RBMO 46(3): 495-498 | 2011
Research Note

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First record of Cochlodinium convolutum and C. helicoides (Gymnodiniales: Dinophyceae) in the Gulf of California

Ismael Gárate-Lizárraga^1*, Federico García-Domínguez¹, Beatriz Pérez-Cruz² & Jesús Antonio Díaz-Ortiz²

¹Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Apartado postal 592, C.P. 23096, La Paz, B.C.S., México

²Laboratorio Estatal de Salud Pública 'Dr. Galo Soberón y Parra', Boulevard Vicente Guerrero, Esq. Juan R. Escudero s/n, Ciudad Renacimiento, Acapulco, Guerrero, México

*This email address is being protected from spambots. You need JavaScript enabled to view it. 

The naked marine dinoflagellates Cochlodinium convolutum and C. helicoides are reported for the first time in the Gulf of California. They occurred in seawater at 21-24.5°C. Cochlodinium convolutum was found in both bottle and net samples; its abundance ranged from 400-2200 cells L^–1. A total of 96 specimens of C. convolutum and 23 specimens of C. helicoides were examined from the net phytoplankton samples. A short description is given for each species, and photomicrographs provide information about the main morphological characteristics.

Key words: Dinoflagellates, phytoplankton, Mexico

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