Pseudo-nitzschia H.Perag. in H.Perag. & Perag.

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Pseudo-nitzschia cf. cuspidata (Hasle) Hasle emend. Lundholm, Moestrup & Hasle, 2003

Pseudo-nitzschia cf. cuspidata. TEM micrographs. (A and B), Scale bars = 10 µm. (C) Scale bar = 5 µm. (D) Scale bar = 1 µm. (E) Scale bar = 0.5 µm. (A and B) Whole valves with pointed ends. (C) The two ends of one valve. (D) Middle part of valve showing distal (upper) and proximal (bottom) mantles, uniseriate striae, central interspace and central nodule. (E) Part of the valve with perforate poroids; note variation in poroid structure, usually hymen of poroids divided into two perforated parts.    

Photographer/artist Vladyslava Hostyeva

Additional image information

Title
Pseudo-nitzschia cf. cuspidata (Hasle) Hasle emend. Lundholm, Moestrup & Hasle, 2003
Photographer/artist
Vladyslava Hostyeva
Copyright holder
Vladyslava Hostyeva
Copyright stamp
VH
Institute
Biological Institute
Contributing organisation
University of Oslo
Contributor
Wenche Eikrem
Caption
Pseudo-nitzschia cf. cuspidata. TEM micrographs. (A and B), Scale bars = 10 µm. (C) Scale bar = 5 µm. (D) Scale bar = 1 µm. (E) Scale bar = 0.5 µm. (A and B) Whole valves with pointed ends. (C) The two ends of one valve. (D) Middle part of valve showing distal (upper) and proximal (bottom) mantles, uniseriate striae, central interspace and central nodule. (E) Part of the valve with perforate poroids; note variation in poroid structure, usually hymen of poroids divided into two perforated parts.    
Sampling date
Sampling 2009-2010
Geographic area
North Sea- Norwegian coast
Location
Outer Oslofjorden
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
TEM Transmission Electron Micoscopy
Preservation
Formaldehyde
Image galleries
Skagerrak-Kattegat

Description

Biovolumes

Species Pseudo-nitzschia
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 5 6
Unit cell cell cell cell cell cell
Size range 3x10 3x40 3x50-70 3-4x70-100 5x100-150 10x100-150
Length(l1), µm 10.0 40.0 60.0 85.0 125.0 125.0
Width(w), µm 3 3 3 3 5 10
Height(h), µm 2.0 2.0 3.0 3.0 5.0 10.0
No. of cells/counting unit 1 1 1 1 1 1
Calculated volume, µm3 48 192 432 612 2 500 10 000
Calculated Carbon pg/counting unit 7 20 40 52 164 505

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

  • 2012-09-24 14:32:20 Ann-Turi Skjevik - Updated media metadata for Pseudo-nitzschia_4.jpg
  • 2012-09-24 14:32:09 Ann-Turi Skjevik - Added media: Pseudo-nitzschia_4.jpg
  • 2012-09-14 11:56:45 Ann-Turi Skjevik - Deleted media: Pseudo-nitzschia_4.jpg
  • 2012-09-14 11:56:19 Ann-Turi Skjevik - Updated media metadata for Pseudo-nitzschia_4.jpg
  • 2012-09-14 11:56:11 Ann-Turi Skjevik - Added media: Pseudo-nitzschia_4.jpg
  • 2012-09-14 11:55:41 Ann-Turi Skjevik - Updated media metadata for Pseudo-nitzschia_3.jpg
  • 2012-09-14 11:55:32 Ann-Turi Skjevik - Added media: Pseudo-nitzschia_3.jpg
  • 2011-10-28 10:30:04 Wenche Eikrem - Updated media metadata for Pseudo-nitzschia_2.jpg
  • 2011-10-28 10:28:14 Wenche Eikrem - Added media: Pseudo-nitzschia_2.jpg
  • 2011-10-28 10:26:36 Wenche Eikrem - Updated media metadata for Pseudo-nitzschia_1.jpg
  • 2011-10-28 10:24:04 Wenche Eikrem - Added media: Pseudo-nitzschia_1.jpg