Thalassiosira angulata (Gregory) Hasle, 1978

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Thalassiosira cf. angulata

Photographer/artist Ann-Turi Skjevik

Additional image information

Title
Thalassiosira cf. angulata
Photographer/artist
Ann-Turi Skjevik
Copyright holder
Ann-Turi Skjevik
Institute
SMHI
Contributor
Ann-Turi Skjevik
Sampling date
2005-04-04
Geographic area
Kattegat - Swedish coast
Location
N7 Nidingen
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
Light microscopy
Preservation
Not described
Contrast enhancement
DIC/Nomarski
Stain
No stain
Image galleries
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