Dinoflagellate

Hi there, big fish!
This evening, we're going to be discussing Dinoflagellates. Living dinoflagellates are one of the most important components in plankton. They are small single-celled organisms, which swim freely in water with a forward spiraling motion. One of the many problems caused by dinoflagellates would be that they cause Harmful Algal Blooms. Consumption of seafood that is contaminated by these algal toxins results in various seafood poisoning syndromes, such as: paralytic shellfish poisoning, neurotoxis shellfish poisoning, amnesic shellfish poisoning, diarrheic shellfish poisoning, cuguatera fish poisoning, and azaspiracid shellfish poisoning. This can be cured by seeing a doctor immediately once these symptoms begin. 
Hope this was useful information!
Adios.
~Little Fish Leanne