At the January meeting of the Delta Stewardship Council, interim Delta Lead Scientist Dr. Lisamarie Windham-Myers highlighted recent research on Harmful Algal Blooms, and highlighted upcoming Delta science events. This month’s article spotlight focuses on research funded by the Delta Science Program on the harmful algal blooms in 2022, a uniquely bad year for the toxic menace.  The research, led by Ellen Preece, focused on how nutrient loading affected cyanobacteria harmful algae blooms (CHABs) in the Deep Water Ship Channel and the Stockton waterfront area in the summer of 2022 and considered four categories of management actions to mitigate the occurrence and impact of the blooms.