Plan St-Laurent - Pour un développement durable

• The St. Lawrence
  River – yours to discover
  • A great river
  • Physical and biological characteristics
  • Changes of the
    St. Lawrence River
  • Lake Saint-Pierre
  • 

Physical and biological characteristics

Water and sediments

What Do You Know about the Hydrographic Divisions of the St. Lawrence River?
St. Lawrence Water Masses
Flows of the St. Lawrence River and Its Main Tributaries
Do You Know the Drainage Basins of Canada?
The St. Lawrence Fluvial Lakes
Sediment Dynamics in the St. Lawrence River
The Sedimentary History of Lake Saint-Pierre

Biological ressources

Non-native Species in the Great Lakes–St. Lawrence Basin
Wetlands of the St. Lawrence River: Habitats between Land and Water

Shorelines

Main Protected Areas along the St. Lawrence Shoreline