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Billions of juvenile polar cod under the Arctic ice, confirmed by German marine biologists

Wednesday, October 14th 2015 - 21:08 UTC
Full article 2 comments

Using a new net, marine biologists from Germany's Alfred Wegener Institute have, for the first time, been able to catch polar cod directly beneath the Arctic sea ice with a trawl, allowing them to determine their large-scale distribution and origin. This information is of fundamental importance, as polar cod are a major source of food for seals, whales and seabirds in the Arctic. Read full article

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  • DennisA

    “a habitat the researchers fear could disappear as a result of climate change.”
    The usual unsupportable caveat. Arctic ice has increased since 2012 and is back to almost the satellite average. Seems like the depletion of the world's fish stocks is a bit debatable also.

    Do these researchers never read any literature before they make their pronouncements about global warming/climate change?

    “The variability in the northward-moving cyclones traveling into the Arctic over East Siberia was found to covary strongly with the Barents Sea ice extent. The main mechanism is believed to be the change in the Arctic winds and in ice advection connected to the cyclones. In addition, cyclone activity of northward-moving cyclones over the western Nordic Seas was identified to strongly influence the Barents Sea ice extent.

    This relationship was particularly strong on decadal time scales and when the ice extent lagged the cyclone variability by 1–2 yr. The lag indicates that the mechanism is related to the cyclones’ ability to modulate the inflow of Atlantic water into the Nordic Seas and the transport time of oceanic heat anomalies from the Nordic Seas into the Barents Sea.”

    http://journals.ametsoc.org/doi/abs/10.1175/JCLI3885.1

    Oct 15th, 2015 - 08:15 am - Link - Report abuse 0
  • Pugol-H

    @1 DennisA
    Ok, so if the ice isn’t melting why is the mean sea level rising and at an increasing rate?

    As for the fish stocks

    https://en.wikipedia.org/wiki/Collapse_of_the_Atlantic_northwest_cod_fishery

    Which still hasn’t recovered and doesn’t look like it will any time in the near future, if ever.

    It is possible to catch all the fish that are there.

    Oct 15th, 2015 - 03:36 pm - Link - Report abuse 0

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