Ducks Unlimited Canada says it's putting additional effort into protecting Alberta wetlands from nutrient-rich runoff that can help trigger blue-green algae blooms.
"Because of a number of factors, including land-use change, we're seeing an increase in the number of algal blooms and the timing," said Tracy Scott of Ducks Unlimited Canada.
Ducks Unlimited Canada restores between 240 and 365 hectares of wetland a year in Alberta and says it's increasingly planting more trees and other plants to help slow down the flow of fertilizer and manure into prairie potholes. "People don't think about blue-green algae as ecosystem engineers, but the weird thing is, they kind of self-propagate by doing this," said Dr. Rolf Vinebrooke, a professor at the University of Alberta who teaches courses on algae biology.
Research is underway to measure the problematic blooms over time using historical satellite imagery combined with analysis on the ground.
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