Algae blooms becoming more intense, lasting longer in Qu'Appelle Valley lakes: U of Regina biologist
"We do know that those blooms … are starting earlier. They're becoming more intense and they're lasting longer," Leavitt said, citing atmospheric warming as a leading cause. Leavitt published a paper last year that found toxins were present in the Qu'Appelle lakes during more days of the summer than 15 years earlier. Toxin levels in the lakes, at times, were above recreational advisory levels, his paper said. Blue-green algae looks like scum, fuzz or grass clippings on the surface of water.(Bruce Johnson) The algae blooms are also fed by phosphorus and nitrates released into the water sy...