Pyrrophyta


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to Pyrrophyta: phylum Pyrrophyta, Euglenophyta, Chrysophyta

Pyrrophyta

the fire algae, of which the Dinophycae or dinoflagellates form the most important members of the PHYTOPLANKTON. They possess a photosynthetic pigment which is yellow to golden brown in colour (hence ‘fire algae’). Most forms have two dissimilar FLAGELLA though others lack them entirely.
Mentioned in ?
References in periodicals archive ?
En este mes Chlorophyta abarco el 33% de los individuos reportados, seguido de Cyanophyta (26%), Heterokonthophyta (22%), Euglenophyta (13%), Xanthophyta (5%) y Pyrrophyta (1%).
En febrero, el numero de especies llego a 100 perteneciendo a las divisiones Chlorophyta (30%), Heterokonthophyta (29%), Euglenophyta (20%), Cyanophyta (19%), Xanthophyta (1%) y Pyrrophyta (1%; tabla 2).
Among the other groups analyzed, Bacillariophyta and Pyrrophyta were negatively correlated with Diff2-10m, and Cryptophyta showed only a weak correlation with temperature at 2 m (Table 2).
The main groups considered in the identification were: Bacillariophyta, Chlorophyta, Pyrrophyta and Cyanobacteria (Hoek et al.
The phytoplankton species compositions in Qingdao and Weihai were quite similar, being composed of 50% Bacillariophyta, 29% Pyrrophyta, 5% Chlorophyta, 5% Chrysophyta, 7% Protozoa, and 4% unidentified species.
2000) and Richards (2001) also reported the presence of algae, from divisions such as Cyanobacteria, Chrysophyta, Euglenophyta, Chlorophyta and Pyrrophyta.
En relacion con los grupos dominantes, en la epoca de lluvias Lo son las algas de las divisiones Cryptophyta y Bacillariophyta, en la epoca de secas codominan los grupos Pyrrophyta, Cianobacteria y Badllariophyta, mientras que durante la epoca de nortes el grupo dominante corresponde a Bacillariophyta (Fig.