Geography & Geology

A new program with Ottawa Riverkeeper is trying to better understand the invasive species reports we have received in the watershed. A recent report of European water chestnut in the southern part of the Ottawa River underscores the importance of being able to map the presence and distribution of these species. While this isn’t something we celebrate, it clearly highlights why early detection is critical to limiting the spread of invasive species.

Phosphorus is essential for life, but too much in our waterways can have harmful consequences. By analyzing phosphorus concentrations and identifying high-impact areas, we can take targeted action to reduce pollution and protect both the Ottawa River and the St. Lawrence.

Technology has revolutionized how we track and manage land use and land cover, from manual surveys to sophisticated satellite imagery and GIS mapping. Understanding these advancements is key to making informed decisions about conservation, urban planning, and water resource management.

As water flows across the land of our watershed, and through the streams and tributaries of the river, it acts differently depending on how humans use the land. Creating detailed maps of how land use in our region changes over time can be an invaluable tool in understanding the health of our watershed.

Ottawa Riverkeeper staff member Mark Bernards took some amazing photos while exploring Shirleys Bay!