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NÚMERO 3

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A new record of Azadinium spinosum(Dinoflagellata) from the tropical Mexican Pacific

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Comunidades de parásitos eumetazoos de peces labrisómidos de Chile central

NOTA CIENTÍFICA

Sighting of the fin whale in the Eastern Subtropical South Pacific: Potential breeding ground?

Autores

CORRESPONSAL

Jorge Acevedo

jorge.acevedo@cequa.cl

1

1

Centro de Estudios del Cuaternario Fuego-Patagonia y Antártica, Fundación CEQUA, 21 de Mayo 1690, Punta Arenas, Chile

Magnus O’Grady

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2

10 Ebor st., Te Aro, Wellington, New Zealand

Ben Wallis

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3

6-6 Ormond Street, Bondi Beach, NSW 2026, Australia

Resumen

The species Azadinium spinosum, a small thecate dinoflagellate, originally and recently described from the North Sea, was found for the first time in the tropical Pacific coast of Mexico. Description by light and scanning electron microscopy and abundance data are here provided. The morphology of the species agrees with the original description, including size, shape, presence of posterior spine and tabulation details. Less than 300 cells L-1 were found in one station in the Pacific coast of Mexico. This species has been recognized as a producer of azaspiracid toxins (AZAs) in the North Sea, although no toxin analysis has been made as yet in Mexican waters.

Palabras clave

Azadinium spinosum, Azaspiracid toxins, Dinoflagellates, Mexican Pacific, new record

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