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Char in the High Arctic in a losing battle with climate change: study –

by ahnationtalk on April 10, 2018194 Views

High Arctic’s largest lake sees “drastic” changes from temperature rise of only one degree Celsius

April 10, 2018

The impact that climate change is inflicting on the largest known High Arctic lake—Ellesmere Island’s Lake Hazen—is nothing short of “alarming,” researchers from the University of Alberta have found.

And it’s especially alarming for the lake’s only known species of fish, Arctic char.

In a decade-long study released March 29 under the title, The World’s Largest High Arctic Lake Responds Rapidly to Climate Change, a group of scientists studying glaciology and freshwater ecology in the Arctic found that a one-degree-Celsius rise in atmospheric temperature led to a decline in char populations in Lake Hazen.

The study blames the population decline on added glacial water running into the lake after that one-degree temperature increase caused a string of warm summer seasons in the High Arctic.

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