Gyrodinium dominans Hulburt 1957

A = A living cell in ventral view; B = A living cell at two focal planes; C = A cell in dorsal view at different focal planes (arrowhead=stria, arrow=nucleus). (DIC)


Life-form: Solitary

Size: length 18-43 µm, width 10-22 µm.

Resting spore:

Note: Many different forms. It was common in Gullmarsfjorden in spring

Distinctive features: Surface with striation, nucleus anterior and sulcus sigmoid

Similar species:


Hansen, G. & Larsen, J. 1992. Dinoflagellater i danske farvande. In: Thomsen, H. A. (ed.) Plankton i de indre danske farvande. Havforskning fra Miljøstyrelsen, Copenhagen, p. 45-155.

Hulburt, E. M. 1957. The taxonomy of unarmored Dinophyceae of shallow embayments on Cape Cod, Massachusetts. Biological Bulletin. 112: 196-219.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden