Winter monitoring of nutrients in the St. Lawrence Estuary

Winter monitoring of nutrients in the St. Lawrence Estuary

October 28, 2021
Science

A team of scientists studied the nutrient transport pathways in the lower St. Lawrence Estuary using results from the 2018 Odyssée St-Laurent winter mission. The mission provided the first winter turbulence observations, which cover the largest spatial extent ever measured in the area during any season.

Scientists previously assumed that the estuary’s surface layer received its nutrient supply from vertical mixing processes. On the contrary, Bluteau et al. found that fluvial nitrate inputs are the most significant source of nitrate in the estuary. The authors also provide seasonal perspectives on the nutrient transport pathways.

Read the full paper here.

 

Picture by Alexis Riopel