Thalassiosira punctigera (Castracane) Hasle

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Thalassiosira punctigera

A = Two living cells united with a thin connecting thread (=arrowhead) (BF); B = Cell in valve view; C = Frustule in girdle view (arrow=Occluded process)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Thalassiosira punctigera
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
A = Two living cells united with a thin connecting thread (=arrowhead) (BF); B = Cell in valve view; C = Frustule in girdle view (arrow=Occluded process)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Morphology
Occluded processes, strutted processes and ribbed valve margin
Other remarks
Occluded processes may be missing
Distribution: Widely
Life form
Solitary or chain-forming
Size
Diameter = 40-186 µm
Literature
Hasle, G. R. 1983a. Thalassiosira punctigera (Castr.) comb. nov., a widely distributed marine planktonic diatom. Nordic Journal of Botany. 3: 593-608.
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.

External links

Biovolumes

Species Thalassiosira punctigera
Author (Castracane) Hasle 1983
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
Unit cell cell cell
Size range 40-50 50-60 60-70
Height(h), µm 22.5 27.5 32.5
Diameter(d1), µm 45.0 55.0 65.0
No. of cells/counting unit 1 1 1
Calculated volume, µm3 35 767 65 302 107 790
Comment * 6; HD fac.=0.5 * 6; HD fac.=0.5 * 6; HD fac.=0.5
Calculated Carbon pg/counting unit 1 420 2 314 3 474

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 09:31:48 Regina Hansen - Updated media metadata for Thalassiosira punctigera_6.jpg
  • 2013-05-14 09:31:09 Regina Hansen - Added media: Thalassiosira punctigera_6.jpg
  • 2012-10-24 13:21:12 Ann-Turi Skjevik - Updated media metadata for Thalassiosira punctigera_4.jpg
  • 2012-10-24 13:17:48 Ann-Turi Skjevik - Added media: Thalassiosira punctigera_4.jpg
  • 2012-10-24 13:15:33 Ann-Turi Skjevik - Deleted media: Thalassiosira punctigera_4.jpg
  • 2012-10-05 15:07:02 Ann-Turi Skjevik - Updated media metadata for Thalassiosira punctigera_5.jpg
  • 2012-10-05 15:06:58 Ann-Turi Skjevik - Added media: Thalassiosira punctigera_5.jpg
  • 2012-10-05 15:06:44 Ann-Turi Skjevik - Updated media metadata for Thalassiosira punctigera_4.jpg
  • 2012-10-05 15:05:47 Ann-Turi Skjevik - Added media: Thalassiosira punctigera_4.jpg
  • 2012-10-05 15:05:35 Ann-Turi Skjevik - Deleted media: Thalassiosira punctigera_4.jpg
  • 2012-10-05 14:57:26 Ann-Turi Skjevik - Updated media metadata for Thalassiosira punctigera_4.jpg
  • 2012-10-05 14:56:51 Ann-Turi Skjevik - Added media: Thalassiosira punctigera_4.jpg
  • 2011-09-25 07:07:16 Bengt Karlson - Updated media metadata for Thalassiosira punctigera_3.gif
  • 2011-09-25 07:06:35 Bengt Karlson - Added media: Thalassiosira punctigera_3.gif
  • 2011-09-25 07:05:47 Bengt Karlson - Updated media metadata for Thalassiosira punctigera_2.gif
  • 2011-09-25 07:04:37 Bengt Karlson - Updated media metadata for Thalassiosira punctigera_2.gif
  • 2011-09-25 07:03:33 Bengt Karlson - Added media: Thalassiosira punctigera_2.gif