THE ST. LAWRENCE
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TOPOGRAPHY, CURRENTS AND TIDES: THE SOURCE OF MARINE LIFE IN THE ST. LAWRENCE • BY FANNY ROHRBACHER
PHOTO Shutterstock/RLS Photo
From the Great Lakes to the Atlantic Ocean, the St. Lawrence contains all sorts of ecosystems, each incredible in its own way. Between freshwater and saltwater, currents and tides, ice and summer heat, the river changes with the seasons and oceanographic phenomena. From minute phytoplankton to huge whales, it is home to an amazingly diverse range of wild species and is extraordinarily productive. Here is an overview of the phenomena that help it maintain its equilibrium, ensure its long-term survival and enable life to flourish.
