Paralytic Shellfish Poisoning (PSP) - Causative Organisms:
Alexandrium spp.
  | ||
Alexandrium tamarense (Photo credit - Larry Fritz) |
  | Alexandrium tamarense - cyst form (Photo credit - Y. Fukuyo) |
  |   | |
  | Immunofluorescently-labeled Alexandrium cell sp. (most likely fundyense) (Photo credit - Kristin Gribble/WHOI) |
  |