Algae
Pyrrophyta
Gymnodinium spp.

Lake Winnipeg Research Consortium

Gymnodinium helveticum, G. helveticum f. achroum

G. caudatum, G. fuscum, G. ordinatum, G. palustre, G. uberrimum, G. varians

Over 20 US fw spp.

D - One or more Gymnodinium species (usually G. heleveticum f. achroum) are found amond the spring dominants of Lakes Superior, Michigan and Ontario. Gymnodinium is also among the summer dominants in Lake Michigan.

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