Thalassiosira rotula Meunier, 1910

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Thalassiosira rotula

Photographer/artist Regina Hansen

Additional image information

Title
Thalassiosira rotula
Photographer/artist
Regina Hansen
Contributing organisation
HELCOM-PEG
Contributor
Regina Hansen
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Image galleries
HELCOM-PEG

Description

IDs in other systems
Tropic type
A
Morphology
Structure of valve face and band next to valvocopula
Other remarks
T. gravida and T. rotula may be the same species (Syvertsen 1977)
Distribution: Widely
Life form
Cells united in chains
Size
8-55 µm
Literature
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.
Syvertsen, E. E. 1977. Thalassiosira rotula and T. gravida : Ecology and morphology. Beih. zur Nova Hedwigia. 54: 99-112.

Biovolumes

Species Thalassiosira rotula
Author Meunier 1910
Division CHRYSOPHYTA (HETEROKONTOPHYTA)
Class Diatomophyceae (Bacillariophyceae)
Order EUPODISCALES (BIDDULPHIALES, CENTRALES)
Trophy AU
Geometric shape cylinder
Formula p/4*d^2*h
Size class 1 2 3 4 5
Unit cell cell cell cell cell
Size range 40 10-20 20-30 30-40 40-50
Height(h), µm 12.0 12.0 12.0 12.0 12.0
Diameter(d1), µm 40.0 15.0 25.0 35.0 45.0
No. of cells/counting unit 1 1 1 1 1
Calculated volume, µm3 15 072 2 120 5 888 11 540 19 076
Comment 6 6 6 6 6
Calculated Carbon pg/counting unit 705 144 329 567 853

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 09:32:58 Regina Hansen - Updated media metadata for Thalassiosira rotula_6.jpg
  • 2013-05-14 09:32:21 Regina Hansen - Added media: Thalassiosira rotula_6.jpg
  • 2012-10-05 15:09:00 Ann-Turi Skjevik - Updated media metadata for Thalassiosira rotula_5.jpg
  • 2012-10-05 15:08:50 Ann-Turi Skjevik - Added media: Thalassiosira rotula_5.jpg
  • 2012-10-05 15:08:36 Ann-Turi Skjevik - Updated media metadata for Thalassiosira rotula_4.jpg
  • 2012-10-05 15:08:01 Ann-Turi Skjevik - Added media: Thalassiosira rotula_4.jpg
  • 2012-09-24 14:33:17 Ann-Turi Skjevik - Updated media metadata for Thalassiosira rotula_3.jpg
  • 2012-09-24 14:33:06 Ann-Turi Skjevik - Added media: Thalassiosira rotula_3.jpg
  • 2011-09-25 07:10:45 Bengt Karlson - Updated media metadata for Thalassiosira rotula_2.gif
  • 2011-09-25 07:09:59 Bengt Karlson - Added media: Thalassiosira rotula_2.gif