Map showing Bay-Delta cyanotoxin study area

These maps show locations for the two methods of data collection for this study. Map A shows continuous water quality fixed monitoring stations (points) and the two stations (stars) where whole water and SPATT samples will be collected. Map B shows the area covered by the boat-based mapping surveys. Color gradient shows variation in the percent of the total chlorophyll-a pool attributed to cyanobacteria (aka blue-green algae) measured using a bbe FluoroProbe during 2018 USGS surveys, with yellow and orange indicating higher concentrations.