dinoflagellate toxin

di·no·flag·el·late tox·in

a potent neurotoxin thought to act similarly to botulinus toxin by impairing the synthesis or the release of acetylcholine. Responsible for "red tide" loss of shellfish.
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In the absence of a reliable environmental marker for exposure to dinoflagellate toxin, time spent on risky waters was used as a surrogate exposure index for potential Pfiesteria or exposure to MRO.
The choice of 5 miles to define exposure is somewhat arbitrary; dinoflagellate toxin has not been characterized completely and cannot be measured in the environment.
Moreover, scientists have not determined whether visual contrast sensitivity is affected by known dinoflagellate toxins.
Chemistry and distribution of deleterious dinoflagellate toxins.