Cyanobacteria causing the Lake Ontario to turn neon-blue

by camille.hebert on September 4, 2013 - 5:36pm

We can be surprised by the beauty of this aerial photography, but the issue underneath is not so pretty. The phenomenon could grow due to global warming.

The special color of the lake was due to the warm weather. When the lake’s water gets hot, blue-green algae start to develop and cause the pH to rise. As it rises, calcium and carbonate ions get together and form white blocks of calcite over the blue-green algae. These white blocks reflect the blue and green color very well, which gives the water this teal tint. An accumulation of blue-green algae can be dangerous for the survival of fishes. The Canadian and American government has to take measures to stop the dumping of dangerous waste in the lakes. It’s the phosphorus contained in waste who feeds the blue-green algaes and who helps them to proliferate.

This article shows us of the Earth’s balance is fragile. Small disturbances in the ecosystem of a lake can have big consequences on the fauna and flora depending on it. It is important to take care of our lakes big and small alike.

http://www.cbc.ca/news/technology/story/2013/09/03/lake-ontario-blue-green-algae.html

Here is an article about how phosphorus affected Lake Erie:

http://www.cbc.ca/news/technology/story/2013/08/30/wdr-internatinal-joint-commission-phosphorus-runoff.html

 

 

 

About the author