This advanced course is for HAMP participants who did the online courses in previous years, and need their annual refresher on phytoplankton sampling and identification, plus want a bit more. Suitable for site managers, fish health personnel, and those who may have more interest in plankton, it covers a review of sampling and sample analysis, plus the most important points on harmful algae species seen to affect finfish aquaculture in BC, and an overview of phytoplankton ecology and bloom dynamics.