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Giant Amoebas Discovered in Deepest Ocean Trench
OurAmazingPlanet.com ^ | 10/21/11

Posted on 10/21/2011 9:39:48 PM PDT by NormsRevenge

Gigantic amoebas have been found in the Mariana Trench, the deepest region on Earth.

During a July 2011 voyage to the Pacific Ocean chasm, researchers with Scripps Institution of Oceanography at UC San Diego and National Geographic engineers deployed untethered landers, called dropcams, equipped with digital video and lights to explore the largely mysterious region of the deep sea.

The team documented the deepest known existence of xenophyophores, single-celled animals exclusively found in deep-sea environments. Xenophyophores are noteworthy for their size, with individual cells often exceeding 4 inches (10 centimeters), their extreme abundance on the seafloor and their role as hosts for a variety of organisms.

Extreme environment, extreme creature

The researchers spotted the life forms at depths up to 6.6 miles (10,641 meters) within the Sirena Deep of the Mariana Trench. The previous depth record for xenophyophores was approximately 4.7 miles (7,500 m) in the New Hebrides Trench, although sightings in the deepest portion of the Mariana Trench have been reported.

Scientists say xenophyophores are the largest individual cells in existence. Recent studies indicate that by trapping particles from the water, xenophyophores can concentrate high levels of lead, uranium and mercury and are thus likely resistant to large doses of heavy metals. They also are well suited to a life of darkness, low temperature and high pressure in the deep sea.

Scripps ocean engineer Kevin Hardy (right) and marine technician Josh Manger prepare to test Hardy's deep-sea lander at Scripps' Nimitz Marine Facility. Credit: Scripps Institution of Oceanography at UC San Diego

"The identification of these gigantic cells in one of the deepest marine environments on the planet opens up a whole new habitat for further study of biodiversity, biotechnological potential and extreme environment adaptation," said Doug Bartlett, the Scripps marine microbiologist who organized the expedition.

(Excerpt) Read more at ouramazingplanet.com ...


TOPICS: Chit/Chat; Science
KEYWORDS: amoeba; amoebas; deepest; discovered; giant; mariana; marianatrench; ocean; trench; xenophyophores
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To: Salamander

If he was trying to induce vomiting, he could’ve just made it sit through his audition tape


41 posted on 10/21/2011 11:16:42 PM PDT by Osamabindead
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To: Salamander

Egads, I saw The Black Hole in the movie theater. Thirty years later I’m still seeing those stupid robots that spoke with Slim Pickins and Roddy McDowell’s voices. And the giant erector set in space.


42 posted on 10/21/2011 11:23:58 PM PDT by Darkwolf377 (Obama: The stupid person`s idea of a smart person.)
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To: Osamabindead

Roughly 1/10th the size of Gene Roddenberry’s ego?


43 posted on 10/21/2011 11:25:17 PM PDT by Darkwolf377 (Obama: The stupid person`s idea of a smart person.)
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To: ModelBreaker

or the kitchen table....


44 posted on 10/22/2011 1:44:57 AM PDT by JSteff ((((It was ALL about SCOTUS. Most forget about that and HAVE DOOMED us for a generation or more.))))
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To: theDentist
Uhm, the article cited does say 4 inches... proving any of us can speed read, but not all can speed comprehend..:-)
45 posted on 10/22/2011 1:47:52 AM PDT by JSteff ((((It was ALL about SCOTUS. Most forget about that and HAVE DOOMED us for a generation or more.))))
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To: stickywillie
How do you think Obama was elected? They are a liberals dream.. even after you register them to vote they can divide and now there are two.. then four.. then eight...

sort of like some districts in Philly where there are more voters than citizens... same thing I guess..

And most likely they will also NEVER have a super bowl or baseball world champion either...
46 posted on 10/22/2011 1:54:59 AM PDT by JSteff ((((It was ALL about SCOTUS. Most forget about that and HAVE DOOMED us for a generation or more.))))
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To: All

...MEG Hell’s Aquarium...it was a pretty good book.


47 posted on 10/22/2011 2:25:32 AM PDT by Irenic
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To: Darkwolf377
Those were bryozoans.
48 posted on 10/22/2011 5:51:00 AM PDT by Eric in the Ozarks
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To: theDentist

Um, in your science education, did you learn that an amoeba is a ONE-CELLED creature?


49 posted on 10/22/2011 6:54:47 AM PDT by MHGinTN (Some, believing they can't be deceived, it's nigh impossible to convince them when they're deceived.)
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To: rhinohunter

Your finger glued to the post button?


50 posted on 10/22/2011 7:00:31 AM PDT by Hot Tabasco (I guess some people are born with a need to be pissed off about something........)
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To: theDentist; MHGinTN
I think it said just one of it’s [sic] cells exceeded 4 inches.

The team documented the deepest known existence of xenophyophores, single-celled animals exclusively found in deep-sea environments. Xenophyophores are noteworthy for their size, with individual cells often exceeding 4 inches (10 centimeters)...

They were referring to individuals of the same group of single-celled animals, not cells of a single individual--ha ha, individual, I just got what that actually means. A single-celled animal really is individual.
51 posted on 10/22/2011 7:02:45 AM PDT by aruanan
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To: aruanan

"So, you think you're an individual. Is that it, Private Xenophyophore?"

52 posted on 10/22/2011 8:45:59 AM PDT by TigersEye (Life is about choices. Your choices. Make good ones.)
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To: heartwood
When I was in high school, there was a one-act play that scared the bejeebers out of me. The Amoeba. The four-foot amoeba. Big enough to skeletonize its victims in three seconds of pitch black.

Sounds a bit like "The Blob".

The original 1958 version scared the crap out of me when I saw it back then. Very little special effects, blood or gore but still very creepy.

Four inches. That's okay then.

Uh, no it's not. The Blob started out at about 4 inches too until it started eating people. Think I'll start stockpiling some CO2 extinguishers. :D

53 posted on 10/22/2011 9:12:56 AM PDT by Jed Eckert
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To: MHGinTN

I likely did, yet I never pursued a career where dealing with amoeba was an important part of my daily life.


54 posted on 10/22/2011 9:32:47 AM PDT by theDentist (fybo; qwerty ergo typo : i type, therefore i misspelll)
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To: ModelBreaker
Then I’ll make sure not to try to site a business anywhere near them.

Why not? That would be a perfect spot for a smelter.

Recent studies indicate that by trapping particles from the water, xenophyophores can concentrate high levels of lead, uranium and mercury and are thus likely resistant to large doses of heavy metals.

55 posted on 10/22/2011 10:25:28 AM PDT by Mind-numbed Robot
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To: NormsRevenge
They also are well suited to a life of darkness, low temperature and high pressure in the deep sea.

I was under the impression that high pressure resulted in high temperature rather than low.

56 posted on 10/22/2011 10:29:06 AM PDT by Mind-numbed Robot
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