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SAN FRANCISCO puma clyde uomo italia , June 17 (Xinhua) -- Researchers have shown genetic clues left behind in shed cells, tissues, scales and feces by ocean animals can be used as forensic markers to accurately and easily survey marine life in complex deep-water environments.
While there is no easy method for detecting sea creatures' presence in the vast watery realm, researchers at Stanford University show progress in using deoxyribonucleic acid (DNA) analysis to detect ocean animals in locations where the water can be over 7,200 feet, or nearly 2 puma suede creepers nere ,200 meters, deep.
"We want to know what's out there," said Elizabeth A. Andruszkiewicz, a graduate student in Stanford's Department of Civil and Environmental Engineering and lead author of a paper published in PLOS ONE. "Eventually, this technology may answer bigger questions, such as how communities of organisms have adapted to environmental changes over time."
Of the few previous environmental DNA puma velvet creepers bordeaux , or eDNA, studies of ocean animals, all were done in relatively shallow nearshore environments. Most were done in controlled systems such as saltwater tanks. The Stanford-led study was done in the deep waters of Monterey Bay, an important ecosystem in the California Current, which flows southward along the western coast of North America.
Collecting eDNA is fairly straightforward, as a basic water sample does the trick puma velvet creepers grigie , and researchers can archive these samples for long periods by freezing them. The approach promises a faster and less invasive way to measure abundance and distribution of organisms. "This could revolutionize the way we keep track of animals," said study co-author Alexandria Boehm, professor of civil and environmental engineering at Stanford.
The eDNA survey identified 72 species of vertebrates, namely marine fishes, mammals such as elephant seals, humpback whales puma rihanna creepers italia , sharks and rockfishes, at study sites across 28 miles, or 45 kilometers, of the Monterey Bay National Marine Sanctuary. The researchers found DNA of some creatures, such as sunfishes, salmon puma basket heart patent blu , seahorses and mackerel sharks, only in locations where the water was less than 600 feet, or about 183 meters, deep. DNA of other animals, such as dolphins and marine smelts, turned up only in waters more than 600 feet deep.
The shallowest waters held the greatest biodiversity.
Taken as a whole puma basket heart patent nere , the findings provide a proof of concept for eDNA as an ocean sleuthing tool.
"It is a remarkably powerful way to answer a simple question: What species are present in space and time in our oceans?" co-author Barbara Block, the Charles and Elizabeth Prothro Professor in Marine Sciences at Stanford, was quoted as saying in a news release "It could change how we view our planet's marine biodiversity."
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RAMALLAH, Jan. 14 (Xinhua) -- Palestinian President MahmoudAbbas slammed on Sunday the peace deal proposed by U.S. PresidentDonald Trump, calling it a ""a slap on the face.""
Abbas told members of Palestine Liberation Organization (PLO)Central Council, who convened in the city of Ramallah for two days puma basket heart patent bianche ,that Trump's ""deal of the century"" is ""a slap on the face,"" adding""we will slap back.""
The Central Council convened for two days to come up withstrategic decisions on the peace process, the relations with Israeland to discuss Trump's declaration last December to recognizeJerusalem as Israel's capital.
""Jerusalem was removed from the table by a tweet of Mr. Trump,""said Abbas, adding that ""the status of Jerusalem is like Mecca.Nothing is more important than Jerusalem.""
The Palestinians consider East Jerusalem, which was occupied byIsrael during the Arab-Israeli war in 1967 puma basket heart patent rosa , as the capital of theirfuture independent state, while Israel declared the integralJerusalem as its eternal capital.
""We say No to what contradicts with our fate, our future or ourcause or our people... No and a thousand Nos and now we say toTrump No and No and we tell Trump 'the deal of the century' is 'aslap of the century,"" said Abbas.
He stressed that ""the Palestinians will not leave or make orrepeat the mistakes of the past,"" adding ""this is a fateful momentthat calls on every Palestinian to immediately stand up to defendthe fate of the eternal capital.""
Meanwhile, Abbas criticized Islamic Hamas movement and theIslamic Jihad for boycotting the meeting of the PLO CentralCouncil. The two groups said they decided not to join the meetingbecause it was not held in one of the Arab countries.
""It bothered me a lot that our brothers said at the last minutethat they would not attend because the place of the meeting is notappropriate. Where is the place in their eyes to make fatefuldecisions freely?"" said Abbas.
He went on saying ""I may not blame Islamic Jihad because they donot work in politics puma basket heart patent italia , but what bothers me is our brothers inHamas.""
Speaker of the Council Salim Za'noon said earlier that ""theUnited States is no longer a sponsor of the peace process after itsdeclaration on Jerusalem.
He said that ""any ideas that are traded under the name of 'thedeal of the century' must be confronted. It seeks to impose adeficient solution that does not meet the minimum of our legitimaterights.""
""We must reaffirm the rights of our people to resist theoccupation in its entire legitimate means and to make its costgreat. The Palestinian National Council (PNC) should be consideredas the Legislative Council of t. Cheap NBA Jerseys Wholesale Cheap MLB Jerseys China Cheap MLB Jerseys Online Cheap College Jerseys Online Cheap Jerseys Cheap Jerseys Free Shipping Wholesale NFL Jerseys Cheap NFL Jerseys Cheap NFL Jerseys Cheap Nike NFL Jerseys |
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