Search results
Results from the WOW.Com Content Network
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.
Nitzschia is found mostly in colder waters, and is associated with both Arctic and Antarctic polar sea ice, where it is often found to be the dominant diatom. Nitzschia includes several species of diatoms known to produce the neurotoxin known as domoic acid, a toxin responsible for the human illness called amnesic shellfish poisoning.
Domoic acid, which is an amino acid, is not always produced by the phytoplankton. It is only manufactured under certain conditions — ones which scientists are still trying to determine.
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 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.
Sea lions off the coast of California are dying from domoic acid poisoning caused by consuming fish or muscles that have been eating the toxic algae. Marine mammals in California are falling ...
Domoic acid (DA) is a neurotoxin known to cause Amnesic Shellfish Poisoning (ASP) in humans and other predators that consume contaminated aquatic organisms that have consumed P. australius. [16] DA has been isolated in several species of red algae, but is produced mostly by members of the Pseudo-nitzschia genus. Chemical structure of domoic acid