May 30, 2012
Publicado por Persiventana Solutions en 3:37:00 PM
Publicado por Persiventana Solutions en 11:24:00 AM
May 29, 2012
May 25, 2012
An international team of scientists found bacteria that survive, with an extremely slow metabolism in sediments under the ocean floor dating back 86 million years, said this week the journal Science.Some of these organisms, which live about 30 meters deep in the Pacific ocean floor and away from sunlight and fresh nutrients, may have a thousand years old, or perhaps millions, according to researchers.
"The communities of microbes can survive deep in marine sediments without a fresh supply of organic matter over millions of years," said the team led by Hans Roy, University of Aarhus, Denmark.These organisms have adapted to exist in a place with so few resources, slowing their metabolism so much that they can feed on small quantities of oxygen and a paltry diet of organic matter.
"These organisms live with that parsimony which, when observed with our time scale is almost suspended animation," added Roy."The main lesson is that we must stop thinking of life solely in accordance with our scale of time," he added.
Research has connotations also for scientists seeking life on other planets and galaxies, where there are environmental conditions that are considered inhospitable to Earth.
Roy's team sailed to a place in the Pacific between Ecuador and latitude 30 North and longitudes 140 and 155 West, away from larger continental masses, and, thus, away from the wind-blown dust or sediment moved by ocean currents.
This ensured that the seabed would be essentially a desert which has fallen on very little organic matter.
Scientists were surprised when they found more microbes in the upper layer of sediment on the bottom, but even at the lower end of the samples taken in a red clay had not been exposed to oxygen, sunlight or materials nutrients from the Cretaceous period, found living bacteria.
"These microbes have not received nutrients since dinosaurs roamed the planet," said Roy, and stressed that "bacteria that survive there are those who have been able to survive on the minimum amount of food."
Publicado por Persiventana Solutions en 12:07:00 PM
May 22, 2012
May 12, 2012
Extraordinary footage of a killer whale attack on a Gray whale calf, when humpback whales arrive and try to intervene.
Publicado por Persiventana Solutions en 4:33:00 AM
May 10, 2012
The United States Navy's DARPA program is seling its $195 million Sea Shadow stealth boat prototype. The opening bid? Only $50,000 with a $10,000 deposit! The ship was made famous by being the inspiration for the villian's seacraft in the James Bond movie "Tomorrow Never Dies." Patrick Jones has more.
Publicado por Persiventana Solutions en 12:39:00 PM
The mystery about a video showing a purported "unidentified sea creature" captured by a robot near the Petrobras Cascade field in the Gulf of Mexico was finally clarified by experts.
At the request of the BBC, some marine biologists observed the images and offered their verdict likely on the "foreign body". According to them the consistency of the material, the "creature" would actually just expelled the placenta of a whale.
"Material characteristics resemble those of the placenta of a whale. A whitish in some areas is typical of the contact of the meat with sea salt water," said biologist Marcelo Szpilman, director of the Institute of Ecology Aqualung.
"In addition, the material is moving, being carried by currents, which invalidates the thesis that it is a living animal," said Szpilman.Según biologists, the placenta could be a large whale that inhabits great depth, like a sperm whale.
Posted in YouTube, the video for about 6 minutes caused a stir in social social networks with more than half a million hits since it was published on April 27.
Amid the controversy, users of the site began throwing assumptions about what would be the "creature". Some claimed that it would be a "giant jellyfish", others just a "fishing net" in the depths of the ocean Atlántico.En October 2008, the video of a giant squid fighting a robot Petrobras ended up on the internet.
The video, captured on April 25, you have the logos of Petrobras and U.S. firm Ocearneering.
Oceaneering was contracted by the Brazilian oil company to operate the equipment known as ROV (operated underwater vehicle), a sort of mini-submarine, which, equipped with video cameras and sensors, monitors real-time operation of the oil exploration and production in the seabed. Petrobras is not officially confirmed the authorship of the video.
In late February, the Brazilian oil company began producing in the field of Cascade, located 250 kilometers off the coast of Louisiana, USA in the Gulf of Mexico, through the well Cascade 4.
Exploitation, of 8000 meters vertical depth, is via the BW Pioneer spacecraft platform, with capacity to process 80,000 barrels of oil and 500 thousand cubic meters of gas per day.