Final answer:
Amnesic Shellfish Poisoning (ASP) is caused by ingesting shellfish contaminated with domoic acid produced by algae in phenomena like red tides. Symptoms range from gastrointestinal distress to severe neurological problems. To protect public health, organizations monitor and regulate shellfish harvesting during these events.
Step-by-step explanation:
What is Domoic Acid- Amnesic Shellfish Poisoning?
Amnesic Shellfish Poisoning (ASP) is a form of poisoning that humans can acquire by eating shellfish contaminated with the toxin domoic acid. This toxin is produced by certain types of algae, such as diatoms, which can accumulate in shellfish like clams, mussels, and scallops when they filter water containing the toxic algae. When humans consume these contaminated shellfish, they can experience symptoms that range from gastrointestinal distress to severe neurological problems, like memory loss and confusion, similar to those caused by harmful dinoflagellates like Pfiesteria piscicida.
Red tide is a phenomenon associated with harmful algal blooms, including the toxin-producing algae responsible for ASP. The Massachusetts Division of Marine Fisheries monitors toxin levels in shellfish and bans harvesting if the toxin levels exceed safety thresholds to prevent ASP.
The severity of ASP depends on the quantity of domoic acid ingested, and the symptoms can be acute or even life-threatening. This condition exemplifies how environmental changes, like the excessive growth of particular algae, can have a direct impact on human health and marine ecology.