The Lake Simcoe Aquatic Invasive Species Guide
With an area of 722 km2 and inflow from 35 major rivers and streams, Lake Simcoe is an important source of biodiversity for the southern Ontario region. The lake and surrounding watershed, which span across 20 municipalities, are home to a wide variety of aquatic and non-aquatic life, including 75 species of warm and coldwater fish, and many provincially rare species-at-risk.










