Final answer:
Domoic acid is a neurotoxin found in shellfish like mussels, clams, and oysters, originating from microalgae consumed by these shellfish. It can cause Amnesic Shellfish Poisoning in humans, with symptoms ranging from gastrointestinal to neurological issues.
Step-by-step explanation:
Domoic acid is a seafood toxin that is most commonly found in shellfish, particularly species such as mussels, clams, and oysters. Produced by certain types of microalgae called Pseudo-nitzschia, this neurotoxin can accumulate in shellfish that filter feed on these algae. Humans who consume affected shellfish can suffer from Amnesic Shellfish Poisoning (ASP), which is characterized by gastrointestinal and neurological symptoms. It is vital for seafood consumers to be aware of local advisories on shellfish consumption to avoid exposure to domoic acid.
Consumption of contaminated shellfish can have severe consequences, including memory loss, brain damage, and in extreme cases, death. Monitoring programs and regulations are in place to test for and limit the distribution of shellfish that may contain high levels of domoic acid, helping protect public health.