Thalassiosira eccentrica (Ehrenberg) P.T. Cleve, 1903-1904

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Thalassiosira eccentrica

Valve with strutted processes (=arrowheads) with organic threads, labiate process (=arrow) and spines (SEM)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Thalassiosira eccentrica
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Copyright stamp
Maria Kuylenstierna
Institute
Dept. of Marine botany, University of Gothenburg
Contributing organisation
University of Gothenburg
Contributor
Bengt Karlson
Caption
Valve with strutted processes (=arrowheads) with organic threads, labiate process (=arrow) and spines (SEM)
Geographic area
Skagerrak - Swedish coast
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
SEM Scanning Electron Microscopy
Preservation
Not described
Contrast enhancement
Not described
Stain
Sputter coated
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Morphology
Marginal spines and areola pattern
Other remarks

Distribution: Worldwide
Life form
Solitary or cells united in chains
Size
Diameter 15-110 µm
Literature
Fryxell, G. & Hasle, G. R. 1972. Thalassiosira eccentrica (Ehrenb.) Cleve, T. symmetrica sp. nov., and some related centric diatoms. J. Phyc. 8: 297-317.
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.
Takano, H. 1990. Diatoms. In “Red tide organisms in Japan-An illustrated taxonomic guide”. (Y. Fukuyo, H. Takano, M. Chihara & K. Matsuoka eds). Uchida Rokakuho, Tokyo, p. 162-331.

Biovolumes

Species Thalassiosira eccentrica
Author (Ehrenberg) P.T. Cleve 1903
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 6 7
Unit cell cell cell cell cell cell cell
Size range 30 135 40-50 50-60 60-70 70-90 90-110
Height(h), µm 24.0 25.0 22.5 27.5 19.5 24.0 30.0
Diameter(d1), µm 30.0 135.0 45.0 55.0 65.0 80.0 100.0
No. of cells/counting unit 1 1 1 1 1 1 1
Calculated volume, µm3 16 956 357 666 35 767 65 302 64 674 120 576 235 500
Comment 6 6 6; HD fac.=0.5 6; HD fac.=0.5 6; HD fac.=0.3 6; HD fac.=0.3 6; HD fac.=0.3
Calculated Carbon pg/counting unit 775 9 189 1 420 2 314 2 296 3 804 6 548

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

  • 2011-09-25 06:52:59 Bengt Karlson - Updated media metadata for Thalassiosira eccentrica_3.gif
  • 2011-09-25 06:51:44 Bengt Karlson - Added media: Thalassiosira eccentrica_3.gif
  • 2011-09-25 06:51:25 Bengt Karlson - Updated media metadata for Thalassiosira eccentrica_2.gif
  • 2011-09-25 06:49:35 Bengt Karlson - Added media: Thalassiosira eccentrica_2.gif