shellfish poisoning


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shellfish poisoning

 
an acute intoxication caused by ingestion of bivalve mollusks contaminated with the neurotoxin (saxitoxin) secreted by certain dinoflagellates, protozoa that are an important component of marine plankton. One form, paralytic shellfish poisoning, is caused by species of Gonyaulax, and is characterized by paresthesias of the mouth, lips, face, and limbs, nausea, vomiting, and diarrhea; in rare severe cases muscle weakness or paralysis and respiratory embarrassment and death may occur. A self-limited milder form, neurotoxic shellfish poisoning, not associated with paralysis, is caused by species of Gymnodinium.

shellfish poisoning

Etymology: AS, scell + fisc
a toxic neurologic condition that results from eating clams, oysters, or mussels that have ingested the toxin-producing protozoa commonly called the red tide. The characteristic symptoms appear within a few minutes and include nausea, lightheadedness, vomiting, and tingling or numbness around the mouth, followed by paralysis of the extremities and, possibly, respiratory paralysis. Saxitoxin, the causative agent, is not destroyed by cooking. However, the severity of the illness is diminished if the water used in cooking is not consumed. See also Gonyaulax catenella, venerupin poisoning.

shellfish poisoning

Poisoning caused by eating shellfish that have fed on plankton during a red tide. There are several recognized syndromes that may result, including amnesic shellfish poisoning, diarrheal shellfish poisoning, and paralytic shellfish poisoning.
See also: poisoning
References in periodicals archive ?
Accumulation and depuration of paralytic shellfish poisoning toxins by purple clam Hiatula rostrata Lightfoot.
Identification of Dinophysis fortii as the causative organism of diarrhetic shellfish poisoning.
There are three additional possible syndromes to worry about as well from different varieties of red tide - neurotoxic, diarrheic and amnesic shellfish poisoning.
The toxins, known as paralytic shellfish poisoning (PSP) toxins, can cause numbness and drowsiness, loss of consciousness and respiratory failure.
CONCLUSIONS: Associated with fatal paralytic shellfish poisoning (PSP) in the Pacific but not known to be toxic in the western Atlantic, P.
The Scottish Shellfish Marketing Group (SSMG) undertook the recall, after its own testing found levels of Paralytic Shellfish Poisoning (PSP) toxins above the legal limit.
Traces of paralytic shellfish poisoning (PSP) were found above legally permitted levels during routine tests.
Titled A Molecular Basis for Differential Susceptibility and Accumulation of Paralytic Shellfish Poisoning Toxins in Commercial Bivalves, the study was supported by grants from NOAA's Ecology and Oceanography of Harmful Algal Blooms (ECOHAB) program and the National Institutes of Health (NIH).
31 because of the potential of domoic acid and paralytic shellfish poisoning.
Neurotoxic shellfish poisoning is caused by the red tide dinoflagellate, which produces brevetoxins.