Dr. Tom Bruulsema is Chief Scientist with Plant Nutrition Canada and provides support to the agricultural industry with agronomic, crop and soil science in the Lake Erie Watershed and beyond. He has lived in the Lake Erie Watershed much of his life.
Blue Green Algae:
Info from: https://www.ontario.ca/page/blue-green-algae
The colors we see in this aerial image may seem beautiful, but sometimes color contrasts like this can mean unhealthy bodies of water.
Notice the deep blue areas toward the center of the lake vs. the green-blue areas around the edges of the lake. The center of the lake is deeper, and therefore has generally cooler waters. The outer edges of the lake are more shallow and warmer – which we know is a great environment for the formation of algal blooms.
Bathymetry is the measurement of depth of water in oceans, seas, or lakes. The bathymetric image shown here depicts the depths of Lake Erie. Notice where the lake is most shallow. As we look at aerial images of the lake, keep in mind where these shallow areas are, and where algal blooms most often appear.
Dr. Tom Bruulsema discusses HAB history and which nutrients must be present for algal blooms to flourish.
What conditions in Lake Erie make it ideal for HABs to form?
What is the primary nutrient that help create an algae bloom?
Study the Western Lake Erie Watershed to look for activities that may impact water quality.
What research, strategies and technologies can farmers use to help protect water quality?
Many people, including legislators, conservation groups and farmer organizations, are working on solutions. Which efforts will be effective?