Icebergs freed by climate change decimate Antarctic sea life


mentalfloss
#1
Icebergs freed by climate change decimate Antarctic sea life

Roving icebergs unleashed by climate change have decimated the variety of life on the sea floor near the West Antarctic Peninsula in just 16 years, according to a new study.

Researchers with the British Antarctic Survey looked at a 500-square-metre patch of sea floor in 1997, and found the boulders were crusted with a colourful, diverse patchwork of creatures called "moss animals," a group of invertebrates that live like corals, but are not closely related to them. Like corals, they are filter-feeding animals that live in colonies, and can have hard or soft bodies.

'It's catastrophic, really. They kill 99 per cent of things they come in contact with.'- David Barnes, British Antarctic Survey
But when researchers returned in 2013, only a single species – a fast-growing moss animal called Fenestrulina rugula — was visible on most rocks, they reported in the journal Current Biology this week. Other species had become extremely rare.

But when researchers returned in 2013, only a single species – a fast-growing moss animal called Fenestrulina rugula — was visible on most rocks, they reported in the journal Current Biology this week. Other species had become extremely rare.

"The structure of biodiversity has fundamentally changed," said David Barnes, lead author of the study. "Although the same species are still there, most of them are now so vanishingly rare, that they effectively play no part in the system."


The fast-growing moss animal Fenestrulina rugula was the only species that was still common on the boulders on the sea floor in the study area in 2013.(David Bowden)
The culprit? Icebergs.

Huge Antarctic ice sheet collapsing
As the glaciers retreat and the ice shelves collapse on the West Antarctic Peninsula, they break off into floating chunks of ice, some of them extremely massive.

Fifty years ago, icebergs couldn't move around much because most years, the sea surface was frozen for much of the year. But recently, Barnes said, most years, the sea is frozen for less than 50 days a year. That leaves the icebergs free to drift and blow in the wind until they crash boulders on the sea floor, pounding and scraping away everything that lived on them.

"It's catastrophic, really," Barnes said. "They kill 99 per cent of things they come in contact with."

Icebergs freed by climate change decimate Antarctic sea life
 
Walter
+4
#2  Top Rated Post
What a load of crap.
 
mentalfloss
#3
Which part?
 
Retired_Can_Soldier
+4
#4
Quote: Originally Posted by mentalflossView Post

Which part?

The whole enchilada...
 
EagleSmack
+3
#5
At one point in time all of Canada was buried under glaciers a mile thick before one lump of coal was burned.
 
petros
+3
#6
I guess he never heard of the volcanic eruptions melting antarctic western peninsula sea and continental ice?
 
EagleSmack
#7
Quote: Originally Posted by petrosView Post

I guess he never heard of the volcanic eruptions melting antarctic western peninsula sea and continental ice?


An Inconvenient fact.
 
petros
+2
#8
Quote: Originally Posted by Retired_Can_SoldierView Post

The whole enchilada...

Mexican food has melted it's share of sea ice over the years. That's fact.

Quote: Originally Posted by EagleSmackView Post

An Inconvenient fact.

Like the massive thousands of km long one under the Atlantic that is still building Iceland which is still icy even though fairly freakin' warm?

Lots of GHG being released. Millions of tonnes a day. Nonstop 24/7/365. Even Jewish holidays.





AGW GHGs....snicker....

Man broke the ocean with CO2 and now it leaks CH4, CO2 and H2S

 
Praxius
+1
#9
Quote: Originally Posted by EagleSmackView Post

At one point in time all of Canada was buried under glaciers a mile thick before one lump of coal was burned.



6 months out of the year, it still is
 
petros
#10
All that cold beer but the outhouse is 30m from the house.
 
damngrumpy
+4
#11
Just a short time ago there were reports of volcanic eruptions under the ice on
that remote continent. Notice every time something happens it global warming.
nonsense
 
mentalfloss
#12
Quote: Originally Posted by Retired_Can_SoldierView Post

The whole enchilada...

How?
 
55Mercury
+3
#13
if it's not plain to you it would be useless to try explaining

seriously. they're basing their finding on a 500 sq. m. patch? you call that science? ever heard ice floats?

the sky must surely be falling
 
mentalfloss
#14
How does the area remove the significance of the findings?
 
captain morgan
+2
#15
Quote: Originally Posted by mentalflossView Post

How does the area remove the significance of the findings?


Quote: Originally Posted by 55MercuryView Post

if it's not plain to you it would be useless to try explaining

.......
 
taxslave
+1
#16
Quote: Originally Posted by mentalflossView Post

How does the area remove the significance of the findings?

There was no significance to begin with. Just fluff. One dragger destroys more seafloor than that every single set.
 
Zipperfish
#17
Quote: Originally Posted by EagleSmackView Post

An Inconvenient fact.

Also inconvenient that the authors of the "undersea volcano" study indicated that glacier collapse was due to warming oceans as well as geothermal heat.
 
EagleSmack
#18
Quote: Originally Posted by damngrumpyView Post

Just a short time ago there were reports of volcanic eruptions under the ice on
that remote continent. Notice every time something happens it global warming.
nonsense


Right Winger
 
darkbeaver
+1
#19
The ice exterminated all life on the continent of Antarctica not very long ago. If it were to disappear much of that life would return in the first year. The CO2 smokers are a selective bunch of envirofreaks. They don't like progress and they don't like regress, nothing will satisfy them till the carbon tax kills us all.

Quote: Originally Posted by ZipperfishView Post

Also inconvenient that the authors of the "undersea volcano" study indicated that glacier collapse was due to warming oceans as well as geothermal heat.

Wouldn't geothermal warm the water sitting on the geo?
 
Retired_Can_Soldier
#20
Quote: Originally Posted by mentalflossView Post

How?

See: Icebergs decimating sea life connected to Global Warming (external - login to view)
 
petros
#21
Quote: Originally Posted by ZipperfishView Post

Also inconvenient that the authors of the "undersea volcano" study indicated that glacier collapse was due to warming oceans as well as geothermal heat.

Before you knew that volcanism was there you swore up and down it was because of CO2. Warming oceans and geothermal heat caught up within the circumpolar currents. Coinky?
 
B00Mer
#22
Screw Global Warming, we all got'a die sometime and I don't have any kids, let somebody else's brat deal with it in 50 years...

Isn't nature and our environment around us just too cool..

Just on the 16th of June, 2014 check out these twin tornadoes..

6162014 Pilger NE Twin Tornadoes - Laubach - YouTube

 
petros
#23
Close but no sitar for here. Sooner or later somewhere in SK somebody is going to have a bad day this summer. Oh well. It could be a tropical earthquake but we don't live far enough north.
 
darkbeaver
+1 / -1
#24
All this volcanic activity must be expelling many tons of CO2. That's just silly though cuz scientist tell us the CO2 leads the heat. I have to conclude that science indicates CO2 causes lava spumes. When will we be saved from the evil of this insidious satanic gas demon.

I have to intoxicate myself every night to escape it's hideous visage and it's interminable moaning.
 
Walter
+1
#25
Quote: Originally Posted by darkbeaverView Post

All this volcanic activity must be expelling many tons of CO2. That's just silly though cuz scientist tell us the CO2 leads the heat. I have to conclude that science indicates CO2 causes lava spumes. When will we be saved from the evil of this insidious satanic gas demon.

I have to intoxicate myself every night to escape it's hideous visage and it's interminable moaning.

I'll drink to that.
 

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