We are seeing a blue-green algae bloom in the Sooke Harbour and Basin. There is often no single trigger for these blooms and they are far from predictable. The creation of these blooms require the right combination of light/food/temperature for that particular species of algae. One theory is that recent rain events have moved nutrients into our waters, which have warmed up during the last few sunny days, hence producing the algae bloom and the beautiful tropical colour in our local waters.
Algae blooms are natural and are not necessarily an indicator of water quality concerns.