Garate-Lizarraga, IsmaelSiqueiros-Beltrones, David A.Maldonado-Lopez, Veronica2008-09-302008-09-302003-04Garate-Lizarraga I, Siqueiros-Beltrones DA, Maldonado-Lopez V. 2003. First record of a Rhizosolenia debyana bloom in the Gulf of California, Mexico. Pac Sci 57(2): 141-145.0030-8870http://hdl.handle.net/10125/2666A bloom of the diatom Rhizosolenia debyana H. Peragallo was observed in the southwestern Gulf of California. This bloom was estimated to be about 22 Ian long and represents the first record of this species for the area. Total abundance of R. debyana ranged from 2,576,000 to 3,684,000 cells liter^-1. Chlorophyll a concentrations ranged from 17.15 to 41.45 mg/m^3. Rhizosolenia debyana has a tropical and subtropical distribution.en-USArticle