Lac Saint-Pierre and its archipelago

The Lac Saint-Pierre region was recognized as a UNESCO “World Biosphere Reserve” in 2000, and is now part of this international network whose primary objective is the conservation of natural and cultural heritage, while promoting the sustainable development of the territory.
Consequently, economic activities must respect the capacity of ecosystems to maintain their natural functions.
To achieve this, the participation of local communities is essential to reconcile research, education and monitoring.
The reserve’s territory is divided into three zones: one where conservation is the priority; another allowing activities compatible with the protection of natural and cultural heritage; and the third where resources are exploited in a sustainable manner.
Lac Saint-Pierre is a widening of the St. Lawrence River whose surface area, including its archipelago, varies from around 480 km² at low water to 660 km² at high water.
Its vast floodplain is the largest in the St. Lawrence.
Not surprisingly, it contains 40% of the river’s wetlands.
Its shallow waters and wetlands are home to an exceptional wealth of biological diversity: 24 species of mammals, 79 species of freshwater fish, 288 species of resident birds and 167 nesting birds, not to mention a remarkable flora that includes 27 rare plant species. All these species need a natural environment and quality water to live healthy lives, which is why it’s essential to protect them.