Science activity

We began field sampling in April and May in order to get baseline pre-bloom data. Three sites were visited: Stockton, Big Break, and Discovery Bay. On-site we used an Aqua Troll sonde to gather water profiling data and an Aqusens imager to collect images from the surface and at depth. MVI scores were recorded for in situ observation (looking directly down on the water) and for water aliquoted into a bucket or tray as part of DWR's effort to streamline methods. We even dunked a GoPro into the water to record any passing Microcystis flakes! Samples were archived for extracted chlorophyll, qPCR of the Microcystis toxin gene, cyanobacterial counts, nutrients, and toxins. These early season trips have allowed us to streamline the whole sampling procedure so we're ready for bloom season!