Alexandrium ostenfeldii (Paulsen) Balech & Tangen

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Alexandrium ostenfeldii

A = Cell with foodvacuole; B = Apical pore complex; C&D = 1'-plate with ventral pore(=arrow). A-C DIC, D=Cell stained with calcofluor white, UV-excitation

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Alexandrium ostenfeldii
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
A = Cell with foodvacuole; B = Apical pore complex; C&D = 1'-plate with ventral pore(=arrow). A-C DIC, D=Cell stained with calcofluor white, UV-excitation
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Morphology
Characteristic 1'-plate and large ventral pore
Other remarks
Toxic
Distribution: Widely
Harmfulness, IOC
This species is included in the IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae.
Life form
Solitary
Size
Length 39-57 µm, width 43-54 µm
Resting spore
+
Culture collections
SCCAP
The Scandinavian Culture Collection of Algae and Protozoa at the University of Copenhagen
More info at http://www.sccap.dk.
Strains: K-0324, K-1354, K-0287, K-1492, K-1493
Literature
Balech, E. & Tangen, K. 1985. Morphology and taxonomy of toxic species in the Tamarensis group (Dinophyceae): Alexandrium excavatum (Braarud) comb. nov. and Alexandrium ostenfeldii (Paulsen) comb. nov. Sarsia. 70: 333-343.
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. 1989. Guide to toxic and potentially toxic marine algae. The Fish Inspection Service, Ministry of Fisheries, Copenhagen. p. 61
Østergaard, M. J. & Moestrup, Ø. 1997. Autecology of the toxic dinoflagellate Alexandrium ostenfeldii: life history and growth at different temperatures and salinities. Eur. J. Phycol. 32: 9-18.
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 Alexandrium ostenfeldii
Author (Paulsen) Balech & Tangen 1985
Division DINOPHYTA (PYRROPHYTA)
Class Dinophyceae
Order GONYAULACALES
Trophy AU
Geometric shape rotational ellipsoid
Formula p/6*d^2*l
Size class 1 2
Unit cell cell
Size range 32-37 50-55
Length(l1), µm 35.0 54.0
Diameter(d1), µm 34.0 50.0
No. of cells/counting unit 1 1
Calculated volume, µm3 21 174 70 650
Comment 6 6
Calculated Carbon pg/counting unit 2 491 7 723

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

  • 2017-02-23 12:05:43 Janina Kownacka - Updated media metadata for Alexandrium ostenfeldii_3.jpg
  • 2015-03-24 19:42:04 Bengt Karlson - Deleted media: Alexandrium ostenfeldii_4.jpg
  • 2015-03-23 12:32:39 Bengt Karlson - Added media: Alexandrium ostenfeldii_4.jpg
  • 2014-09-26 12:45:20 Janina Kownacka - Updated media metadata for Alexandrium ostenfeldii_3.jpg
  • 2014-09-26 12:37:50 Janina Kownacka - Updated media metadata for Alexandrium ostenfeldii_3.jpg
  • 2014-09-26 12:27:11 Janina Kownacka - Added media: Alexandrium ostenfeldii_3.jpg
  • 2012-09-28 10:43:39 Ann-Turi Skjevik - Updated media metadata for Alexandrium ostenfeldii_2.jpg
  • 2012-09-28 10:43:06 Ann-Turi Skjevik - Added media: Alexandrium ostenfeldii_2.jpg