Upstream | April 10, 2012 | 28 comments

Polar bears now have symptoms of mystery disease also found in seals and walruses

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JanforGore
Symptoms of a mysterious disease that has killed scores of seals off Alaska and infected walruses are now showing up in polar bears, the U.S. Geological Survey (USGS) said on Friday.

Nine polar bears from the Beaufort Sea region near Barrow were found with patchy hair loss and oozing sores on their skin, similar to conditions found in diseased seals and walruses, the agency said in a statement.

Unlike the sickened seals and walruses, the affected polar bears seem otherwise healthy, said Tony DeGange, chief of the biology office for the USGS's Alaska Science Center. There had been no deaths among polar bears, he said.

The nine affected bears were among the 33 that biologists have captured and sampled while doing routine studies on the Arctic coastline, DeGange said.

Patchy hair loss has been seen before in polar bears, but the high prevalence in those spotted by the researchers and the simultaneous problems in seal and walrus populations elevate the concern, he said.

The USGS is coordinating with agencies studying the other animals to investigate whether there is a link, he said.

"There's a lot we don't know yet, whether we're dealing with something that's different or something that's the same," he said.

The disease outbreak was first noticed last summer. About 60 seals were found dead and another 75 diseased, according to National Oceanic and Atmospheric Administration (NOAA). Most of the affected seals are ringed seals, but diseased ribbon, bearded and spotted seals were also found.

Several walruses in northwestern Alaska were found with the disease, and some of those died as well, according to the U.S. Fish and Wildlife Service.

The diseased seals and walruses, many of them juveniles, had labored breathing and lethargy as well as the bleeding sores, according to the experts. The agencies launched an investigation into the cause of the disease, which has also turned up in bordering areas of Canada and Russia.

Preliminary studies showed that radiation poisoning is not the cause, temporarily ruling out a theory that the animals were sickened by contamination from the tsunami-wrecked Fukushima nuclear plant in Japan.

Spread of the disease among seals continues. A sickened and nearly bald ribbon seal pup was found about a month ago near Yakutat on the Gulf of Alaska coastline, according to the agency. The animal was so sick it had to be euthanized.

All of the afflicted species are dependent on Arctic sea ice and considered vulnerable to seasonal ice loss.
By Yereth Rosen



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28 comments // Polar bears now have symptoms of mystery disease also found in seals and walruses

  • JanforGore
  • Novek
    • +1
      Novek  
    • So the symptoms match perfectly with those in radiation poisoning and the chances of a disease passing from predator to prey is pretty much nill. Sounds like someone's not letting something out about the amount of radiation over there.

    • 1 year ago
  • EmperorThan
  • 20thsieclefox
  • artemis6
  • 20thsieclefox
  • circlesquared
  • EmperorThan
    • 0
      EmperorThan  
    • circlesquared:

      Why won't we be told? Scientists don't just withhold scientific findings yo. Last time I checked scientists were and still are the ones raising alarms with climate change and with Fukushima.

      Hell, if they were going to be all secretive they just wouldn't tell us about the sickness at all. That's not how science works.

      "And we would have gotten away with it too if it wasn't for those pesky reporters!!!"

    • 1 year ago
  • circlesquared
    • +1
      circlesquared  
    • EmperorThan:

      the symptoms were noticed by individuals and could not have been kept completely secret, but how many people actually have heard about this? Not many if you are out talking to folks. We will not be told that this is radiation. That would potentially lead to strong undesired reactions from many that don't currently know this is even happening.

    • 1 year ago
  • jubal
  • JanforGore
  • ecoalex
  • JanforGore
    • +3
      JanforGore  
    • http://www.akbizmag.com/Alaska-Business-Monthly/December-2011/Alaska-Ringed-Seal...

      "Alaska Ringed Seals Deaths Declared an Unusual Mortality Event; Walrus Pending: Cause Not Yet Identified; Public Encouraged To Report Sightings of Diseased or Dead Animals

      NOAA today declared the recent deaths of ringed seals in the Arctic and Bering Strait regions of Alaska an unusual mortality event, triggering a focused, expert investigation into the cause. A decision by the U.S. Fish and Wildlife Service on making such a declaration for Pacific walrus in Alaska is pending.

      Since mid-July, more than 60 dead and 75 diseased seals, most of them ringed seals, have been reported in Alaska, with reports continuing to come in. During their fall survey, scientists with the U.S. Fish and Wildlife Service also identified diseased and dead walruses at the annual mass haul-out at Point Lay.

      Seals and walruses suffering from this disease have skin sores, usually on the hind flippers or face, and patchy hair loss. Some of the diseased mammals have exhibited labored breathing and appear lethargic. Scientists have not yet identified a single cause for this disease, though tests indicate a virus is not the cause.

      Hunters continue to see numerous healthy animals, and despite considerable contact with seals by hunters and field research personnel throughout this event, no similar illnesses in humans have been reported. Still, it is not known whether the disease can be transmitted to humans, pets, or other animals. Native subsistence hunters should use traditional and customary safe handling practices, and the Alaska Division of Public Health recommends fully cooking all meat and thoroughly washing hands and equipment with a water/bleach solution.

      Any member of the public who encounters a seal or walrus that looks sick or behaves unusually, such as by not fleeing from humans, should avoid approaching or making contact with the animal. Sick or dead marine mammals should be reported to the following agencies, based on where the animal is seen:

      •North Slope area: North Slope Borough Department of Wildlife Management: 907-852-0350
      •Bering Strait region: Alaska Sea Grant Marine Advisory Program: 1-800-478-2202 or 907-443-2397
      •Elsewhere in Alaska: NOAA Fisheries Alaska marine mammal stranding hotline: 1-877-925-7773

      Necropsies and laboratory tests to date have found skin lesions in most cases, as well as fluid in the lungs, white spots on the liver, and abnormal growths in the brain. Some seals and walruses have undersized lymph nodes, which may indicate compromised immune systems.

      Testing continues for a wide range of possible factors that may be responsible for the animals’ condition, including immune system-related diseases, fungi, man-made and bio-toxins, radiation exposure, contaminants, and stressors related to sea ice change.

      Walruses and ringed seals in Russia, and ringed seals in Canada, have reportedly suffered similar symptoms. While it is not clear if the disease events are related, the timing and location of the disease suggests the possibility of transmission between the populations, or shared exposure to an environmental cause."
      ~~~~~~~~~
      Something either passed between these two places, or a similar event happening in both places, like permafrost melting.

    • 1 year ago
  • Incredulous
    • +4
      Incredulous  
    • hard to read jan, really hard to read. I don't think the kind of greed responsible for this even considers the loss or damage of a species problematic....

    • 1 year ago
  • JanforGore
    • +3
      JanforGore  
    • Incredulous:

      To me this is truly a message about the folly of humanity. I am so saddened by what we are doing with what seems to be no consideration for anything. Not even realizing how this affects us down the line. There are many signs and events that need to be connected but I fear by the time that happens it will be too late. I just hope they find out what is causing this, but then would they even be allowed to tell us the truth depending on what the cause is?

    • 1 year ago
  • OlBlue
    • +4
      OlBlue  
    • This really sucks. These poor creatures could be the canary in a coal mine. I hope they get it figured out soon and that it doesn't spread further.

    • 1 year ago
  • JanforGore
  • JanforGore
    • +4
      JanforGore  
    • The zappers here who now hate me because I am honest are zapping this off the board faster than an oil exec is made happy by this government because well, it just can't be seen! What a sad place when a posting about a real present danger to animals and humanity is shoved off this site just because it isn't some political or trash mag shock article/video. If I didn't know better I would think this site had been taken over by Republican Fox loving anti environmental tea bagger clones who want the site to fail.

    • 1 year ago
  • JanforGore
    • +4
      JanforGore  
    • Image
    • http://www.latimes.com/news/nation/nationnow/la-na-nn-arctic-drilling-20120328,0...

      "The Obama administration, pursuing what the president has described as an “all-of-the-above” energy strategy, announced Wednesday it is also moving forward with studies of offshore oil development in the mid- and southern Atlantic Ocean. U.S. Interior Secretary Ken Salazar said the department will be accepting comments on a draft environmental impact statement looking at whether, and where, offshore leasing might be appropriate.

      Alaskan officials have welcomed approval of offshore drilling as a means of keeping oil flowing through the trans-Alaska pipeline as the aging onshore fields on the North Slope continue to decline.

      Shell officials also were celebratory.

      “Today's approval of our Beaufort Sea oil spill response plan, on the heels of the recent approval of our Chukchi Sea oil spill response plan, is another major milestone achieved. It further reinforces that Shell’s approach to Arctic exploration is aligned with the high standards the Department of Interior expects from an offshore leader and adds to our confidence that drilling will finally commence in the shallow waters off Alaska this summer,” spokeswoman Kelly op de Weegh said in a statement."

      ~~~~~
      This is the area where bears and other animals are sick. But oh my, the oil execs were "celebratory." How sweet!

    • 1 year ago
  • JanforGore
  • JanforGore
    • +4
      JanforGore  
    • Listening to this it is good to know others care about what is going on that we humans more than likely brought upon them. I won't go so far to say that I too wonder if it could also be deliberate to keep the animals out of the way of a certain oil company drilling there come summer...

    • 1 year ago
  • JanforGore
    • +2
      JanforGore  
    • Image
    • http://current.com/technology/93690450_loss-of-arctic-sea-ice-may-lead-to-mercur...

      Which seems to make this much more plauisble:

      "Significant declines in perennial Arctic sea ice over the past decade may be intensifying a chemical reaction that leads to deposits of toxic mercury, a NASA-led study showed on Thursday.

      The study found that thick, perennial Arctic sea ice was being replaced by a thinner and saltier ice that releases bromine into the air when it interacts with sunlight and cold, said Son Nghiem, a NASA researcher at the Jet Propulsion Laboratory in Pasadena.

      That in turn triggers a chemical reaction called a "bromine explosion" that turns gaseous mercury in the atmosphere into a toxic pollutant that falls on snow, land and ice and can accumulate in fish, said Nghiem, lead author of the study."
      ~~~~~~~~
      If any of them have eaten tainted fish, this could be why they are sick. I suppose we will only care when it gets to us.

    • 1 year ago
  • artemis6
  • JanforGore
  • JanforGore
  • JanforGore
  • coolplanet
    • +2
      coolplanet  
    • JanforGore:

      I've been feeling progressively worse for the past two years. My doctor has run dozens of tests and can't find what it is. It's a heaviness in my legs that makes it difficult to stand up or walk, and constant exhaustion. I'm still able to work but have to really push myself and rest often.
      It feels like some kind of poisoning. I wonder if it's mercury and arsenic in the air and water (higher levels in Pittsburgh than any city in the U.S.) They still haven't ruled out sewer gas.
      So to answer your question I think it's already happening.

    • 1 year ago
  • JanforGore
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