The Gulf Stream, the great regulating current of the Atlantic, is migrating further and further north, very close to the Cabot Strait , between Newfoundland and Nova Scotia, according to the researcher. (Archive photo)
The conclusions of this study are part of the list of 10 discoveries of the year 2023 from the magazine Québec Sciences< /em>.
Fertilizers and nutrients from wastewater discharged into the river would also have their role to play in this deoxygenation.
It has the same phenomenon as blue-green algae in lakes, says Mathilde Jutras. If we add fertilizer to the water, we have [blooms] of algae and when these die, they settle on the seabed where they will be decomposed by bacteria, which breathe and consume the oxygen.
According to the researcher, with better use of resources and better regulation of nutrient discharges, the situation could be resolved.
Solutions to alleviate the hypoxia currently experiencing the St. Lawrence River are proposed, notably in a study co-signed by Mathilde Jutras, published at the end of last December.
The study proposes injecting oxygen residues [from] the production of green hydrogen into [the hypoxic zone], summarizes the researcher.
Deoxygenation in the St. Lawrence Estuary and Labrador Current. BROADCAST HERE FIRST. At the heart of the world.
Deoxygenation in the St. Lawrence Estuary and Labrador Current
BROADCAST HERE FIRSTIn the heart of the world
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