Thalassiosira angulata (Gregory) Hasle, 1978

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Thalassiosira angulata

A = Two cells viewed at three focal planes; B = Cleaned valve (arrowheads=labiate processes near strutted process) (DIC)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Thalassiosira angulata
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
A = Two cells viewed at three focal planes; B = Cleaned valve (arrowheads=labiate processes near strutted process) (DIC)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Other remarks
See Hasle (1978)
Distribution: North Atlantic Ocean
Life form
Cells united in chains
Size
Diameter = 12-39 µm
Literature
Hasle, G. R. 1978a. Some Thalassiosira species with one central process (Bacillariophyceae). Norw. J. Bot. 25: 77-110.
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.

Biovolumes

Species Thalassiosira angulata
Author (Gregory) Hasle 1978
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 8
Unit cell cell cell cell cell cell cell cell
Size range 20-25 25-30 30-35 35-40 40-45 45-50 50-55 55-60
Height(h), µm 10.8 13.2 15.6 18.0 20.4 22.8 25.2 27.6
Diameter(d1), µm 22.5 27.5 32.5 37.5 42.5 47.5 52.5 57.5
No. of cells/counting unit 1 1 1 1 1 1 1 1
Calculated volume, µm3 4 292 7 836 12 935 19 870 28 925 40 382 54 524 71 633
Comment 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48 6; HD fac.=0.48
Calculated Carbon pg/counting unit 254 414 622 882 1 195 1 567 1 999 2 494

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

  • 2012-10-05 14:51:00 Ann-Turi Skjevik - Updated media metadata for Thalassiosira angulata_4.jpg
  • 2012-10-05 14:50:20 Ann-Turi Skjevik - Added media: Thalassiosira angulata_4.jpg
  • 2012-10-05 14:50:07 Ann-Turi Skjevik - Updated media metadata for Thalassiosira angulata_3.jpg
  • 2012-10-05 14:49:35 Ann-Turi Skjevik - Added media: Thalassiosira angulata_3.jpg
  • 2012-09-24 14:34:43 Ann-Turi Skjevik - Updated media metadata for Thalassiosira angulata_2.jpg
  • 2012-09-24 14:34:34 Ann-Turi Skjevik - Added media: Thalassiosira angulata_2.jpg