BONE-EATING WORMS FROM THE ANTARCTIC: the contrasting fate of whale and wood remains on the Southern Ocean Seafloor OLUDAMILOLA ADESIYUN GEOL 440 DR. CARL RICHTER NOVEMBER 17‚ 2013 This paper explains the results from the first experimental study of the fate of whale and wood remains on the Antarctic seafloor. Using a baited free-vehicle lander design‚ it is observed that whale-falls in the Antarctic are heavily infested by at least two new species of bone-eating worm‚ Osedax antarcticus
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Are we killing our oceans? This is the proposed question of Dahr Jamail in his article Oceans of pollution. He details several environmental pollution issues facing the waters of the world‚ from large floating plastic islands to hypoxic zones in which sea life cannot breathe. His thesis is that humanity’s inability to deal with plastic waste is causing harmful problems in the ocean to rise‚ which could lead to serious negative effects on the planet. He conveys the current scientific consensus and
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overfishing of our world’s oceans is causing a depletion of some prize fish‚ such as tuna and swordfish‚ to the point that some scientists believe that 90% of these big fish populations have been fished out. Jeremy Jackson of the Scripps Institute of Oceanography published a study in 2001 in which he asserts that overfishing is more destructive than toxic pollution or degrading water quality (University of Phoenix‚ 2007). Dr. Daniel Pauly‚ Professor and Director of the University of British Columbia’s Fisheries
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References: Marine Odyssey UK. (n.d.). Primary Productivity. Retrieved from http://marineodyssey.co.uk/primaryproductivity.html Trujillo‚ A. P.‚ and Thurman‚ H. V. (2011). Essentials of Oceanography (10th ed.). Retrieved from University of Phoenix eBook Collection database.
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From a young age‚ I have always wanted to pursue a career in aquatic sciences. Attending the University of Guelph as an undergraduate in Marine and Freshwater Biology fostered a growing passion for conservation biology. Now‚ having explored the different avenues available to passionate students‚ I have grown a strong interest in pursuing a Master’s degree in Dr. Ackerman’s laboratory. Dr. Ackerman and myself are interested in understanding the multiple ecological factors that impact unionid mussel
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Journey to the Ocean Floor Oceanography is a science that draws upon the methods and knowledge of geology‚ chemistry‚ physics‚ and biology to study the ocean. The Pacific Ocean is the largest and the deepest ocean. Most submersible dives follow a similar pattern‚ emphasizing bottom transecting‚ collecting and photographing specimens. To understand our ocean floor exploration‚ you must first know something about the ocean floor. Follow along below as I summarize the parts of the ocean floor
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Seas and oceans provide various types of resources to human beings and habitats to numerous species of plants and animals. They play very important roles in the economy of a nation and its people. Still‚ the marine and coastal ecosystems are under severe stress due to human activities. Ocean Resources The ocean is one of Earth ’s most valuable natural resources. It provides food in the form of fish and shellfish—about 200 billion pounds are caught each year. It ’s used for transportation—both travel
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The Nature of Geography What Do Geographers Do? Volcanologist A volcanologist is a geographer who specialises in working with volcanoes. Their responsibilities range from observing volcanic eruptions‚ to monitoring volcanoes‚ to analysing samples of rock from volcanoes and even predicting when the next eruption of a dormant volcano may occur. In a typical day of a volcanologist‚ one analyse data collected by others and manipulate it with the use of a computer. On the other hand‚ a volcanologist
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All unnatural material that finds its way to the world’s seas is classified as ocean pollution‚ however these materials built up over time. This process is known as bioaccumulation. There are many contributing pollutants to bioaccumulation in oceans such as toxins‚ marine debris‚ oil‚ sewage‚ eroded soil‚ and heavy metals. In the past‚ dumping small amounts of pollutants into the oceans‚ known as dilution‚ was not thought of to be a threat to the environment because all of the oceans combined
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Ocean Pollution It is believed that 4.6 billion years ago our Earth was formed. And over 200 million years ago the great body of water on this planet‚ what we call the ocean‚ was able to be formed (History of the Ocean). For 200 million years our ocean has flourished with the life of all matters of creatures from some of the first ever cells to take life‚ to pre-historic dinosaurs‚ to the fish‚ plants‚ and mammals we see today. However‚ today we face a new point in the history of our ocean. Today
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