Outdoornews
June 9, 2021
And the authors said declining oxygen could lead to increased fish kills, algal blooms and methane emissions.
Researchers examined the temperature and dissolved oxygen the amount of oxygen in the water – in nearly 400 lakes and found that declines were widespread. Their study, published recently in the journal Nature, found dissolved oxygen fell 5.5 % in surface waters of these lakes and 18.6% in deep waters.
The authors said their findings suggest that warming temperatures and decreased water clarity from human activity are causing the oxygen decline.
“Oxygen is one of the best indicators of ecosystem health, and changes in this study reflect a pronounced human footprint,” said co-author Craig E. Williamson, a biology professor at Miami University in Ohio.
Prespa Lake. Oxygen levels in lakes in Europe and the US are sinking, a new study finds. Credit: Fation Plaku /CC BY-SA 4.0A new study published on Wednesday in the journal Nature shows that oxygen levels in hundreds of lakes in Europe and the United States have dropped over the last four decades.This disturbing condition may…
Oxygen levels have dropped in hundreds of lakes in the United States and Europe over the last four decades, a new study found. And the authors said declining oxygen could lead to increased fish kills, algal blooms and methane emissions..