NY Times article on ocean noise

This past Sunday there was a short blurb in the NY Times based on the recent National Geographic piece on human contributions to ocean noise.  Check it out at:

http://www.nytimes.com/2011/02/20/weekinreview/20grist.html?_r=1&scp=1&sq=noise%20ocean&st=cse

Dolphins to Boats: Put a Cork in It

Published: February 19, 2011

Noise has increased a hundredfold in many parts of the ocean over the last 50 years, according to National Geographic, a result of dramatic growth in shipping and other human activities. The problem is getting steadily worse for another reason. Seawater is absorbing less sound as carbon dioxide from fossil-fuel burning seeps into the ocean and acidifies it. “For many of these animals it’s as if they live in cities,” Brandon Southall, a marine scientist, says of the din. The noise has led to changes in foraging, calling and migration patterns among many species of whales and dolphins.

In one effort to reduce the din, 10 research buoys floating in Massachusetts Bay are now allowing researchers to share real-time data on whale locations with tanker captains, who can slow down their ships or alter course to avoid whales.

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Research leaders, Polytechnic University of Catalonia Barcelona ocean acoustician Andrea Mitchell said the study findings suggest that ocean noise pollution on marine animals, the degree of influence than previously expected. He said in a statement: "We know that ocean noise pollution will seriously affect the dolphins and whales, they use natural sonar to navigate and hunt. The study found that noise pollution is also the first to suffer invertebrates . invertebrate is a larger marine animal populations, had not found their voices are also closely related to survival. "

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Marine biologists, turned the pull thought, exploration ship of the sounds made full of animals and pollution adversary to the survival of other sea animals, but the adverse effects a speculation have not been substantiated. The Spanish Marine research institute of biologists say: "by the study, we found the evidence, the low frequency sound waves can give cephalopods cause damage." The ancient pull and was not involved with the new study, research papers will appear in the ecology and environment is "magazine.

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The national oceanic and atmospheric administration Marine zoologist Michael WeiJi Mr Is still not sure said in the specific cause of death. Obama WeiJi within and was not involved with the new research. He said: "although new study found enough evidence, that giant squid, the cause of death, but still needs more research to determine, from human activities noise pollution is leading to sea animals. The new study is universally damage found evidence that the giant squid, pull to the cause of death that may be true."

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