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Monday, March 28, 2011

Marine Bio 4th Quarter Posts

19 comments:

  1. Is a fish worth chasing?
    In the North Sea it is so dark and murky that you can barely see and even though thewater is like that harbor seals can still hunt and catch fish for food. Marine Biologists have known that harbor seals use their whiskers to find food. Now marine biologists have found that their whiskers can determine if the fish is worthwhile to catch and eat or not. In the University of Rostock in Germany they conducted a test on a harbor seal named Henry. They had a motorized arm with different paddles to create different types of wakes. They also put ear muffs on Henry and a blindfold to ensure that he was only using his whiskers. 90% of the time he chose correctly.

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  2. Banking Coral Sperm
    They are now saying that a sperm bank for the corals of the Great Barrier Reef may be able to save the reef’s genetic diversity and help with restoration. The Smithsonian Conservation Biology Institute and organizational partners, the Australian Institute of Marine Science, Monash University and the Taronga Zoo in Sydney, plan to put coral sperm and embryonic cells on ice. Those cells should stay alive for centuries. Scientists say that in the future the cells could be used to restore coral that have been harmed and destroyed by pollution, climate change, ocean acidification, ship collisions, and destructive fishing practices

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  3. Save the Turtles

    There have been events that had called for better and more efficient protection methods to be taken for the sake of the Sunshine Coast see turtle population. The call for these events had been mage on the eve of the World Turtle Day. In the weeks to come after the World Turtle Day Tony Burke, the Federal Environmental Minister will make a decision as to the level of protection that these sea turtles will receive. There are currently less than 1% of these sea turtles that are being protected.

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  4. Back in the ocean: 60 whales feared at risk of beaching themselves were 'supporting sick companion to her death'
    A pod of 60 whales vanished after a female pilot whale was found in the shallow waters of Loch Carnan in South Uist. Marine Biologists say they whales might have been accompanying the sick whale to death.the British Divers Marine Life Rescue have been searching and waiting for the pod in case they return. The pod was seen in Loch and 20 of them were suffering from head injuries.

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  5. Alex Ornbo
    Horseshoe crab in decline
    Tim king, a scientist with the U.S Geological survey and lead author of the study said that the horseshoe crabs may continue to decline because of the climate changes around the world. The harvesting of the crabs is a big part of their decline and the climate change has too. The scientist predicted that sea level rises and water temperature fluctuations may limit them from interbreeding which will lead to a decline of the crabs. Other marine animals such as the Atlantic loggerhead turtle have been affected because they eat these crabs and now have to adapt to find other sources of food.
    http://www.macroevolution.net/horseshoe-crab.html

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  6. Sewage-Derived Nitrogen Increasingly Polluting Caribbean Ecosystem

    In the Caribbean, many of the islands are dumping their untreated sewage into the ocean.Unlike the United States and many other developed countries,most of these third world countries don't have the financial resources to have a world class water treatment system.This article also mentions Guam, it says that Guam also has poor wastewater treatment. It mention that if the proposed marines do come to Guam, the system will be strained too much and a similar situation might occur. This pollution in the Caribbean islands has decreased the ability to catch desired fishes. As i learned during th water conference,Guam water comes from the aquifer. If the marines do come to Guam, we need to upgrade our facilities. If 8,000 people, in addition to the residents living on Guam do use the sewage system, our facility will have a backlog. This sewage that isn't treated will have to be dumped somewhere. If it isnt treated properly, it will contaminate the aquifer, our source of drinking water. Who would want to drink sewage????
    http://www.sciencedaily.com/releases/2011/05/110517073946.htm

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  7. This comment has been removed by the author.

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  8. Seals Sense Shapes Using Their Whiskers to Feel Wakes

    Seals hunt in the north sea, which is home to some of the murkiest waters. This murky water makes it almost impossible for any organism to see underwater.However, that doesn't prevent the seal from catching its prey, because without prey there is no way the seal can survive.Seal use their whiskers in a way like the military uses sonar. it feels vibrations in the water. Their ability to feel vibrations is soo good that they can tell which fish is coming to them. They can distinguish between a large fish which is easier to catch or a small fish that is fast and hard to catch.

    http://www.sciencedaily.com/releases/2011/05/110512083141.htm

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  9. Ozone depletion over Arctic 'unprecedented' this winter
    By the CNN Wire Staff

    Ozone depletion has reached an “unprecedented level” according to U.N. weather agency. There has been a record loss in the ozone layer since last march. The ozone protects the earth from ultraviolet rays. Ultraviolet rays because skin cancer, cataracts, immune system deficiencies, and also can damage crops and marine life. The ozone also helps regulate the earth’s temperature. With the loss of ozone we will face higher average temperatures but colder temperatures in the stratosphere. This is especially affecting the arctic area because the ice caps are melting faster than ever. Ozone depletion is caused by human activity. Arctic winters are becoming significantly shorter because of this.

    http://edition.cnn.com/2011/WORLD/americas/04/05/arctic.ozone.report/index.html

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  10. alex ornbo
    antarctic krill populations stable
    Researchers used small boats to conduct the first multi-year survey of Antarctic krill near livington Island. They found that near-shore waters had higher krill biomass density than offshore waters and also found that near-shore waters had less year to year variation than offshore waters. Krill are very part to the Southern ocean food chain. They are an important resource for many animals such as penguins, seals, and whales. Large research vessels cant travel in shallow near shore waters, surveys of krill were restricted for sampling. The high and stable densities of krill in shallow water may be more important than offshore krill.

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  11. Squid’s bioluminescence comes from eye-related genes

    A small Hawaiian squid can hide itself by using an organ with the same genes found in its eye; using bioluminescence, the squid can light up its underside to match the surrounding light from the sun. This camouflages the squid in the same way that it squirts out black ink to cloak itself. This study was reported in the Proceedings of the National Academies of Science. The Hawaiian Bobtail squid has a light organ that is completely separate from the eyes. This organ is light sensitive and uses some of the same genes as the squid's eye. Todd Oakley, an evolutionary biologist at UC Santa Barbara, did the research of the squid’s genes. He confirmed that the genes in the light organ are similar to those of the eye of the squid.

    http://insciences.org/article.php?article_id=5630

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  12. Marine Ecosystems of Antarctica Under Threat from Human Activity

    A group of scientists from the US and the UK has warned the world that the marine ecosystems of Antarctica is under threat. Just like every organism, we humans find a way to use it. By using these organisms to our advantage we harm the ecosystem of others. Antarctica being one of the most pristine environment on the planet, has led to scientists introducing foreign organisms to the environment these organisms end up being harmful. not to mention overfishing and pollution by humans has significantly altered the ecosystem. Many of the fishes might not be able to adapt to the new changes. we humans are some of the smartest organisms alive, lets use that intelligence for a greater good and think about our surroundings and not our stomachs or our pockets.

    http://www.sciencedaily.com/releases/2011/03/110331104003.htm

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  13. Audell Sabeti

    forgot my account again mrs. yahn thankyou


    http://www.sciencedaily.com/releases/2011/05/110516181327.htm

    Oceanic Land Crab Extinction Linked to Colonization of Hawaii." Science Daily: News & Articles in Science, Health, Environment & Technology. Web. 22 May 2011. .

    1. This article is written about the researchers at Florida who have described a new species of land crab that changed the ecology of Hawaii. This event doesn’t necessarily take place anywhere, but the event talked about in the article talks about Hawaii. The loss of these land crabs impacted the ecology of Hawaii because land crabs are major predators, and they control litter decomposition and help in nutrient cycling and seed dispersal. Their disappearance was caused by the arrival of humans to the islands and resulted in big changes in Hawaii’s ecosystem. "If these land crabs were alive today, Hawaii would be a very different place," said lead author Gustav Paulay, marine malacology curator at the Florida Museum of Natural History on the UF campus. The world at large isn’t generally affected, but this event teaches us many things. The world is influenced positively because it teaches us that these small animals make giant changes, and each organism has role in a habitats ecosystem. So, animals becoming extinct is a serious issue, and people should care about animals.

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  14. Scripps Scientists Help Decode Mysterious Green Glow of the Sea

    Longtime sailors have been mesmerized by the beautiful displays of green light often seen below the ocean surface in tropical seas. Now researchers at Scripps Institution of Oceanography at UC San Diego have discovered clues about the bioluminescent worms that produce green glow. Marine fireworms use bioluminescence to attract mates in a mating ritual. Research conducted by Dimitri Deheyn and Michael Latz reveals that the worms also may use the light as a defensive measure. The fireworms used in the study are seafloor-dwelling animals that inhabit tropical and sub-tropical shallow coastal areas. During, females secrete luminous green mucus-which often draws the attention of human seafarers-before releasing gametes into the water. The bright glow attracts male fireworms, which also release gametes into the bright green cloud.

    http://insciences.org/article.php?article_id=3955

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  15. audell again

    http://www.sciencedaily.com/releases/2011/05/110511131140.htm

    Antarctic Icebergs Help Ocean Take up Carbon Dioxide." Science Daily: News & Articles in Science, Health, Environment & Technology. Web. 22 May 2011. .

    2. This article is written about the icebergs in Antarctica. This event takes place in Antarctica. The event discussed is about the icebergs in Antarctica and how they fertilize the Southern Ocean develop the growth of algae that take up carbon dioxide from the atmosphere and then, by marine food chains transfer carbon into the deep sea. This event will change the world by helping the oceans take up carbon dioxide. It shows us that icebergs are important to the world, and that they are melting, so we need to do something to save them.

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  16. Researchers solve mystery of deep-sea fish with tubular eyes and transparent head

    Ever since the "barrel eye" fish was first described in 1939, marine biologists have known that it's tubular eyes are very good at collecting light. Deep-sea fish have adapted to their pitch-black environment in a variety of amazing ways. Barrel eyes typically live near the depth where sunlight from the surface fades to complete blackness. They use their sensitive tubular eyes to search for the faint silhouettes of prey overhead. Although tubular eyes are very good at collecting light, they have a narrow field of view. Until now, most marine biologists believed that barrel eye’s eyes were fixed in their heads, which would allow them to look up. This would make it impossible for the fishes to see what was directly in front of them, and very difficult for them to capture prey with their small, pointed mouths.

    http://insciences.org/article.php?article_id=2642

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  17. alex ornbo
    sea ice thinning in arctic
    Sea ice physicist athe Alfred wegener institute are concerned about the equilibrium in the arctic ocean. They have found that the mass of the ice is shrinking because its thickness is declining. To find the problem,currently measuring the ice thickness north and east of Greenland using aircraft Polar 5. Rsearcher, D. Rudiger Gerdes has been wondering for 30 years, when the ice will melt. Researchers have been observing that the ice is getting thinner for several years and as a result, less freshwater and salinity of the artic ocean declines. This is influenceing all living things that have adapted to the conditions.

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  18. audell! :D

    http://www.sciencedaily.com/releases/2011/05/110511114309.htm

    Marine Lab Research Tracks Pollutants in Dolphins and Beluga Whales." Science Daily: News & Articles in Science, Health, Environment & Technology. Web. 22 May 2011. .

    3. This article is written about the scientists at Hollings Marine Laboratory who have researched bottlenose dolphins and beluga whales. This event takes place in Charleston, S.C. The event discussed is that bottlenose dolphins and beluga whales accumulate toxins in their bodies when they live and feed in waters near urbanized areas. PCB’s were the chemicals found in these whales and dolphins. This event doesn’t really affect the world at large, but it teaches us many things. Our industry is killing animals, and we must protect our animals because they are important to the world. This event has a negative effect because dolphins and beluga whales are dying, and we need to protect them.

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