Pseudo-nitzschia pungens (Grunow ex P.T. Cleve) Hasle, 1993

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Pseudo-nitzschia pungens

A&B = Valve (DIC), arrowhead in B=two rows of poroids; C = Part of valve (inside view, SEM). All dry preparations

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Pseudo-nitzschia pungens
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
A&B = Valve (DIC), arrowhead in B=two rows of poroids; C = Part of valve (inside view, SEM). All dry preparations
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Morphology
Two rows of poroids in the striae are discernible with the LM. No central interspace and approximately equal numbers of fibulae and interstriae. Structure of girdle unique (Hasle et al. 1996).
Other remarks
Can produce domoic acid (Rhodes et al. 1998, Trainer et al. 1998)
Distribution: Worldwide
Harmfulness, IOC
This species is included in the IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae.
Life form
Cells united in chains
Size
Apical axis = 74-142 µm, transapical axis 3-4.5 µm
Literature
Hasle, G. R., Lange, C. B. & Syvertsen, E. E. 1996. A review of Pseudo-nitzschia, with special reference to the Skagerrak, North Atlantic, and adjacent waters. Helgoländer Meersunters. 50: 131-175.
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.
Rhodes, L., Scholin, C., Garthwaite, I., Haywood, A. & Thomas, A. 1998. Domoic acid producing Pseudo-nitzschia species educed bt whole cell DNA probe-based and immunochemical assays. In: Harmful Algae VIII (Reguera, B., Blanco, J., Fernández, M.L. & Wyatt, T. eds). Xunta de Galicia and Intergovernmental Oceanographie Commission of UNESCO 1998. pp. 274-277
Trainer, V. L., Wekell, J. C., Horner, R., Hatfield, C. L. & Stein, J. E.1998. Domoic acid producing Pseudo-nitzschia pungens. In: Harmful Algae VIII (Reguera, B., Blanco, J., Fernández, M.L. & Wyatt, T. eds). Xunta de Galicia and Intergovernmental Oceanographie Commission of UNESCO 1998, pp. 337-

Biovolumes

Species Pseudo-nitzschia pungens
Author (Grunow ex P.T. Cleve) Hasle 1993
Division CHRYSOPHYTA (HETEROKONTOPHYTA)
Class Diatomophyceae (Bacillariophyceae)
Order BACILLARIALES (PENNALES)
Trophy AU
Geometric shape parallelepiped-20%
Formula l*w*h*0.8
Size class 1 2 3 4
Unit cell cell cell cell
Size range 3x100-120 4x85-130 5-6x120-130 8x130-150
Length(l1), µm 110.0 120.0 120.0 140.0
Width(w), µm 3 4 5.5 8
Height(h), µm 3.0 3.0 5.0 5.0
No. of cells/counting unit 1 1 1 1
Calculated volume, µm3 792 1 152 2 640 4 480
Calculated Carbon pg/counting unit 65 88 172 263

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

  • 2013-05-14 08:59:49 Regina Hansen - Updated media metadata for Pseudo-nitzschia pungens_3.jpg
  • 2013-05-14 08:59:14 Regina Hansen - Added media: Pseudo-nitzschia pungens_3.jpg
  • 2011-10-28 10:14:51 Wenche Eikrem - Updated media metadata for Pseudo-nitzschia pungens_2.jpg
  • 2011-10-28 10:12:10 Wenche Eikrem - Added media: Pseudo-nitzschia pungens_2.jpg