter. Includes: the problem, why it’s a problem, how long it lasts for, the laws about it, it’s origins, global solutions, and local solutions.
6. http://see-the-sea.org/topics/pollution/noise/noise_pollution.htm
a. The basics about noise pollution. Talks about how and what affects whales and other mammals. Tells individual and local solutions.
7. http://www.marlab.ac.uk/Uploads/Documents/Impacts%20of%20Marine%20Litter.pdf
a. Impacts of marine litter. Types and quantities of litter, behavior of marine litter, and controlling it. Talks about everything it affects like human health, aquaculture, and fisheries, etc.
8. http://www.alternet.org/water/76056/
a. An alarming article about how much trash is in the ocean and how it moves around. Talks about dangers of the trash being there.
9. http://library.thinkquest.org/CR0215471/oil_spills.htm
a. Basics on oil spills and how it will affect specific animals. Talks about specific big oil spills like the Exxon Valdez oil spill- how it happened, and how long it took to clean up. Also talks about how they save the affected animals after a spill.
a. Pictures and information about the Exxon Valdez oil spill.
11. http://www.epa.gov/beaches/learn/pollution.html
a. Talks about how serious the beach pollution problems in the US are and where they start. Also says a little bit of the effects of the pollution.
Videos:
1. Short Video: http://www.youtube.com/watch?v=rf5iHqT1Rzc&feature=related
2. Medium Video: http://www.youtube.com/watch?v=rVwuPSLx2Xc
Long Video: http://www.mindfully.org/Plastic/Ocean/Our-Synthetic-Sea2004.htmScience Behind Marine Pollution
Marine pollution is one of the biggest causes of marine animal deaths. Debris like plastic, plastic bags, cigarette butts, fishing nets, and even balloons are all dangerous items that cause the injuries or deaths of many animals like turtles, dolphins, whales, sharks, many types of fish, and even birds. Plastic bags floating around in the ocean are often mistaken for jelly fish or squid and are ingested by animals which block the flow of food to make them feel full, when they later slowly die of starvation. Balloons released into the sky from celebrations like birthday parties also sometimes end up in the ocean. Because of their bright coloring, fish are attracted to these balloons which are then eaten- killing them as well. A large percentage of the deaths are cause by fishing nets. Getting entangled in the nets, animals can choke or starve to death. Another lethal pollutant is glass bottles thrown into the ocean. As many people find out from fishing, sea mammals are attracted to shiny objects. Obviously, when ingested, a glass bottle can potentially cut the throats of anyone who tries to swallow it. There are many other forms of marine pollution like oil spills and noise pollution. Oil spills are when liquid petroleum hydrocarbon is released into the ocean due to mistakes humans make. These often take months or even years to clean up. Besides polluting the water, oil spills greatly affect marine animals and birds. For birds, diving into the water to catch a fish is their way of hunting for food. This is interrupted by oil spills, leaving birds without food- and can also cause injuries. When the oil covers a bird, it makes them heavier, which can go as far as preventing them to fly. Birds also ingest this pollution when they try to clean themselves, causing damage to their kidneys, liver, and digestive system. Along with affecting birds, this can also affect mammals like sea otters and seals. Because of how the oil covers their fur, a fluctuation of their temperature can mess up their homeostasis, which can cause hypothermia. Oil spills affect smaller organisms further down in the bottom of the ocean like seaweed and plankton. These organisms use photosynthesis to obtain energy. When there is an oil spill, it is like another layer covering the sun, keeping them from creating the energy they need to live. Another type of pollution is noise pollution. Noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves from whales or dolphins. These can distract, irritate, and confuse the animals who try to communicate with each other. Solutions to this would be less use of boats or industrial tools on land. Less vibrations and sounds waves above the water would also help reduce noise pollution because there would be less to interfere with the natural sounds of the ocean. Marine pollution is dangerous to animals and humans alike, and if it is not stopped the food chain can be obstructed because of extinction of animals.