**** Via NS Government As the weather gets warmer, it is important for people to know about and watch for blue-green algae while enjoying Nova Scotia’s freshwater shorelines Blue-green algae Watch for blue-green algae from May to October. Blue-green algae (also called cyanobacteria) occur naturally in surface waters like lakes, ponds, rivers and streams. The toxins … Continue reading As the weather gets warmer, it is important for people to know about and watch for blue-green algae while enjoying Nova Scotia’s freshwater shorelines