Investigations of Red Tides Along the Southern California Coast
Gregorio, Dominic E.
Pieper, Richard E.
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Prior to 1976 red tides of the dinoflagellate Lingulodinium polyedra <br /><br />usually developed during the fall of the year. From 1976 until 1994 there was an <br /><br />hiatus of red tide blooms. In the winter of 1995 an extensive red tide, dominated <br /><br />by L. polyedra, developed along the entire Southern California Bight. This new <br /><br />pattern of winter and spring red tides continued through 1996 and 1997. In ad- <br /><br />dition, a localized red tide persisted at the Los Angeles River mouth from winter <br /><br />through summer. During post-bloom conditions, L. polyedra cells were observed <br /><br />erupting from their cell walls, taking on a naked amoeboid form.