Glacial Melting Dries Up Oceanic Food Chain
Harry Hope
http://www.thecuttingedgenews.com/index.php?article=11869
December 28th 2009
Glacial Melting Dries Up Oceanic Food Chain
By Sherri Richardson Dodge
A study recently completed in the gulf coast of Alaska by federal and
university researchers has found that as glacial ice disappears, the
production and export of high-quality food from glacial watersheds to
marine ecosystems may disappear too.
This trend could have serious consequences for marine food webs.
The research, which was conducted on 11 coastal watersheds in the Gulf
of Alaska, has documented an interesting paradox with important
implications for coastal ecosystems.
"Glacial watersheds comprise 30 percent of the Tongass National Forest
and supply about 35 to 40 percent of the stream discharge," says Rick
Edwards, a coauthor on the study.
"These watersheds export dissolved organic matter that is remarkably
biologically active in contrast to that found in other rivers.
Generally, scientists expect that organic matter decreases in its
quality as a food source as it ages, becoming less and less active
over time."
But the dissolved organic material discharged from the glacial
watersheds in this study was almost 4,000 years old;
yet surprisingly, more than 66 percent of it was rapidly metabolized
by marine microbes into living biomass to support marine food webs,
adds Edwards.
The study was conducted by Eran Hood, University of Alaska Southeast;
Jason Fellman, University of Alaska Fairbanks; Robert Spencer and
Peter Hernes, University of California Davis; Rick Edwards and David
D'Amore, Pacific Northwest (PNW) Research Station, USDA Forest
Service; and Durelle Scott, Virginia Tech.
Edwards and D'Amore partnered with their university colleagues to
characterize the dominant types of watersheds and variables that
control the volume and chemistry of water flowing into the gulf.
.......................................................................................................................
Rivers ringing the gulf coast of Alaska discharge as much water as the
Mississippi River into a marine system that harbors the most
productive salmon fishery in the world.
As these rivers flow through the temperate rain forests on the coastal
margin, they are influenced by vegetation, soils and wetlands, which
control the amount and timing of carbon and nutrients delivered to the
productive coastal ecosystems receiving that drainage.
"Understanding how these various watersheds respond to management
activities and climate change is essential in mitigating the impacts
of a warming climate on habitat quality within rivers and productivity
within the adjacent marine ecosystem," explains Edwards.
"We don't currently have much information about how runoff from
glaciers may be contributing to productivity in downstream marine
ecosystems," said Hood.
"This is a particularly critical question given the rate at which
glaciers along the Gulf of Alaska are thinning and receding."
Highlights of the study include:
The greater the amount of glacier in the watershed, the older the
dissolved organic matter and the more available it is to marine
organisms.
These results support the hypotheses that microbial communities
beneath the glaciers grow on soils and forests overrun by the glaciers
during the Hypsithermal warm period (between 7,000-2,500 years ago).
As they degrade the ancient material, they make new food from old
carbon.
The quality of the dissolved organic matter is so high that 23 to 66
percent is used by marine micro-organisms and incorporated into food
webs supporting higher organisms.
As glaciers recede and disappear, the input of this valuable food
source will decrease with unknown impacts on productivity of marine
food webs.
____________________________________________________
Harry
Last Post
> http://www.thecuttingedgenews.com/index.php?article=11869
>
> December 28th 2009
>
> Glacial Melting Dries Up Oceanic Food Chain
>
with real facts, instead of propaganda nonsense?
–– ––
Political correctness is destroying Europe.
America will be the next down the PC tube
greased by academic idiots like Scott Erb,
Noam Chumpsky, Ward Churchill, and
Slick Willy & Hilly, Algore & Pelosi, and
now Barak Hussein Muhammad Obama, too.
Roger Dewhurst
Drivel. The bottom of the food chain are the microflora. The
microflora, as all plants do, feed on simple inorganic molecules, not
organic molecules. Piss off and learn a bit of basic botany.
R
Kevin Cunningham
> On Dec 28, 5:10 pm, Harry Hope <riv...@ix.netcom.com> wrote:>http://www.thecuttingedgenews.com/index.php?article=11869
>
> > December 28th 2009
>
> > Glacial Melting Dries Up Oceanic Food Chain
>
> • WHEN Harry, are you going to post an article
> with real facts, instead of propaganda nonsense?
> –– ––
So why haven't you posted the magic paper that will destroy all we
global warming weirdos, the paper that shows global warming to be a
hoax.
Oh, I forgot, you have to have some facts and you don't.
Face it, scum boui, you are too cowardly to post a fact. You haven't
posted one.
And why is that? Because you don't have any facts.
Bret Cahill
Shrikeback
> >http://www.thecuttingedgenews.com/index.php?article=11869
>
> > December 28th 2009
>
> > Glacial Melting Dries Up Oceanic Food Chain
Why do you bother quoting these moonbat 9-11 Truther
sites on climate change? Trying to do a guilt by association
thing?
Bret Cahill
> > > December 28th 2009
>
> > > Glacial Melting Dries Up Oceanic Food Chain
The study was conducted by Eran Hood, University of Alaska Southeast;
Jason Fellman, University of Alaska Fairbanks; Robert Spencer and
Peter Hernes, University of California Davis; Rick Edwards and David
D'Amore, Pacific Northwest (PNW) Research Station, USDA Forest
Service; and Durelle Scott, Virginia Tech.
> Why do you bother quoting these moonbat 9-11 Truther
> sites on climate change?
It's not my fault they don't appreciate dowsers.
> Trying to do a guilt by association
> thing?
A few years ago you drank the BushCo jingoism koolaid.
A few weeks ago you drank the hacked email koolaid.
A few days ago you drank the LaRouche koolaid.
You really need to cut back on the koolaid.
Bret Cahill
Lamont Cranston
news:86b46f48-b5d7-49fd...@z40g2000vba.googlegroups.com
> On Dec 28, 5:10 pm, Harry Hope <riv...@ix.netcom.com> wrote:
>> http://www.thecuttingedgenews.com/index.php?article=11869
>>
>> December 28th 2009
>>
>> Glacial Melting Dries Up Oceanic Food Chain
>>
> with real facts, instead of propaganda nonsense?
TRANSLATION: I am unable to refute anything in the article.
Lamont Cranston
news:b6a82977-d31a-4ce3...@v25g2000yqk.googlegroups.com
> On Dec 28, 5:44 pm, Last Post <last_p...@primus.ca> wrote:
>> On Dec 28, 5:10 pm, Harry Hope <riv...@ix.netcom.com>
>> wrote:>http://www.thecuttingedgenews.com/index.php?article=11869
>>
>>> December 28th 2009
>>
>>> Glacial Melting Dries Up Oceanic Food Chain
>>
>> with real facts, instead of propaganda nonsense?
>
> So why haven't you posted the magic paper that will destroy all we
> global warming weirdos, the paper that shows global warming to be a
> hoax.
>
> Oh, I forgot, you have to have some facts and you don't.
>
> Face it, scum boui, you are too cowardly to post a fact. You haven't
> posted one.
>
> And why is that? Because you don't have any facts.
These morons don't need facts. They have Limbaugh.
*us*
Are you gonna take it up with the actual sources?
Do get back to us on how that works out for you.
>microflora
Do you imagine that term had appeared in the article?
>... as all plants do, feed on simple inorganic molecules, not
>organic molecules...
Why do you believe that would be all?
Do you not know what "microflora" actually means,
or what plants actually consume?
Ouroboros Rex
As usual, the denialist just makes some shit up.
Roger Dewhurst
With a degree in botany I do know those answers.
*us*
Well?
>> Do get back to us on how that works out for you.
>>
>>> microflora
>>
>> Do you imagine that term had appeared in the article?
Do you?
>>> ... as all plants do, feed on simple inorganic molecules, not
>>> organic molecules...
>>
>> Why do you believe that would be all?
>>
>> Do you not know what "microflora" actually means,
>> or what plants actually consume?
>
>With a degree in botany I ...
Too bad you can't get your tuition money refunded.
You didn't manage to learn enough: you can't even read.
JohnM
This same story on wattsupwiththat indicates just who the moonbats
might be.
Shrikeback
> > Trying to do a guilt by association
> > thing?
>
> A few years ago you drank the BushCo jingoism koolaid.
>
> A few weeks ago you drank the hacked email koolaid.
>
> A few days ago you drank the LaRouche koolaid.
>
> You really need to cut back on the koolaid.
Always lying so obviously. Your check from CEI is in the
mail.
Shrikeback
> > > > December 28th 2009
>
> > > > Glacial Melting Dries Up Oceanic Food Chain
>
> The study was conducted by Eran Hood, University of Alaska Southeast;
> Jason Fellman, University of Alaska Fairbanks; Robert Spencer and
> Peter Hernes, University of California Davis; Rick Edwards and David
> D'Amore, Pacific Northwest (PNW) Research Station, USDA Forest
> Service; and Durelle Scott, Virginia Tech.
Then cite the study, not the hysterical greentard simplified version
for the hard of doubting.
Shrikeback
Interesting. Yes, from wattsupwiththat.com:
http://wattsupwiththat.com/2009/12/28/glacier-melt-discovered-to-have-an-upside/
Glaciers along the Gulf of Alaska are enriching stream and near shore
marine ecosystems from a surprising source – ancient carbon contained
in glacial runoff, researchers from four universities and the U.S.
Forest Service report in the December 24, 2009, issue of the journal
Nature*.
In spring 2008, Eran Hood, associate professor of hydrology with the
Environmental Science Program at the University of Alaska Southeast,
set out to measure the nutrients that reach the gulf from five
glaciated watersheds he can drive to from his Juneau office. “We don’t
currently have much information about how runoff from glaciers may be
contributing to productivity in downstream marine ecosystems. This is
a particularly critical question given the rate at which glaciers
along the Gulf of Alaska are thinning and receding” said Hood.
That is why you might not want to git your whole image of the
study from moonbats.com.
Shrikeback
That's called hyperbole. And the central point stands. An
ideological site is an ideological site. A is A, more or less,
given the Uncertainty Principle.
Fred Weiss
> Interesting. Yes, from wattsupwiththat.com:
>
> http://wattsupwiththat.com/2009/12/28/glacier-melt-discovered-to-have...
Must be a bunch of fossil fuel industry shills and/or creationists.
Fred Weiss
Michael Gordge
> As usual, the denialist just makes some shit up.
Do ewe deny man making the globe hot and cold by fucking around with
Co2 is a hoax? Are ewe a hoax denier?
MG
Chaos out of Order
So the facts are real when they fit into your world view? You are the
arbiter of what are facts?