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A herd whales of the North Atlantic near Greenland was discovered in an area where this species is believed extinct, using an underwater microphone system. The discovery of at least three whales, the presentation in the meeting of the American Acoustical Society in Portland, Ore., Especially important, because this is an area that can be extended to vessels if ice continued melting at the poles. Whales are hunted baleen fat and until a global ban on the hunting of whales was enacted in 1937. Scientists estimate that only about 350 children whales left in the oceans, according to the New England Aquarium. The mortality rate of whales mainly due to collisions with boats on the busy waterway area of the eastern U.S.. In the past decade, collisions with ships are the cause of approximately 40% of deaths of whales. To determine the location of new whales, a group of scientists from Oregon State University and Management Agency National Oceanic and Atmospheric Administration (NOAA) has used hydrophone system can record distant sound hundreds of miles. David Mellinger, project leader, said: "Technology allows us to identify a habitat has not been studied species of whales are endangered and raises the possibility that-in contrast to the failure conventional thinking - a rest of whales and the Middle-East Atlantic still exists. " Scientists 3d printer do not know for sure how many whales in the area, located near the southern tip of Greenland and a whale concentration area important in the 19th century called Cape Farewell Ground. However, they scored over 2000 sound of whales in the area from July to December 2007. Mellinger said: "We do not know how many whales in this area. They are not really differences in the sound output. But we're getting sound in 3 different locations on the same day, so figure at least 3. Even this figure 3d printer is significant because the total number of whales is estimated at about 300 to 400 ". Scientists 3d printer including Matt Fowler, who now works for Oregon State University and NOAA, using hydrophone in waters of the North Atlantic to record sound by whales and other animals emit. (Photo: Dave Mellinger, Oregon State University)
Only two whales 3d printer were found at Cape Farewell Ground in 50 years. Whales in this area has been hunted 3d printer to near extinction before protective measures were declared. Whales emit different sounds, Mellinger said, and through careful analysis can distinguish these sounds from other whales. The researchers used records of whales of the North Atlantic and North Pacific to identify particular sound of this species. The cycle of the sound recording is shown whales migrate from the South-West of the Northeast region towards the end of July 2007, then returned in September 2009 - this is the place where the roads Sea will be deployed. Phillip Clapham, whale expert laboratory animals national marine mammal of NOAA, said: "Roads prepare sea Duo
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