Dinophysis acuta Ehrenb.

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Dinophysis acuta

Living cells (BF)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Dinophysis acuta
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
Living cells (BF)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Note on taxonomy
Testar
Tropic type
A/H
Morphology
The cells are widest below the middle
Other remarks
Width here = dorso-ventral depth. Dimorphic cells have been observed (Hansen 1993a). This species has been associated with DSP outbreaks (Larsen & Moestrup 1992)
Distribution: Worldwide
Harmful
Test test
Harmfulness, IOC
This species is included in the IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae.
Life form
Solitary
Size
Length 54-94 µm, width 43-60 µm
Literature
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.

Biovolumes

Species Dinophysis acuta
Author Ehrenberg 1839
Division DINOPHYTA (PYRROPHYTA)
Class Dinophyceae
Order DINOPHYSALES
Trophy MX
Geometric shape flattened ellipsoid
Formula p/6*l*d1*d2
Size class 1 2 3 4 5
Unit cell cell cell cell cell
Size range 55-57 58-60 61-65 75 85
Length(l1), µm 56.0 59.0 63.0 75.0 85.0
Diameter(d1), µm 41.0 43.0 46.0 55.0 62.0
Diameter(d2), µm 28.0 29.5 31.5 37.5 42.5
No. of cells/counting unit 1 1 1 1 1
Calculated volume, µm3 33 644 39 167 47 774 80 953 117 214
Comment HD fact.=0.5 HD fact.=0.5 HD fact.=0.5 HD fact.=0.5 HD fact.=0.5
Calculated Carbon pg/counting unit 3 848 4 438 5 348 8 776 12 423

Source

Olenina, I., Hajdu, S., Edler, L., Andersson, A., Wasmund, N., Busch, S., Göbel, J., Gromisz, S., Huseby, S., Huttunen, M., Jaanus, A., Kokkonen, P., Ledaine, I. and Niemkiewicz, E. 2006 Biovolumes and size-classes of phytoplankton in the Baltic Sea HELCOM Balt.Sea Environ. Proc. No. 106, 144pp. (PDF),
PEG_BVOL.zip

Change History

  • 2015-04-08 11:38:30 Susanne Busch - Updated media metadata for Dinophysis acuta_8.JPG
  • 2015-04-08 11:37:53 Susanne Busch - Added media: Dinophysis acuta_8.JPG
  • 2015-04-08 11:37:03 Susanne Busch - Updated media metadata for Dinophysis acuta_7.JPG
  • 2015-04-08 11:34:45 Susanne Busch - Added media: Dinophysis acuta_7.JPG
  • 2014-06-02 10:47:58 Regina Hansen - Updated media metadata for Dinophysis acuta_6.png
  • 2014-06-02 10:35:11 Regina Hansen - Updated media metadata for Dinophysis acuta_6.png
  • 2014-06-02 10:33:44 Regina Hansen - Deleted media: Dinophysis acuta_7.png
  • 2014-06-02 10:31:49 Regina Hansen - Added media: Dinophysis acuta_7.png
  • 2014-06-02 10:30:28 Regina Hansen - Added media: Dinophysis acuta_6.png
  • 2012-11-15 11:41:12 Ann-Turi Skjevik - Deleted media: Dinophysis acuta_6.jpg
  • 2012-10-28 13:26:58 Bengt Karlson - Updated media metadata for Dinophysis acuta_6.jpg
  • 2012-10-28 13:24:27 Bengt Karlson - Added media: Dinophysis acuta_6.jpg
  • 2012-09-14 11:32:27 Ann-Turi Skjevik - Updated media metadata for Dinophysis acuta_5.gif
  • 2012-09-14 11:32:17 Ann-Turi Skjevik - Added media: Dinophysis acuta_5.gif
  • 2012-05-14 21:03:21 Bengt Karlson - Updated media metadata for Dinophysis acuta_4.jpg
  • 2012-05-14 21:02:39 Bengt Karlson - Added media: Dinophysis acuta_4.jpg
  • 2012-05-14 20:47:36 Bengt Karlson - Updated media metadata for Dinophysis acuta_3.jpg
  • 2012-05-14 20:45:32 Bengt Karlson - Added media: Dinophysis acuta_3.jpg
  • 2012-02-21 15:51:19 Ann-Turi Skjevik - Updated media metadata for Dinophysis acuta_2.jpg
  • 2012-02-21 15:50:29 Ann-Turi Skjevik - Added media: Dinophysis acuta_2.jpg
  • 2011-09-26 11:20:28 Bengt Karlson - Updated media metadata for Dinophysis acuta_1194529726.jpg
  • 2011-09-14 14:28:36 Bengt Karlson - Deleted media: Dinophysis acuta_1194335475.jpg
  • 2011-09-14 14:28:31 Bengt Karlson - Deleted media: Dinophysis acuta_1193610341.mp4