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North Water Polynya

  • 4 min read
  • 5 chapters

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Through Canada, Climate change and Man and the Biosphere Programme

Fauna

Polynyas are often compared to oases as their open waters allow for an unusually early spring plankton bloom and an open water wintering area in a frozen world. This provides food for Arctic cod, a species that plays a critical role in supporting the entire ecosystem. Large concentrations of marine mammals, from walrus to seals and polar bears, feed at the ice edge until spring break-up. The same habitat provides vital feeding grounds for millions of seabirds, including an estimated two-thirds of the world population of little auk (dovekie) and thick-billed murres.

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