by Spencer Fern, Delta Science Coordinator, Restore the Delta Harmful algal blooms (HABs) are a nuisance species of algae that form in conditions of high nutrient loads (Nitrogen and Phosphorous), stagnant waters (low-flow conditions), sunlight exposure, water clarity, high water temperatures (generally > 75° F), as well as salinity (however HABs are becoming increasingly salt tolerant)....Read More