Earth News, Earth Science, Energy Technology, Environment News

February 18, 2013

Rapid changes in Arctic ecosystem during 2012 ice minimum
Bremerhaven, Germany (SPX) Feb 18, 2013
Huge quantities of algae are growing on the underside of sea ice in the Central Arctic: in 2012 the ice algae Melosira arctica was responsible for almost half the primary production in this area. When the ice melts, as was the case during the ice minimum in 2012, these algae sink rapidly to the bottom of the sea at a depth of several thousands of metres. Deep sea animals such as sea cucumbers and brittle stars feed on the algae, and bacteria metabolise what's left, consuming the oxygen in the sea bed. ... read more

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