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Domoic acid (DA) is a kainic acid-type neurotoxin that causes amnesic shellfish poisoning (ASP). [1] It is produced by algae and accumulates in shellfish , sardines , and anchovies . When sea lions, otters, cetaceans, humans, and other predators eat contaminated animals, poisoning may result.
Amnesic shellfish poisoning (ASP) is an illness caused by consumption of shellfish that contain the marine biotoxin called domoic acid. [1] In mammals , including humans, domoic acid acts as a neurotoxin , causing permanent short-term memory loss , brain damage , and death in severe cases.
The likely cause, domoic acid from an offshore algae bloom, is not unusual. But the breadth of the poisoning, which can cause brain damage, seizures and death in sea lions, is rare, experts say.
The toxin causes amnesic shellfish poisoning (ASP) and so the coast was closed for shellfishing while a domoic acid monitoring program was established. After deaths from ASP occurred in 1940, there have been monitoring programs in Washington state to monitor domoic acid levels in marine organisms known for accumulating domoic acid. [15]
The neurotoxin domoic acid is blamed for the extreme distress and deaths of many sea lions along the Central Coast, as well as the deaths of two dolphins and two seals. Scores of reports of sick ...
Domoic acid is a neurotoxin released by Pseudo-nitzschia, a common phytoplankton species found in coastal waters. Sea lions — and other marine mammals — become poisoned when they eat large ...
The marine mammals are suffering from domoic acid, a neurotoxin that affects the brain and heart, the institute said in a statement. The poisoning event is largely affecting adult female California sea lions, it said. The nonprofit said it had rescued 23 animals so far.
Diatoms produce domoic acid, another neurotoxin, which can cause seizures in higher vertebrates and birds as it concentrates up the food chain. Domoic acid readily accumulates in the bodies of shellfish , sardines , and anchovies , which if then eaten by sea lions , otters , cetaceans , birds or people, can affect the nervous system causing ...