Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

7/8/2013 (1 year ago)

Catholic Online (www.catholic.org)

Previously thought sterile, Lake Vostok could hold untold organisms, even fish

Previously thought to be sterile and inhospitable to life, some American scientists now believe that Antarctica's largest and deepest underground lake, Lake Vostok could contain thousands of different tiny organisms -- even fish. A computer analysis of DNA sequences from ice samples proved that Lake Vostok contains a diverse set of microbes, as well as some multi-cellular organisms.

The icy darkness of Lake Vostok, cut off from the outside world for 15 million years, kept under 3,700 meters of ice, provides a glimpse of Earth before the Ice Age.

The icy darkness of Lake Vostok, cut off from the outside world for 15 million years, kept under 3,700 meters of ice, provides a glimpse of Earth before the Ice Age.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

7/8/2013 (1 year ago)

Published in Green

Keywords: Lake Vostok, Antarctic, DNA, life forms, organisms, Bowling Green, Kentucky


LOS ANGELES, CA (Catholic Online) - The icy darkness of Lake Vostok, cut off from the outside world for 15 million years, kept under 3,700 meters of ice, provides a glimpse of Earth before the Ice Age.

Researchers from Bowling Green State University in Ohio, now suggest that the lake harbors plenty of life from bacteria, to complex organisms.

Over 3,500 DNA sequences were identified in samples of ice extracted from the ice, of which 95 percent were associated with types of bacteria. The remaining five percent of the samples contained hints of more complex organisms, called eukaryokes. Two of them were linked to one-called organisms called archaea.
 
Bowling Green State University professor of biological sciences, Dr. Scott Rogers along with his colleagues found sequences that are similar to types of fungi as well as water fleas, arthropods and a mollusk.

Some of the bacteria discovered were commonly found in "fish guts," suggesting that there could be fish in the subterranean lake, according to the research published in the PLOS ONE journal.

"The bounds of what is habitable and what is not are changing," Rogers said.

Located 800 miles from the South Pole and 35 million years ago, when the climate was warmer, Lake Vostok was thought to have been open to the air and surrounded by forests.

"At that time, the lake probably contained a complex network of organisms," researchers said. They think that the organisms were sealed in the lake, which is around a quarter of a mile deep, by the thick ice approximately 15 million years ago.

"While the current conditions are different than earlier in history, the lake seems to have maintained a surprisingly diverse community of organisms.

"These organisms may have slowly adapted to the changing conditions in Lake Vostok during the past 15 to 35 million years when the lake converted from a terrestrial system to a sub glacial system."

Several of the sequences are similar to organisms that live near deep sea thermal vents, leading researchers to believe that Lake Vostok might contain similar features in its icy depths.

"Hydrothermal vents could provide sources of energy and nutrients vital for organisms living in the lake," the scientists said.

The researchers are adamant that they took great pains to prevent contamination of their samples and said that the various sequences were the type that many scientists expected to see in a sub glacial lake.

"Most of the organisms appear to be aquatic (freshwater), and many are species that usually live in ocean or lake sediments," Rogers said.

---


Pope Francis: end world hunger through 'Prayer and Action'


Copywriter 2015 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for May 2015
Universal:
That, rejecting the culture of indifference, we may care for our neighbours who suffer, especially the sick and the poor.
Evangelization: That Mary's intercession may help Christians in secularized cultures be ready to proclaim Jesus.


Rosaries, Crosses, Prayer Cards and more... by Catholic Shopping .com


Comments


More Green

Unexpected find in Washington may be last of its kind Watch

Image of This is the group of dinosaurs the Tyrannosaurus Rex is associated with.

By Nikky Andres (NEWS CONSORTIUM)

When an inter-tidal rock was found in the Sucia Island State Park in Washington State back in 2012, its discoverers had no idea that it would create or cause such excitement and hype. Embedded in the rock is a 17-inch bone fragment, that could not be immediately ... continue reading


DEVASTATING photos show humanity's destruction of Planet Earth Watch

Image of This bird ate too much plastic trash and died, revealing its unnatural diet upon decomposition.

By Catholic Online (NEWS CONSORTIUM)

Humanity's rapid expansion as the global population increases is taking its toll on the environment. Climate change, overpopulation, pollution, hunting of endangered species and strip mining are running rampant worldwide. A series of shocking photographs now ... continue reading


TOO SOON? Canonization of Mother Teresa next year only hypothetical, Vatican says Watch

Image of There had been reports in the Italian press that Mother Teresa, the founder of the Missionaries of Charity, who worked among the poorest of the poor, would be canonized before the end of the upcoming Holy Year of Mercy.

By Catholic Online (NEWS CONSORTIUM)

In spite of various published reports that Blessed Teresa of Kolkata will be canonized on September 4, 2016, the Vatican says that this remains hypothetical. "It is a working hypothesis, therefore there is no official confirmation to be given," Vatican representative ... continue reading


2020: Antarctic ice shelf could collapse Watch

Image of Land-based glaciers that have also started to slide faster toward the sea.

By Catholic Online (NEWS CONSORTIUM)

The rich get richer, the poor get poorer and those polar ice caps keep right on melting. Things have deteriorated so badly - especially the Larsen B ice shelf, that scientist now fear the entire Antarctica ice shelf will collapse by the end of this decade, in ... continue reading


Raining spiders? Large areas of Australia covered in spider webs Watch

Image of Baby spiders

By Atarah Haely (NEWS CONSORTIUM)

The worst news for spider haters in Australia and around the globe: a natural migration phenomenon where baby spiders are flying is possible and has recently happened in the southern part of Australia. MUNTINLUPA, PHILIPPINES (Catholic Online) - Referred to as "Angel ... continue reading


HONEY HOLOCAUST: Forty percent of all beehives died in the past year Watch

Image of Oklahoma, Illinois, Iowa, Delaware, Maryland, Pennsylvania, Maine and Wisconsin all saw more than 60 percent of their hives die since April of last year.

By Catholic Online (NEWS CONSORTIUM)

It is an alarming figure that may speak of a silent, ecological disaster. According to a federal study, more than two out of five American honeybee colonies died in the past year. LOS ANGELES, CA (Catholic Online) - The survey reports that the worst die-off ... continue reading


Recreating Dinosaurs: Using chicken embryos, scientists learn how dinosaurs got 'snouts' Watch

Image of The team's aim was to understand how the bird beak evolved, because the beak is such a vital part of bird anatomy.

By Catholic Online (NEWS CONSORTIUM)

An asteroid, crashing into the Earth 65 million years ago, is thought to have caused the dinosaurs to go extinct. A group of dinosaurs managed to survive, and is thought to have evolved into modern-day birds. That theory has been around since the 19th Century. ... continue reading


Catfish surprisingly climbs wall and stuns scientists Watch

Image of

By Atarah Haely (NEWS CONSORTIUM)

Inside a cave near Tena in Ecuador, a group of scientists filmed a catfish climbing up the wall to lick food from the roof. Climbing seems impossible for fishes, but evidence of an actual video showing an armored catfish making its way up the cave wall presents a new ... continue reading


Climate change to cause animal extinction in next century Watch

Image of New Zealand's tuataras will be one of the species affected by climate change.

By Nikky Andres (NEWS CONSORTIUM)

In the next century or so, one in six species of plants and animals are likely to be extinct in South America, New Zealand, and Australia. Species in North America are at a lower risk of being extinct. MUNTINLUPA, PHILIPPINES (Catholic Online) - According to a study ... continue reading


'Empty landscapes': Massive herbivore extinction in Southeast Asia hurts environment Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

Oxford University researchers observed a rapid decline among large herbivores living in the rainforests, savannah and jungles located in Southeast Asia, as well as in India and Africa. MUNTINLUPA, PHILIPPINES (Catholic Online) - According to the experts, this ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Daily Readings

Reading 1, Acts 25:13-21
13 Some days later King Agrippa and Bernice arrived ... Read More

Psalm, Psalms 103:1-2, 11-12, 19-20
1 [Of David] Bless Yahweh, my soul, from the depths ... Read More

Gospel, John 21:15-19
15 When they had eaten, Jesus said to Simon Peter, ... Read More

Saint of the Day

Saint of the Day for May 22nd, 2015 Image

St. Rita
May 22: St. Rita was born at Spoleto, Italy in 1381. At an early age, ... Read More

Inform, Inspire & Ignite Logo

Find Catholic Online on Facebook and get updates right in your live feed.

Become a fan of Catholic Online on Facebook


Follow Catholic Online on Twitter and get News and Product updates.

Follow us on Twitter