Dinophysis acuta Ehrenberg 1839

Living cells (BF)


Life-form: Solitary

Size: Length 54-94 µm, width 43-60 µm.

Resting spore:

Note: Width here = dorso-ventral depth. Dimorphic cells have been observed (Hansen 1993a). This species has been associated with DSP outbreaks (Larsen & Moestrup 1992)

Distinctive features: The cells are widest below the middle

Similar species: Dinophysis norvegica

Distribution: Worldwide

Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart. 186 pp.

Hansen, G. 1993a. Dimorphic individuals of Dinophysis acuta and D. norvegica (Dinophyceae) from Danish waters. Phycologia. 32: 73-75.

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.

Larsen, J. & Moestrup, Ø. 1992. Potentially toxic phytoplankton. 2. Genus Dinophysis (Dinophyceae). In: Lindley, J. A. (ed.) ICES Identification leaflets for plankton. International Council for the exploration of the sea, Copenhagen, p. 1-12.

Steidinger, K. A. & Tangen, K. 1996. Dinoflagellates. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 387-584.

  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