Prymnesin is a chemical with the molecular formula {chem|C|93|H|137|C|l2|NO|36}. Prymnesins are a class of phycotoxins made by the alga Prymnesium parvum. It is known to be toxic to fish, causing mass fish deaths around the world, including in Texas and England. == Structures == Prymnesins are formed of a large polyether polycyclic core with sever...
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(from the article `poison`) ...and Florida; the nature of the poison is unknown. Deaths of large numbers of brackish-water pond fishes because of Prymnesium parvum have been ...
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