What does domoic acid do?

Domoic acid attacks the brain and the heart causing seizures and heart failure. If left untreated, it usually causes permanent brain damage. The toxin will naturally flush from an animal’s system over time, but sea lions repeatedly exposed to the toxin will suffer longer-lasting and more serious effects.

What does domoic acid do to the animals that ingest it?\?

Domoic acid is produced by the algae Pseudo-nitzchia and causes vomiting, unusual behaviors, seizures, loss of pregnancy, and death in the sea lions and other organisms. The increase in sea lion cases may be indicative of an increasing threat to other marine species.

What causes domoic acid levels to rise?

The toxin is caused by a number of different species of microscopic marine diatoms of the genus Pseudonitzschia. The human illness known as amnesic shellfish poisoning (ASP) is caused by eating fish, shellfish or crab containing the toxin.

Is domoic acid harmful to humans?

Domoic acid, a naturally occurring toxin produced by certain types of algae, can be harmful or even fatal to humans if contaminated shellfish is consumed.

Is domoic acid the same as red tide?

Domoic acid is a naturally occurring biotoxin that does not present danger in small quantities. Domoic acid is often associated with “Red Tide”. Red Tide occurs when certain phytoplankton species with reddish pigments bloom, resulting in water that appears to be colored red.

How many people have died from amnesic shellfish poisoning?

People poisoned with very high doses of the toxin or displaying risk factors such as old age and kidney failure can die. Death has occurred in four of 107 confirmed cases.

Is domoic acid a biotoxin?

Domoic acid is a marine biotoxin toxin called Amnesic Shellfish Poison (ASP) which is produced by the diatom Pseudo-nitzschia sp., a type of naturally occurring microscopic algae. Shellfish eat these algae and can retain the toxin. People can become ill from eating shellfish contaminated with Amnesic Shellfish Poison.

How common is domoic acid poisoning?

Since the establishment of safe levels, there have been no major outbreaks of domoic acid poisoning reported in humans.

Where do Microcystins come from?

A: Microcystin is a toxin that is released by some species of blue-green algae, or cyanobacteria.