A harmful algal bloom in Cocolalla Lake.
June 14, 2024
Stories this photo appears in:
June 16, 2024 1 a.m.
OUR GEM: Harmful algal blooms pose risk
Freshwater algae are a natural and important part of lake, river and stream ecosystems. They produce oxygen by photosynthesis, take up nutrients such as phosphorus from water and are the foundation of aquatic food webs. As with many things in life, there can be too much of a good thing.