Gymnocin A, a cytotoxic polyether, is one of the toxins associated with this phenomenon. Exposure to one organism involved in this phenomenon, Pfiesteria piscicida, has been linked to deficiencies in learning and memory, though no toxin has yet been identified. Other organisms connected with these occurrences include Karenia brevis and Alexandrium 
Gymnocin A, a cytotoxic polyether, is one of the toxins associated with this phenomenon. Exposure to one organism involved in this phenomenon, Pfiesteria piscicida, has been linked to deficiencies in learning and memory, though no toxin has yet been identified. Other organisms connected with these occurrences include Karenia brevis and Alexandrium fundyense, a dinoflagellate that produces saxitoxin which makes shellfish unsafe to eat. This occurrence is not actually associated with tides, thus scientists now use the name "algal bloom". FTP, identify this biological occurrence colloquially named for its characteristically discolored water.
Gymnocin A, a cytotoxic polyether, is one of the toxins associated with this phenomenon.
{red tide} or{h}armful {a}lgal {b}loom