Under The Ice Lurks A 'Strange' Arctic Monster

Sharks in the News
Under The Ice Lurks A 'Strange' Arctic Monster
May 6, 2008
Release from: Tom Spears Ottawa Citizen (Canada) Canadian fish scientists are opening a window into the mysterious world of the Greenland shark -- the top predator in the Canadian Arctic about which almost nothing is known.
Except this, says Steve Campana of the Bedford Institute of Oceanography: "These are very, very strange sharks."
Its meat is poison. Its mouth is far under its body. It has almost no spine. It's so lethargic that it doesn't even snap at the scientists who hook it and attach a radio to it.
And it may live 200 years.
Mr. Campana and Aaron Fisk of the University of Windsor took their team to the sea ice 300 kilometres north of Iqaluit, camping out in a frigid plywood shed in April to tag and release Greenland sharks.
Only one other big shark in the world is almost unknown -- the extremely rare deep-ocean "megamouth."
Why study the Greenland shark?
In the eastern Arctic "this is the apex (top) predator, the king of the food web, along with the polar bear. There's a sister species in the western Arctic. And as with any ecosystem, if you don't know anything about the apex predator, you're in a lot of trouble figuring out what's going on."
Everything about this fish is odd, Mr. Campana says.
"They are really the antithesis to the fast-swimming great white and mako (sharks)."
The cold water might make them slow, but even in warmer water they just cruise along the bottom, slurping up fish, and occasionally seals. The seals may be dead when the sharks eat them. No one really knows.
Researchers are hoping that samples of bone may hint at a fish's age; the team will look for radioactive elements released during atmospheric tests of nuclear weapons, to show which fish were alive in the 1960s.
The Greenland shark can grow to eight metres and has hundreds of sharp teeth.
"Just running your hand lightly along them you can slice yourself wide open," says Mr. Campana.
"When we found a dead shark we would open up its stomach. Every single one was jam-packed with food. A lot of it was large fish," but there were some baby seals.
It's possible the shark scavenged dead seals, but seals are also known to be curious, and some young ones may have wanted too close a look at the shark.
The sharks are incredibly abundant, says Mr. Campana, "and yet we don't have a clue how fast they grow, how old they get, where they give birth, how many they give birth to..."
The team is using radio tags, which don't hurt the sharks, to record information about their living conditions (water temperature and light) and location. The tags are programmed to release months later and then "pop up" to the surface and radio their findings to a satellite.
Inuit fisherman often catch them by accident, hooking a turbot that a shark then bites on the hook.
The meat is poison if cooked like normal fish, so full of urea that it takes boiling and re-boiling to make it safe.
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1 posted on
07/11/2008 7:49:29 AM PDT by
Stoat
To: Stoat
They are cannibalistic but their flesh is poisonous to any other creature.This applies to lawyers also.
2 posted on
07/11/2008 7:52:14 AM PDT by
central_va
(Co. C, 15th Va., Patrick Henry Rifles-The boys of Hanover Co.)
To: pcottraux; SunkenCiv
“Mysterious Huge Seal-Sucking Arctic Shark Ping”
3 posted on
07/11/2008 7:52:14 AM PDT by
Stoat
(Rice / Coulter 2012: Smart Ladies for a Strong America)
To: Stoat
4 posted on
07/11/2008 7:54:10 AM PDT by
ryan71
(Typical bitter white gun toter)
To: Stoat
What’s that thing hanging off the shark’s eye?
To: Stoat
“Boffins”? What are boffins?
To: Stoat
Nice photo of Hillary! She’s looking much better since she suspended her campaign :-) Course, she’s still poisonous to others.
9 posted on
07/11/2008 7:58:47 AM PDT by
ushr435
To: Stoat
Shark is being represented by American Trial Lawyers Assoc. at no charge - a professional courtesy.
12 posted on
07/11/2008 8:01:07 AM PDT by
ikka
To: Stoat
14 posted on
07/11/2008 8:01:51 AM PDT by
Disturbin
(Liberals: buying votes with your tax dollars)
To: Stoat
I believe these are called Sleeper sharks
18 posted on
07/11/2008 8:03:30 AM PDT by
nuconvert
(Obama - Preferred by 4 out of 5 Dictators & Terrorists)
To: Stoat
Seals slide into ocean due to global warming melting Arctic ice cap - Sharks Delighted!
To: newgeezer
28 posted on
07/11/2008 8:11:53 AM PDT by
DungeonMaster
(Obamafeld, "A CAMPAIGN ABOUT NOTHING".)
To: Stoat
"Big sucker, the shark."
Big hitter, the Lama.
To: Stoat
36 posted on
07/11/2008 8:28:47 AM PDT by
Conspiracy Guy
(I voted Republican because no Conservatives were running.)
To: Stoat
The meat is poison if cooked like normal fish, so full of urea that it takes boiling and re-boiling to make it safe. Or you could take the Icelander route and let it rot for months on end.
39 posted on
07/11/2008 8:33:11 AM PDT by
aft_lizard
(One animal actually its eats its own brains to conserve energy, we call them liberals.)
To: Stoat
To: Stoat
47 posted on
07/11/2008 8:47:39 AM PDT by
Sax
(this idea was not a practical deterrent, for reasons which, at this moment, must be all too obvious)
To: Stoat; blam; StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; ...
56 posted on
07/11/2008 9:23:04 AM PDT by
SunkenCiv
(https://secure.freerepublic.com/donate/_________________________Profile updated Friday, May 30, 2008)
To: Stoat
Why study the Greenland shark? In the eastern Arctic "this is the apex (top) predator, the king of the food web, along with the polar bear. There's a sister species in the western Arctic. And as with any ecosystem, if you don't know anything about the apex predator, you're in a lot of trouble figuring out what's going on."
Apex Predator??? Can a shark that is clearly built to scavange the ocean's bottom for DEAD STUFF be considered an "Apex Predator"?
Consider this cr@ppy science reporting the next time a 'journalist' tries to convince you of the validity of Global Warming (or any other dubious scientific theory)!
68 posted on
07/11/2008 4:32:18 PM PDT by
Tallguy
(Tagline is offline till something better comes along...)
To: Stoat
72 posted on
07/12/2008 2:00:08 AM PDT by
Eye of Unk
(The world WILL be cleaner, safer and more productive without Islam.)
To: Stoat
“Just running your hand lightly along them you can slice yourself wide open,” says Mr. Campana.
You just know reading this that “Mr. Campana” is speaking from painful personal experience...
73 posted on
07/14/2008 6:37:45 AM PDT by
Hegemony Cricket
(Vigilantism will arise where the justice system is viewed as overly lenient and/or ineffective.)
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