Although there`s no evidence of toxicity in Lake Superior blooms so far, they are monitoring it closely to see what triggers these blooms.
"We`ve seen either small or large blooms of a blue green algae along the south shore of Lake Superior between the Twin Ports and the Apostle Islands. This falls under the general subject of harmful algal blooms," said Bob Sterner, the director of UMD`s Large Lakes Observatory and the lead researcher of these blooms...