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The Foreign Ministry issued a st

Beitragvon huge12345 » Mo Feb 18, 2019 2:31 am

SAN FRANCISCO, Dec. 18 (Xinhua) -- Researchers with Oregon State University (OSU) have recorded and analyzed a sound in the Mariana Trench notable for its complexity and wide frequency range, believing it represents the discovery of a new baleen whale call.


Recorded via passive acoustic ocean gliders, which are instruments that can travel autonomously for months at a time and dive up to 1,000 meters, the five-part call lasts between 2.5 and 3.5 seconds and includes deep moans at frequencies as low as 38 hertz and a metallic finale that pushes as high as 8,000 hertz.


It resembles the so-called "Star Wars" sound produced by dwarf minke whales on the Great Barrier Reef off the northeast coast of Australia, the researchers say.


Researchers at OSU's Hatfield Marine Science Center named it the "Western Pacific Biotwang."


"It's very distinct, with all these crazy parts," explained Sharon Nieukirk, senior faculty research assistant in marine bioacoustics at OSU. "The low-frequency moaning part is typical of baleen whales, and it's that kind of twangy sound that makes it really unique. We don't find many new baleen whale calls."


The Mariana Trench, located in the western Pacific Ocean, to the east of the Mariana Islands, is the deepest known part of the world's oceans with a maximum-known depth of nearly 11,000 meters. It is about 2,550 kilometers long with an average width of 69 kilometers.


Minke whales are baleen whales, meaning they feed by using baleen plates in their mouths to filter krill and small fish from seawater, and live in most oceans. They produce a collection of regionally specific calls.


"We don't really know that much about minke whale distribution at low latitudes," said Nieukirk, lead author on the study published in the Journal of the Acoustical Society of America. "The species is the smallest of the baleen whales, doesn't spend much time at the surface, has an inconspicuous blow, and often lives in areas where high seas make sighting difficult. But they call frequently, making them good candidates for acoustic studies."


However, many questions remain. For example, baleen whale calls are often related to mating and heard mainly during the winter, yet the Western Pacific Biotwang was recorded throughout the year.


"If it's a mating call, why are we getting it year round? That's a mystery," Nieukirk was quoted as saying in a news release from OSU. "We need to determine how often the call occurs in summer versus winter, and how widely this call is really distributed."


"Now that we've published these data, we hope researchers can identify this call in past and future data, and ultimately we should be able to pin down the source of the sound. More data are needed, including genetic, acoustic and visual identification of the source, to confirm the species and gain insight into how this sound is being used."


BEIJING Cheap Wholesale NBA Jerseys , Feb. 19 (Xinhua) -- Several world leaders have expressed their goodwill and best regards to the Chinese people on the Chinese Lunar New Year.


Kyrgyz President Almazbek Atambayev sent on Thursday a message of goodwill and best wishes to Chinese President Xi Jinping and the people of China on Spring Festival of the Year of the Goat.


The Goat occupies the eighth position in the Chinese Zodiac circle of 12 animals.


In the message, Atambayev noted that the ongoing development of relations between Kyrgyzstan and China is based on longstanding friendship, good neighborliness and mutual respect.


The two countries have been expanding contacts in such fields as trade Cheap NBA Jerseys Free Shipping , economy, science and technology, and culture.


"Our high level of mutual understanding and support has been fully confirmed during our meeting in Shanghai in May last year and in Dushanbe in September 2014. And I hope we can continue the meaningful dialogue with you in the upcoming SCO (Shanghai Cooperation Organization) summit in the Russian city of Ufa Cheap NBA Jerseys From China ," Atambayev said in the message addressed to Xi.


Portuguese Prime Minister Pedro Passos Coelho also issued a statement to congratulate the Chinese people, the Portuguese community in Macao, and the Chinese community in Portugal on the occasion of the Spring Festival of 2015.


"On the occasion of the Chinese Lunar New Year Cheap NBA Jerseys China , I want to send in the name of the Portuguese government, and in my own personal name, the most sincere wishes for the Year of the Goat Cheap NBA Jerseys ," which shall be translated into wishes for prosperity, health and good fortune for the Chinese people, for the Portuguese community in Macao and the Chinese community in Portugal Cheap Jerseys China Free Shipping , Passos Coelho said in the statement.


"The Chinese Lunar New Year commemorates the beginning of the festive season, marked by family reunions and celebrations that take place in China and over the world, reflecting the vibrant nature of the Chinese culture Cheap Jerseys China Wholesale ," he added.


Passos Coelho added that the Chinese Lunar New Year is celebrated in Portugal as well, "illustrating the important ties that join us and the richness of our diversity."


Passos Coelho pointed out that China and Portugal would commemorate the 10th anniversary of "all-round strategic partnership" between the two countries and said the Year of the Goat symbolizes "perseverance" and "creativity".


"We will join efforts to continue to work with perseverance and creativity for the deepening of our friendship, with mutual advantages for countries and citizens Cheap Wholesale Jerseys ," Passos Coelho added.


He also praised the Macao community which, he said, serves as an important link between Portugal and China Cheap Jerseys Free Shipping , and the Chinese community in Portugal for their example of "work and integration".


The Venezuelan government Wednesday congratulated the Chinese government and people on the Chinese Lunar New Year.


The Foreign Ministry issued a statement on behalf of Venezuelan President Nicolas Maduro, reiterating his government's willingness to continu. Wholesale Jerseys Wholesale NCAA Jerseys Wholesale NBA Jerseys China Wholesale Jerseys Wholesale Jerseys Free Shipping Cheap NCAA Jerseys China Cheap NBA Jerseys From China Wholesale Soccer Jerseys Online Wholesale NHL Hockey Jerseys Wholesale Football Jerseys China Free Shipping
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